[go: up one dir, main page]

WO1993010599A1 - Dispositif pour la reception d'ondes transmises par un satellite geostationnaire - Google Patents

Dispositif pour la reception d'ondes transmises par un satellite geostationnaire Download PDF

Info

Publication number
WO1993010599A1
WO1993010599A1 PCT/JP1992/001471 JP9201471W WO9310599A1 WO 1993010599 A1 WO1993010599 A1 WO 1993010599A1 JP 9201471 W JP9201471 W JP 9201471W WO 9310599 A1 WO9310599 A1 WO 9310599A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
satellite
data
geostationary
geosynchronous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1992/001471
Other languages
English (en)
Japanese (ja)
Inventor
Makoto Akisada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DX Antenna Co Ltd
Original Assignee
DX Antenna Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DX Antenna Co Ltd filed Critical DX Antenna Co Ltd
Priority to US07/988,937 priority Critical patent/US5424750A/en
Publication of WO1993010599A1 publication Critical patent/WO1993010599A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Definitions

  • the present invention relates to, for example, a receiver for receiving broadcast signals transmitted from a plurality of geostationary satellites launched on the equator, respectively.
  • an antenna dedicated to receiving radio waves from the satellite for example, a parabolic antenna or a planar antenna
  • a parabolic antenna or a planar antenna Use a tena.
  • a single antenna receives broadcast signals from multiple geosynchronous satellites, it is necessary for this single antenna to track each geostationary satellite.
  • An apparatus for this purpose is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 4-207206.
  • This device is intended to receive radio waves from two satellites launched on the equator, so that the elevation of the parabolic antenna can be adjusted manually.
  • the same azimuth angle is configured to be able to be adjusted by the actuator, and at the time of shipment from the factory, this parabolic antenna is installed at a predetermined installation position. After adjusting the elevation angle required to receive each of the above satellites, and after actually installing it at the installation position, it is necessary to drive the actuator. Then, the azimuth of the Labola antenna is adjusted so that radio waves from each geostationary satellite can be received. Adjustment of the azimuth angle is necessary to receive radio waves from both satellites at this installation point. According to the required azimuth angle, the control is performed based on the data set in advance in the control unit of the actuator.
  • the data for adjusting the azimuth angle after adjusting the elevation angle are actually obtained from the parabolic antenna.
  • the azimuth at which radio waves from each operative star can be received well is searched, and the data based on this is returned to the control unit of Actu Yue. Must be set.
  • such a receiving device that receives radio waves from a plurality of satellites is described in, for example, “Radio-Technical Society of Japan”, March 1994, Vol. Articles from pages 16 to 24 of March 1) ⁇ Satellite PCM World J (by Hamano I), especially in Photo 4 on page 18
  • some satellites indicate which channel is being received from which satellite from among the radio waves from multiple satellites.
  • the name of the channel currently being received among the multiple channels transmitted from the satellite Has many satellites launched between 69 ° and 144 ° E longitude on the equator, and the US territory is vast.
  • the present invention which can determine whether or not a satellite can be received from the receiving point, can be used to receive radio waves from a plurality of satellites when a receiver is installed. The purpose is to facilitate configuration.
  • the present invention relates to a receiving antenna, a driving means for changing the direction of the antenna along a geosynchronous orbit in which a plurality of geostationary satellites are launched, and First storage means for storing a plurality of data to be supplied to the driving means so as to direct the antenna to each of the geostationary satellites at a reception point; and Detecting means for detecting a change in the direction of the satellite, and supplying, to the driving means, one of the data corresponding to the one geostationary satellite at a receiving point different from the receiving point. Means and the above antenna until the reception signal from the above antenna disappears in the above data supply state.
  • the first convenient means corresponding to the another geosynchronous satellite is modified Means for correcting the data of the first storage means corresponding to the another geosynchronous satellite based on the corrected data corresponding to the one geosynchronous satellite when supplying the data of Can also be provided.
