JPS60102032A - Automatic control system for antenna direction - Google Patents
Automatic control system for antenna directionInfo
- Publication number
- JPS60102032A JPS60102032A JP21034883A JP21034883A JPS60102032A JP S60102032 A JPS60102032 A JP S60102032A JP 21034883 A JP21034883 A JP 21034883A JP 21034883 A JP21034883 A JP 21034883A JP S60102032 A JPS60102032 A JP S60102032A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- transmitting
- antennas
- receiving
- station
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
- H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明はマイクロ波移動中継の空中線自動方向制御方式
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna automatic direction control system for microwave mobile relays.
従来ヘリコプタ−等を用いたマイクロ波移動中継におい
て、基地局へ送信する送信空中線は移動局が広範囲に移
動するｆｃめ指向性のある全中線を使用することが困難
でおり、無指向性空中線ｆ：１史用していた。しかしな
がら無指向性空中線は空中線利得が低いために基地局と
移動局の距離を大きくとれず、高々数キロメートルから
十数キロメートルしか移動できなかった。Conventionally, in microwave mobile relay using helicopters, etc., it is difficult to use a directional antenna for the transmitting antenna to the base station because the mobile station moves over a wide range, so it is difficult to use an omnidirectional antenna. f:1 history was used. However, omnidirectional antennas have low antenna gain, so it is difficult to maintain a large distance between base stations and mobile stations, and they can only travel from a few kilometers to more than 10 kilometers at most.
又、移動カメラから基地局に送１ｄする場合は、（１）
地磁気を検出し空中線の方向を一足に保つ方法、（２）
ジャイロを用いて空中線の方向金−短に保つ方法が考え
られている。しかしながら地磁気を検出する方法は、鉄
製の金属や、他の強磁性体の物体が移動を中線の近くに
あると、検出制御が大きく狂うという重大な欠点がある
。史に又％ （１） 、（２）の方法共に、移動局と基
地局が比軟的近距離の場合には移動局が基地局に千竹し
゛Ｃ移動すると、送信空中線の方向制御が１當であって
も、移動局の送信空中線が基地局方向からずれるという
欠点がある。Also, when sending 1d from a mobile camera to a base station, (1)
How to detect the earth's magnetic field and keep the antenna in the same direction, (2)
A method is being considered that uses a gyro to keep the direction of the antenna short. However, the method of detecting geomagnetism has a serious drawback in that detection control will be greatly disrupted if a ferrous metal or other ferromagnetic object moves near the median line. Historically, in both methods (1) and (2), when the mobile station and base station are relatively close, when the mobile station moves towards the base station, the direction control of the transmitting antenna is Even so, there is a drawback that the transmitting antenna of the mobile station is deviated from the direction of the base station.
本発明の目的は、従来の欠点を除いて移動局がどこに移
動しても、常に基地局方向にある指向性送信空中線が使
用できる空中線自動方向制御方式を提供することである
。It is an object of the present invention to provide an antenna automatic direction control system that allows the use of a directional transmitting antenna that is always in the direction of a base station, no matter where the mobile station moves, without the drawbacks of the prior art.
本発明によれば、プログラム伝送用の送信装置と、少く
とも３（Ｉｉ￥１以上の送信空中線と、制御信号を受け
る受信装置と受信空中線とを移動局にもち；プログラム
受信装置と受信空中線と、制御信号を送出する送信装置
と、送信空中線とを基地局にもち；基地局から送出する
制御信号により移動局の少くとも３個以上の送信空中線
のうち現在発射中の空中線の一方もしくは両方へ１ケず
つ切り換えながら基地局の受信レベルを比較検出する行
程をくり返し最大受信レベルを与える送信空中線を検知
し、移動局がいかに移動しても、常に最良の受信レベル
が得られる送信空中線に切り換えることにより移動局か
ら基地局への受信波レベルが最良とすることができる空
中線自動方向制御方式が得られる。According to the present invention, a mobile station includes a transmitting device for program transmission, at least three (Ii ¥1 or more) transmitting antennas, a receiving device for receiving control signals, and a receiving antenna; , a base station has a transmitting device that transmits a control signal, and a transmitting antenna; a control signal transmitted from the base station is used to transmit one or both of the antennas currently being emitted among at least three or more transmitting antennas of the mobile station. The process of comparing and detecting the reception level of the base station while switching one by one is repeated to detect the transmitting antenna that provides the maximum reception level, and then switches to the transmitting antenna that always provides the best reception level no matter how the mobile station moves. This provides an antenna automatic direction control system that can optimize the received wave level from the mobile station to the base station.
