JPS59154831A - Communication satellite broadcast system - Google Patents

Communication satellite broadcast system

Info

Publication number
JPS59154831A
JPS59154831A JP2975783A JP2975783A JPS59154831A JP S59154831 A JPS59154831 A JP S59154831A JP 2975783 A JP2975783 A JP 2975783A JP 2975783 A JP2975783 A JP 2975783A JP S59154831 A JPS59154831 A JP S59154831A
Authority
JP
Japan
Prior art keywords
station device
slave station
satellite
master station
communication satellite
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.)
Pending
Application number
JP2975783A
Other languages
Japanese (ja)
Inventor
Sanae Itsukida
五木田　早苗
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2975783A priority Critical patent/JPS59154831A/en
Publication of JPS59154831A publication Critical patent/JPS59154831A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/74—Wireless systems of satellite networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To simplify the constitution of a slave station by connecting a slave station device and a master statin device by one line so as to apply tracking information to the slave station. CONSTITUTION:The master station device 2 makes communication with the slave station device 3 via a communication satellite 1. The master station device 3 computes the orbit of the communication satellite 1 and decides the satellite tracking information (direction of antenna) of the slave station device 3, and this information is transmitted to the slave station device via a conventional telephone line or exclusive line 4.

Description

【発明の詳細な説明】 本発明はテレビ放送などを通信衛星を用いて行なう通信
衛星放送方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a communication satellite broadcasting system in which television broadcasting and the like are performed using communication satellites.

従来、移動する通信衛星を用いてテレビ放送を行なうに
は電波を送出する親局装置、及び通信衛星からの電波を
受信する子局装置それぞれに衛星追尾機能を有する必要
がある。かかる場合の子局装置では親局装置と同等の追
尾機能を実現する分析装置が必要であり、各子局装置が
複数ある場合には親局装置との同期制御とあわせ、装置
そのものが複雑になる。Conventionally, in order to perform television broadcasting using a moving communication satellite, it is necessary that a master station device that transmits radio waves and a slave station device that receives radio waves from the communication satellite each have a satellite tracking function. In such a case, the slave station device requires an analysis device that achieves the same tracking function as the master station device, and if there are multiple slave station devices, the device itself becomes complex due to synchronization control with the master station device. Become.

本発明の目的は衛星追尾機能を有する親局装置と追尾機
能を有しない子局装置とを１本の回線で接続することに
より上記欠点を解決し、かかる子局装置の構成及び機能
を簡略化した通信衛星放送方式を提供することにある。The purpose of the present invention is to solve the above-mentioned drawbacks by connecting a master station device with a satellite tracking function and a slave station device without a tracking function through a single line, and to simplify the configuration and functions of such a slave station device. The objective is to provide a communications satellite broadcasting system that is

本発明の通信衛星放送方式においては、子局装置に追尾
機能を持たせないようにすることにあり、そのために衛
星追尾機能を有する親局装置と追尾機能を有しない子局
装置とを１本の回線で接続し、前記親局装置から電波を
衛星経由で前記子局装置に送出する際、前記親局装置の
アンテナ制御とともに親局装置から子局装置の衛星追尾
情報を前記回線を介して送出し、親局からの制御のみに
より電波の送受信を行なうことを特徴としている。In the communication satellite broadcasting system of the present invention, the slave station device is not provided with a tracking function, and for this purpose, one master station device has a satellite tracking function and one slave station device does not have a tracking function. When transmitting radio waves from the master station device to the slave station device via a satellite, the master station device transmits satellite tracking information of the slave station device via the line as well as antenna control of the master station device. It is characterized by transmitting and receiving radio waves only under control from the master station.

以下、図面にｔり従来及びこの発明の通信衛星放送方式
の一例を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the conventional communication satellite broadcasting system and the present invention will be explained below with reference to the drawings.