  • the present invention also provides an antenna for receiving radio waves from a plurality of geosynchronous satellites launched into a geosynchronous orbit, a driving means for changing the direction of the antenna along the geosynchronous orbit, and Storage means for storing a plurality of data to be supplied to the driving means so as to direct the antenna to each of the geostationary satellites; detecting means for detecting a change in the orientation of the antenna; and Means for supplying one of the data corresponding to the one geostationary satellite to the driving means, a map including the installation position of the antenna, and the geostationary orbit are displayed.
  • the above-mentioned geostationary orbit in response to the indicated display means and the output of the detection means changed in accordance with the change in the orientation of the antenna based on the supplied data.
  • FIG. 1 is a block diagram of an embodiment of a geostationary satellite receiver according to the present invention.
  • FIG. 2 shows a part of a flowchart illustrating an operation performed by the CPU used in the present embodiment.
  • FIG. 3 shows another part of a flowchart illustrating the operation performed by the CPU used in the present embodiment.
  • FIG. 4 shows the remaining part of the flowchart showing the operation performed by the CPU used in the present embodiment.
  • FIG. 5 is a diagram showing a display of the display device of the present embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
  • the geostationary satellite receiver according to the present embodiment is, for example, from the plurality of geostationary satellites launched between 69 ° and 143 ° W in the geosynchronous orbit over the equator toward the United States. It is intended to receive the transmitted waves in the United States.
  • a converter 16 is integrally provided behind the primary radiator 14.
  • the primary radiator 10 receives the primary radiator and receives the primary radiator.
  • a probe (not shown) is provided for receiving ultra-high frequency signals from geostationary satellites supplied via 14.
  • the signal from this probe is converted to a lower frequency intermediate frequency signal in a converter 16.
  • the intermediate frequency signal from the comparator 16 is supplied to, for example, a tuner 18 provided indoors, where the intermediate frequency signal is restored to a base node signal. , To be picked up by a television receiver (not shown).
  • the parabola antenna 10 Since the parabola antenna 10 needs to receive radio waves from multiple geosynchronous satellites, it is necessary to change its direction along a geosynchronous orbit.
  • AZ-EL mounts there are AZ-EL mounts, X-Y mounts, and polar mounts as methods for changing the direction of the parabolic antenna, but in this embodiment, The polar mount method is used.
  • the polar mount method is based on the installation location of the parabolic antenna.
  • the polar axis is arranged parallel to the earth axis at (reception point), that is, inconsistent with the ground relative to the ground at the reception point, and the red axis is arranged at right angles to this polar axis. Therefore, if the antenna is rotated around the red axis and the elevation angle is set in accordance with the red rhythm of multiple satellites that want to receive the elevation once, the rotation around the polar axis will be To By rotating the antenna, the parabolic antenna can be oriented in the direction of the satellite to be received. All of the geostationary satellites that are to be received by tenor 10 are at the same declination, since they are all launched above the equator. Therefore, once the declination axis has been adjusted according to the receiving point, the satellites can then be adjusted by simply adjusting the azimuth of the antenna with the polar axis as the center of rotation. You can turn to the Bora antenna 10.
  • Polar mounts also include, for example, East Mounts, which are mainly used on the west coast of the United States, and C, which are mainly used on the East Coast.
  • East Mounts which are mainly used on the west coast of the United States
  • C which are mainly used on the East Coast.
  • the control of the drive unit 21 is performed by the CPU 22.
  • the CPU 22 has a memory 28 consisting of a ROM 24 and a RAM 26.
  • CPU 2 2 is ROM 2 4 It operates in accordance with the program described in
  • the CPU 22 controls the actuation unit 21 by controlling the relay unit 21 interposed between the actuating unit 21 and the power supply unit 30 corresponding thereto. 2 by controlling it. For example, when the azimuth is controlled with the polar axis as the center and the antenna is directed to the east, and when it is directed to the west, the voltage supplied to the actuator unit 2 I is different. Reverse the polarity.
  • a pulse signal is generated every time the actuating unit 20 expands and contracts by a certain length.
  • the generator 34 is provided in the power generator 20.
  • the pulse signal from the pulse generator 34 is supplied to the CP 22.