本発明においては、受信レベルは送信側のアンテナが受
信アンテナと正対するとき最大となシ、角度のずれが大
きくなる程低下する。従って、幾つかの角度の異る送信
アンテナを切り換え゛Ｃ受信レベルを検出することによ
り最良方向にある送信アンテナを知ることができる。In the present invention, the reception level is at its maximum when the transmitting antenna directly faces the receiving antenna, and decreases as the angular deviation increases. Therefore, by switching between transmitting antennas at several different angles and detecting the C reception level, it is possible to know which transmitting antenna is in the best direction.
次に本発明の一実施例の図面を用いて本発明の詳細な説
明する。第１図は本発明の詳細な説明する図であシ、プ
ログラム伝送用送信機ｌ、プログラム伝送用アンテナ２
．プログラム伝送用受信アンテナ３．プログラム伝送用
受信機４．受信アンテナ方向制御及びコマンド信号送出
器５、及びコマンド信号送信機６．コマンド信号送信ア
ンテナ７、コマンド信号受信アンテナ８．コマンド信号
受信機９．プログラム伝送用受信アンテナ回転装置１０
．プログラム伝送用送信アンテナ切換装置１１、及び受
信アンテナ方向調整用受信機１２を示す。Next, the present invention will be described in detail using drawings of an embodiment of the present invention. FIG. 1 is a diagram for explaining the present invention in detail, including a program transmission transmitter 1, a program transmission antenna 2, and a program transmission antenna 2.
．． Receiving antenna for program transmission 3. Receiver for program transmission 4. receiving antenna direction control and command signal transmitter 5; and command signal transmitter 6. Command signal transmitting antenna 7, command signal receiving antenna 8. Command signal receiver9. Receiving antenna rotation device 10 for program transmission
．． A transmitting antenna switching device 11 for transmitting a program and a receiver 12 for adjusting the receiving antenna direction are shown.
本実施例では、第２図に示す様にプログラム送信用アン
テナ２は放射状に８個で構成され、８個のアンテナの指
向性は３６０°全方向をカバーしているものとする。本
方式を使用するにあたシ、まず８ケのプログラム伝送用
送信アンテナのうちプログラム伝送用受信アンテナ方向
に向いているものに初期動作設定させる。初期設定が終
了すると、本発明による自動方向調整に制御を切り換え
る。In this embodiment, as shown in FIG. 2, the program transmitting antenna 2 is composed of eight radial antennas, and the directivity of the eight antennas covers all directions of 360 degrees. To use this system, first, among the eight program transmission transmitting antennas, the one facing toward the program transmission receiving antenna is set for initial operation. When the initial setting is completed, control is switched to automatic direction adjustment according to the present invention.
基地局よりコマンド信号により移動局の送信アンテナを
１つ隣の送信アンテナに切換える。この時の基地局にお
ける受信レベルを前の状態と比較する。比較の結果、前
の状態より受信レベルが上昇すれはこの送信アンテナに
よシ送信を行う。切り換えたことにより逆に受信レベル
が低下した場合には、一度元のアンテナに切換だ後、先
程と反対側の元と１つ隣の送信アンテナに切換え、同様
の比較を行う。以後同様の工程をくり返す。以上の様に
現在送信に使用している送信アンテナの受信レベルとこ
の送信アンテナの両隣のうち１方もしくは両方の送信ア
ンテナの受信レベルとを常に比観制御を行うことにより
、移動局の送信アンテナは最良の受信レベルが得られる
方向を向いている送信アンテナを使用できる。The transmitting antenna of the mobile station is switched to the next adjacent transmitting antenna by a command signal from the base station. The reception level at the base station at this time is compared with the previous state. As a result of the comparison, if the reception level is higher than the previous state, transmission is performed using this transmitting antenna. If the reception level decreases as a result of the switching, the antenna is switched once to the original antenna, and then to the transmitting antenna on the opposite side, one next to the original, and a similar comparison is made. Thereafter, repeat the same process. As described above, by constantly performing comparative control between the receiving level of the transmitting antenna currently used for transmission and the receiving level of one or both of the transmitting antennas on both sides of this transmitting antenna, the mobile station's transmitting antenna can use transmit antennas that are oriented in the direction that provides the best reception level.
一方受信アンテナは無指向性アンテナもしくは追尾用ア
ンテナが主に使用される。後者は主アンテナと主アンテ
ナの上下左右に配置された４ケの副アンテナにより構成
され、主アンテナは伝送信号の受信と共に前記の移動局
の送信アンテナ方向制御用受信レベル検出に使用される
。４ケの副アンテナは受信アンテナ方向調整用受信機１
２に接続され、受信波の方向を各々の副アンテナの受信
レベルの比較を行うことにより検出する。On the other hand, as a receiving antenna, an omnidirectional antenna or a tracking antenna is mainly used. The latter is composed of a main antenna and four sub-antennas arranged above, below, left and right of the main antenna, and the main antenna is used for receiving transmission signals as well as detecting the reception level for controlling the direction of the transmitting antenna of the mobile station. The 4 auxiliary antennas are receiver 1 for adjusting the receiving antenna direction.