第１図は従来の通信方式を説明する中継概略図で、移動
する通信術Ｍ１を介し、親局装置２と子局装置３との間
で送受信を行なう。この場合、子局装ｆ３には衛星追尾
情報を有し、親局装置２との同期合わせが必要である。FIG. 1 is a relay schematic diagram illustrating a conventional communication system, in which transmission and reception are performed between a master station device 2 and a slave station device 3 via a moving communication system M1. In this case, the slave station device f3 has satellite tracking information and needs to be synchronized with the master station device 2.

第２図は、この発明の一実施例を示した方式図であり、
親局装置２は通信衛星を介し子局装置３との通信を行な
う。その際、子局装置３は通信衛星１に対するアンテナ
の方向を設定するが、この衛星追尾情報は一般の電話口
ｍまたは専用線でもよいが、１本の回線を介して親局装
＃、２から送出する。すなわち親局装置２は通信衛星の
軌道を計算し、子局装置３のアンテナ方向を決定する。FIG. 2 is a schematic diagram showing an embodiment of the present invention,
The master station device 2 communicates with the slave station device 3 via a communication satellite. At this time, the slave station device 3 sets the direction of the antenna with respect to the communication satellite 1, but this satellite tracking information is sent to the master station #, 2 through a single line, although it may be a general telephone line or a dedicated line. Send from. That is, the master station device 2 calculates the orbit of the communication satellite and determines the antenna direction of the slave station device 3.

かかる方法によれば、親局、子局装置間の同期あわせも
簡単になるため子局装置３の構成及び機能が簡略化され
る。なお、親局装置２は子局装置の追尾機能情報を作成
する分だけ複雑になるが、システム全体の装置は経済化
される。According to such a method, synchronization between the master station and the slave station device becomes easy, so that the configuration and functions of the slave station device 3 are simplified. Note that although the master station device 2 becomes more complex due to the creation of tracking function information for the slave station devices, the cost of the entire system can be reduced.

以上、この発明の実施例について説明したが、この発明
によれば、子局装置が複数存在しても親局装置との間に
それぞれ１本の回線を接続するだけで移動通信衛星の追
尾を行い情報の送受信が可能になり、且つきわめて経済
的な通信衛星放送方式が実現できる。The embodiments of the present invention have been described above. According to the present invention, even if there are multiple slave station devices, tracking of a mobile communication satellite is possible by simply connecting one line between each slave station device and the master station device. This makes it possible to transmit and receive information, and to realize an extremely economical communications satellite broadcasting system.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の放送中継方式を示す方式図、第２図は本
発明の一実施例を示す方式図である。FIG. 1 is a system diagram showing a conventional broadcast relay system, and FIG. 2 is a system diagram showing an embodiment of the present invention.

Claims (1)

【特許請求の範囲】[Claims] 衛・１追尾機能を有する親局装置と追尾機能を有しない
子局装置とを１本の回線で接続し、前記親局装置から電
波を衛星経由で前記子局装置に送出する際、前記親１局
装置のアンテナ制御とともに親局装置から子局装置の衛
星追尾情報を前記回線を介して送出し、親局からの制御
のみにより電波の送受信を行なうことを特徴とする通信
衛星放送方式。When a master station device with a tracking function and a slave station device without a tracking function are connected via one line, and radio waves are sent from the master station device to the slave station device via a satellite, the parent station device A communication satellite broadcasting system characterized in that, together with antenna control of one station device, satellite tracking information of a slave station device is transmitted from a master station device via the line, and radio waves are transmitted and received only under control from the master station.
JP2975783A 1983-02-24 1983-02-24 Communication satellite broadcast system Pending JPS59154831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2975783A JPS59154831A (en) 1983-02-24 1983-02-24 Communication satellite broadcast system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2975783A JPS59154831A (en) 1983-02-24 1983-02-24 Communication satellite broadcast system

Publications (1)

Publication Number Publication Date
JPS59154831A true JPS59154831A (en) 1984-09-03

Family

ID=12284946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2975783A Pending JPS59154831A (en) 1983-02-24 1983-02-24 Communication satellite broadcast system

Country Status (1)

Country Link
JP (1) JPS59154831A (en)

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