  • the number of satellites that can be received at a certain receiving point in the United States is limited, but at this receiving point, the number of satellites that can be received must be adjusted in order to receive each receivable star.
  • the data on how to adjust the azimuth around the polar axis for each satellite is recorded in RA ⁇ 26. How this data is created will be described later.
  • one of the above data in RAM 26 is used by the user.
  • the selection is made by operating the operation unit 36 provided in the CPU 22, and in response to this selection, the CPU 22 controls the relay 32, and Point the parabolic antenna 10 at the satellite you want to use.
  • the CPU 22 is provided with a liquid crystal display section 40 which is controlled by a liquid crystal display device driving section 38.
  • the liquid crystal display section 40 has, for example, R 0 M 2 Based on the data stored in Fig. 4, a map 42 showing the mainland of the United States as shown in Fig. 5 is displayed.
  • an equator mark 44 which represents the equator above which each geostationary satellite is launched.
  • This equatorial mark 4 4 is the position of the satellite that has been launched to the east most in the United States, for example, by arranging 50 points at regular intervals. From the position corresponding to 9 °, the position of the satellite launched to the west, which is the 144th west longitude, is displayed.
  • Satellite marks 46 are displayed above and below the equator mark 44 at the position corresponding to the launch position of the satellite from which the parabolic antenna 10 is currently receiving radio waves. .
  • the direction of parabolic antenna 10 is changed so as to receive radio waves from other satellites.
  • the display position of the satellite mark 46 is accordingly changed.
  • Each RAM data recorded in RAM 26 is RO
  • This R0M data is selected as the center point of the continental United States, for example, at 100 ° W west and 40 ° N latitude, at which point the polar axis of the mount is Placed parallel to the ground axis of the point, and With the elevation angle of the antenna centered on the declination axis adjusted according to the receiving point, adjust the azimuth angle of the antenna around the polar axis to determine whether the satellite is 69 ° west longitude.
  • the polar axis is adjusted in the same way, and the parabolic antenna required until the radio wave is received from the satellite at the position of 144 west longitude is taken down.
  • the change in the azimuth angle of the satellite is classified into 500 segments, and the values required to receive each satellite are calculated.
  • This ROM data is stored in the parabolic antenna 10 for any of the three types of mounts: West Mount, East Mount, and H-H Mount. Three types are pre-balanced for each type so that they may be used.
  • the azimuth angle is obtained and the value is stored.
  • CPU 22 is supplied with the control signal used to perform automatic gain control in tuner 18 after being amplified by amplifier 48.
  • the synchronization signal detector 50 detects a synchronization signal from a baseband signal supplied from the tuner 18 to the television receiver. And is supplied to the CPU 22.
  • the probe in the antenna ⁇ 16 may not coincide with the polarization plane of the radio wave from the satellite. . That For this reason, on November 16th, there is a volatilizer for changing the position of the probe. Since the volatilizer changes the position of the probe by the motor, a power supply section 52 for controlling the motor and a power supply section 52 are provided. A switch 54 is provided for converting the voltage from the power supply section 52 into a pulse signal and supplying the pulse signal to the motor. The switch 54 is connected to the CPU 22. Control.
  • the polarizer for example, the one disclosed in Japanese Patent Application Laid-Open No. 2-125501 can be used.
  • a single satellite transmits a plurality of radio waves of different frequencies to use when determining the azimuth based on the ROM data.
  • a selection signal is supplied to the tuner 18 so that the signal demodulated by the tuner 18 is changed to any one of the above radio waves.
  • the CPU 22 can drive the actuator 20 in response to an operation from the operation unit 36.
  • the polar axis of the parabolic antenna is arranged parallel to the earth axis at the receiving point, and the parabolic antenna is centered on the declination axis and moves in the equator direction according to the receiving point. Adjust the elevation angle so that the antenna 10 faces.
  • the azimuth angle at which the Labola antenna 10 can be turned to the east and the azimuth angle at which it can be turned to the west 3 6 Is set to CPU 22 (step S 2).
  • the above-mentioned rain azimuth angle is an angle at which the parabolic antenna 10 cannot be rotated further to the east and west due to the structure of Actu Yue 20/20. is there .
  • the parabolic antenna 10 is actually turned (step S4).