2, and the direction of the received wave is detected by comparing the reception levels of each sub-antenna.
この検出信号は、制御機５により受信アンテナの方向調
整に使用され受信アンテナ回転装置１０により受信アン
テナを常に移動局に向ける。但し追尾用アンテナを使用
する場合には送信装置の送信アンテナの切換えと受信装
置のアンテナの切換。This detection signal is used by the controller 5 to adjust the direction of the receiving antenna, and the receiving antenna rotating device 10 always directs the receiving antenna toward the mobile station. However, when using a tracking antenna, you must switch the transmitting antenna of the transmitting device and the antenna of the receiving device.
追趙の動きのいずれか一方のみの制御が働くような誤動
作防止用制御信号全送信装置と受信装置の制御信号に重
畳させる必要がある。It is necessary to superimpose a control signal for preventing malfunctions on the control signals of all transmitting devices and receiving devices so that only one of the following motions is controlled.
本発明は以上説明したように、移動局に受信局との方向
制御機能を持たせることにより移動局に利得の大きい指
向性空中線が使用できる受信局での受信レベルが壇加し
、そのため移動局と受信局の距離を大きくとれかつ指向
空中線の指向特性によりマルチパスのすくないプログラ
ム中継を行うことが出来る。As explained above, the present invention provides the mobile station with a direction control function with respect to the receiving station, thereby increasing the reception level at the receiving station, which allows the mobile station to use a directional antenna with a large gain. By increasing the distance between the antenna and the receiving station, and by using the directional characteristics of the directional antenna, it is possible to perform program relay with less multipath.
第１図は本発明の一実施例を示したブロック図、第２図
は笑流側の中のプログラム送信用送信アンテナの評細図
。
カｌ閃
力２国FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a detailed diagram of a transmitting antenna for transmitting a program on the streaming side. Cal Senryoku 2 countries
Claims (1)
、送信製置、側割信号の受信用アンテナ及び受信波ｆを
待ち、固定局が通信用自動方向制御追尾アンテナ、受信
装置、制御用送信アンテナ及び制御用送信装置をもち、
前記制御信号により前記移動局の３個以上の送信アンテ
ナの内発射中のアンテナの両隣のアンテナへ切り換えて
ゆき、前記受信局の受信波レベルを比較検出する行Ｓを
くり返すことにより送信アンテナを選定すること％似と
する空中線自動方向制御方式。The mobile station side installs three or more transmitting antennas for program communication, transmitting equipment, antennas for receiving side split signals, and waits for the received wave f, and the fixed station installs an automatic direction control tracking antenna for communication, a receiving device, and a transmitting antenna for control. and a control transmitter,
Using the control signal, the transmitting antennas are switched to the antennas on both sides of the transmitting antenna among the three or more transmitting antennas of the mobile station, and the transmitting antenna is switched by repeating the process of comparing and detecting the received wave level of the receiving station. Select % similar antenna automatic direction control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21034883A JPS60102032A (en) | 1983-11-09 | 1983-11-09 | Automatic control system for antenna direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21034883A JPS60102032A (en) | 1983-11-09 | 1983-11-09 | Automatic control system for antenna direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60102032A true JPS60102032A (en) | 1985-06-06 |
Family
ID=16587908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21034883A Pending JPS60102032A (en) | 1983-11-09 | 1983-11-09 | Automatic control system for antenna direction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60102032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0969610A2 (en) * | 1998-07-02 | 2000-01-05 | Lucent Technologies Inc. | Code division multiple access communication with enhanced multipath diversity |
| JP2022143716A (en) * | 2021-03-18 | 2022-10-03 | 株式会社光電製作所 | Receiving device, receiving method, and program |
-
1983
- 1983-11-09 JP JP21034883A patent/JPS60102032A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0969610A2 (en) * | 1998-07-02 | 2000-01-05 | Lucent Technologies Inc. | Code division multiple access communication with enhanced multipath diversity |
| EP0969610A3 (en) * | 1998-07-02 | 2004-06-16 | Lucent Technologies Inc. | Code division multiple access communication with enhanced multipath diversity |
| JP2022143716A (en) * | 2021-03-18 | 2022-10-03 | 株式会社光電製作所 | Receiving device, receiving method, and program |
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