  • the number of pulses generated by the pulse generator 34 is counted from the position where the parabolic antenna is directed to the west, and the number of pulses that can be received to the west is determined. The number of counts when heading and the number of headings when heading to the most eastern receivable satellite are noted.
  • step S6 calculate the rotation i for aiming the bora antenna 10 (step S6). This calculation is performed, for example, as follows.
  • the number of pulses generated by the pulse generator 34 corresponding to the most receivable satellite on the west is WDP
  • the number of pulses generated by the pulse generator 34 corresponding to the receivable most eastern satellite is The number of generated pulses
  • the ROM data of the receivable most western satellite is WRC
  • the ROM data of the receivable most eastern satellite is ERC
  • the receivable most western satellite is Assuming that the ROM data of the second satellite is W2ERC, this second satellite is received at this reception point.
  • the number of pulses for communication W2DP is
  • W2DP WDP + (2ERC-WRC) (WDP-EDP) / (WRC-ERC)
  • W3DP W2DP + (W3ERC-w2ERC) (WDP-EDP) / (RC-ERC)
  • the ROM data used in this case is selected from ROM 24 according to the mount of the noraboro antenna 10.
  • the parabolic antenna 10 is moved (step S8). Initially, this movement is from the state of reception of the most western satellite that can be received to the state of reception of the second satellite from the most receivable satellite. This is because the parabolic antenna 10 is rotated until the pulse signal is generated by the difference between W2DP and WDP from the reception state of the most receivable satellite on the west side. The pulse generated by the pulse generator 34 from the position facing the parabolic antenna to the west most is counted by the CPU 22. O
  • the CPU 22 is designed to receive radio waves in a frequency band (channel) that is not affected by scrambling, for example, among multiple radio waves.
  • a selection signal is supplied to 18 (step S10). In this state, it is determined whether or not a video signal is present (step S12). This determination is made based on whether or not the synchronization signal is detected by the synchronization signal detector 50.
  • Step S 12 If the video signal cannot be detected (No in step S12), the video signal is present if the channels are not changed in order. (Step S 1) o
  • step S16 If there is no video signal, is there a video signal before the pulse generator 34 on the east side rotates the parabolic antenna 10 to generate a predetermined number of pulses? Judgment is made (step S16).
  • the video signal does not exist, the video signal exists by the time the pulse generator 34 rotates the parabolic antenna 10 by the predetermined number of pulses to the west. It is determined whether or not it is (step S18).
  • step S8 is executed to receive the radio wave from the next satellite.
  • the above-mentioned predetermined number of pulses is the limit of the number of pulses at which the parabolic antenna 10 cannot be received even when the parabolic antenna 10 is pointed to the east or west. If it is considered that the parabolic antenna 10 will turn to the adjacent satellite if it is rotated until a new 12 pulses are generated, set it to 8 pulses.
  • step S12 When a video signal is found in step S12 (Yes in step S12) If a video signal is found while the channel is being changed in step S14 (step S14). If the answer to step S14 is yes, then if a video signal is found while moving east in step S16 (step S16) Or if a video signal is found while moving to the west in step S18 (step S18 is affirmative). E), and adjust the polarity (Step S20).
  • the drive of the motor for polarity adjustment is controlled by controlling the switch 50, and the position of the probe is controlled.
  • the AGC control signal supplied from the amplifier 42 to the CPU 42 gradually changes, the level of the signal from the satellite in the tuner 18 immediately changes.
  • the control state of the switch 48 at the time when the maximum value is obtained is stored. This memorized value is actually read out when this satellite is received, and the probe is set so that the signal level from the satellite in the above tuner 18 is the highest. It is used to create a condition that can
  • the parabolic antenna 10 is rotated to the west side until there is no video signal (step S26), and the pulse generated by the pulse generator 34 at that time is generated.
  • Count value B for example, when moving to the east side above, the count value A when the video signal is lost, etc.
  • step S32 a calculation is performed to direct the parabola antenna 10 to the next satellite (step S32). That is, according to step S22, the calculated value for directing the parabola antenna 10 to the calculated satellite above, and the parabola to the satellite adjacent to the east side of this astronomical star are calculated. The difference from the calculated value for pointing the antenna 10 is obtained, and this difference is added to the above stored value. Based on this added value, execute step S24, and similarly for other satellites, parabolic antenna 10 for the best reception at this reception point. The amount of tillage is calculated and stored in RAM 26. Since the RAM data is stored in the RAM 26 in this way, each movement amount of the parabolic antenna 10 for achieving the best reception state of each satellite is limited. Since it is obtained automatically, each radio wave from each satellite is received and adjusted manually to obtain the best reception condition to obtain the best reception condition. Nono, Compared to manually storing the moving amount of the Labora antenna 10 in the RAM 26, the labor is remarkably reduced.
  • the satellite to be received is designated by the operation of the operation unit 36 (step S34).
  • the CPU 22 reads out the RAM data of the designated satellite from the RAM 26 and reads the difference between the RAM data and the currently received satellite RAM data. Then, determine the direction of movement in which direction the parabolic antenna 10 should be directed in the west or east (step S36).
  • the relay 32 is controlled (step Step S3 8). Immediately, power is supplied.
  • the antenna 10 starts changing the direction, and the pulse generator 34 starts generating the pulse signal in response to the change.
  • This pulse signal is counted by CPU 22 (step S40). This count is incremented by one each time a pulse signal is generated from the state in which the RAM data corresponding to the satellite currently being received is preset. It depends on the increase or decrease. Whether to increase or decrease is determined based on the determination result of step S4.
  • step S42 It is determined whether the count value has been increased or decreased by a predetermined number (step S42).
  • the RAM data corresponding to the westernmost satellite that can be received at the receiving point is 5, and the RAM data corresponding to the eastern satellite that can be received at the receiving point is 30.5.
  • the launch position of the satellite corresponding to the above RAM data 0 is the 10th from the left end in Fig. 5 of the equator mark 44, and the easternmost Assuming that the position of the equatorial mark corresponding to this satellite is the 40th position from the left end, one equatorial mark 44 corresponds to three RAM data. Therefore, in this case, the predetermined number of counts is 10.
  • the predetermined number is the difference between the RAM data between the most western satellite and the most eastern satellite that can be received at the receiving point, and the difference between the positions of these satellites. It is determined by the number of corresponding equatorial marks 4 4.
  • the starting point of the display of the satellite mark 46 is the equatorial mark 44 corresponding to the launch position of the satellite located at the westernmost position. Therefore, in the above example, if the count value is increased by 10, the satellite mark 46 is shifted by one equatorial mark. You just have to move.
  • step S42 If the count value is increased or decreased by a predetermined number in step S42, the satellite map displayed at the position of the satellite currently being received is displayed. According to the increase or decrease of the count 46 to the count value, one is moved to the east or the west (step S44).
  • step S42 the force value is changed to the operation unit. It is determined whether the RAM data specified by 36 is equal to the RAM data overnight (step S46), and if they are equal (step S46 is YES). By controlling the relay 32, the power supply to the actuator unit 21 is stopped (step S48). If they are not the same (No at step S46), return to step S40, and the judgment at step S46 becomes yes. The loop of steps S40, S42, S44, S46 is repeated.
  • parabolic antenna 10 is facing the satellite specified by operation unit 36, and In the display section 40, the position of the designated satellite is displayed by a satellite mark 46.
  • the position of the satellite mark 46 is changed by changing the satellite to be received in this way, it is possible to know the launch position of the changed satellite. In addition, it is possible to immediately know how far away from the previously received satellite a new satellite has been received.
  • the polar mount is used as the mount of the antenna.
  • other mounts can be used.
  • the present invention can be similarly used in a mouthful. However, in that case, the map displayed on the display unit 40 must be changed.
  • the geostationary satellite receiver even when radio waves from a plurality of satellites are received at various reception points, the radio waves from each satellite at that location are transmitted. It can be automatically set to receive in the best condition.
  • the launch position of the satellite being received by this receiver can be displayed, and even if the receiving satellite is switched to a different one from before, it is switched off. The replaced satellite can be displayed.

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)

Abstract

Dispositif servant à faire tourner une antenne parabolique (10) au moyen d'un actionneur (20) de sorte que des ondes électromagnétiques transmises par des satellites puissent être reçues par ladite antenne parabolique (10). Dans une mémoire ROM (24), sont stockées les données utilisées pour faire tourner l'antenne (10) de façon qu'il soit possible de recevoir les ondes électromagnétiques en un point de réception prédéterminé. Une unité centrale (22) fixe un point de réception différent de celui prédéterminé, lorsque l'antenne (10) est installée dans la position correspondant aux données stockées dans la mémoire ROM (24). L'antenne (10) est déplacée de cette position vers l'est et vers l'ouest, et un capteur de signal de synchronisation (50) détermine qu'un signal de synchronisation se trouvant dans le signal provenant d'un syntonisateur (18) disparaît. La position médiane entre les positions dans lesquelles le signal de synchronisation disparaît du côté est et du côté ouest est déterminée comme étant la meilleure position de réception de l'antenne (10) par rapport à chaque satellite, et les données relatives à cette position sont mises en mémoire dans une mémoire RAM (26). Lesdites données mises en mémoire dans la mémoire RAM (26) sont lues par une partie de man÷uvre (36), et selon ces données, la position de l'antenne (10) est modifiée. Selon cette modification de la position de l'antenne (10), la marque représentant le satellite se déplace sur l'orbite dudit satellite, ce qui est affiché sur un système d'affichage à cristaux liquides (40) en même temps que la carte de la zone de réception.
PCT/JP1992/001471 1991-11-11 1992-11-11 Dispositif pour la reception d'ondes transmises par un satellite geostationnaire Ceased WO1993010599A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/988,937 US5424750A (en) 1992-11-11 1992-11-11 Stationary satellite signal receiving device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32375291 1991-11-11
JP3/323752 1991-11-11

Publications (1)

Publication Number Publication Date
WO1993010599A1 true WO1993010599A1 (fr) 1993-05-27

Family

ID=18158229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/001471 Ceased WO1993010599A1 (fr) 1991-11-11 1992-11-11 Dispositif pour la reception d'ondes transmises par un satellite geostationnaire

Country Status (1)

Country Link
WO (1) WO1993010599A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61234631A (ja) * 1985-04-11 1986-10-18 Matsushita Electric Ind Co Ltd 放送衛星位置表示装置
JPS6269737A (ja) * 1985-09-24 1987-03-31 Toshiba Corp 衛星放送受信システム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61234631A (ja) * 1985-04-11 1986-10-18 Matsushita Electric Ind Co Ltd 放送衛星位置表示装置
JPS6269737A (ja) * 1985-09-24 1987-03-31 Toshiba Corp 衛星放送受信システム

Similar Documents

Publication Publication Date Title
US5983071A (en) Video receiver with automatic satellite antenna orientation
US5999139A (en) Two-axis satellite antenna mounting and tracking assembly
US5585804A (en) Method for automatically positioning a satellite dish antenna to satellites in a geosynchronous belt
EP0196607A2 (fr) Système de réception d'émissions par satellite
JPH09136699A (ja) 衛星の姿勢制御方法
JP6937178B2 (ja) 衛星捕捉装置および衛星捕捉方法
WO2006019290A1 (fr) Procédé d’installation d’une antenne de récepteur satellite sur un corps céleste, récepteur satellite et unite de commande pour un tel récepteur satellite
JP2006333068A (ja) 移動体端末用アンテナ追尾装置および移動体端末用アンテナ追尾方法
WO1993010599A1 (fr) Dispositif pour la reception d'ondes transmises par un satellite geostationnaire
GB2173643A (en) Automatically tracking satellite by receiving antenna
JP4222245B2 (ja) 移動体通信装置
US5424750A (en) Stationary satellite signal receiving device
JPH0669722A (ja) マルチビームアンテナ
JPS6022803A (ja) 衛星追尾空中線制御装置
JPWO1993010599A1 (ja) 静止衛星受信装置
JPH04268474A (ja) 衛星放送用アンテナ装置
JPH06204732A (ja) 衛星用アンテナ駆動装置
KR20020048496A (ko) 다중위성신호 이동 수신용 능동안테나 장치 및 추적방식
JPH08250920A (ja) テレビアンテナ自動方向変換装置
CA1252194A (fr) Dispositif et methode de poursuite automatique d'un satellite pour antenne receptrice
JPH10167195A (ja) 衛星の動作方法、中継方法および中継システム
JP2000068877A (ja) アンテナ設定装置
JP2502419B2 (ja) 衛星受信装置
JP6776005B2 (ja) 衛星捕捉制御装置および衛星捕捉制御方法
JPS63153925A (ja) 空中線姿勢制御装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US