JPS595703A - Adaptive antenna - Google Patents
Adaptive antennaInfo
- Publication number
- JPS595703A JPS595703A JP57112564A JP11256482A JPS595703A JP S595703 A JPS595703 A JP S595703A JP 57112564 A JP57112564 A JP 57112564A JP 11256482 A JP11256482 A JP 11256482A JP S595703 A JPS595703 A JP S595703A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- signal
- circuit
- adaptive antenna
- desired signal
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
- H01Q3/2611—Means for null steering; Adaptive interference nulling
- H01Q3/2617—Array of identical elements
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、同門の電波環境礪二適応しなが′ら、自動的
に妨害波を抑圧するアダプティブアンテナ１関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an adaptive antenna 1 that automatically suppresses interference waves while adapting to various radio wave environments.
パワーインバージョンアルゴリズム（１ζ、Ｔ。 Power inversion algorithm (1ζ, T.
Ｃｏｍｐｔｏｎ ＩＪｒ 、Ｔｈｅ Ｐｏｗｅｒ Ｉｎ
ｖｅｒｓｉｏｎ ＡｄａｐｔｉｖｅＡｒｒｙ ： Ｃｏ
ｎｃｅｐｔ ａｎｄ Ｐｅｒｆｏｒｍａｎｃｅ”＋ Ｉ
ＥＥＥＴｒａｎｓ。Compton I Jr., The Power In
version AdaptiveArry: Co
cept and Performance”＋I
EEE Trans.
Ｖｏｌ ＡＥＳ −１５、Ｎｏ ６ 、 ｐｐ８０３
、 Ｎｏｖ、 １９７９）を用いたアダプティブアンテ
ナ（以（＆ＰＩＡＡとｌＨ３す。Vol AES-15, No 6, pp803
, Nov., 1979).
）は、一般（二所望信号の到来方向が未知の通信系に適
用されるアダプティブアンテナの一つで、その構成が谷
易なことη為ら注目されている。）’ＩＡＡは、第１図
に示すようＣ二、Ｎ個のアンテナ系子（１）と、アンテ
ナ素子（１）で費佃した信号（二複素重みｌ−ｒけをす
るウェイト回路（２）と、各ウェイト回路（２）からの
出力１ｄ号を合成する曾成器（３）と１合成器ＩＪＩの
出力信号と谷アンテナ素子１１）で受信した信号の相１
ｍＹＪ４１、パワーインバージョンアルコ゛リズム（二
より、ウェイト回路（２）の複素ムみを決屋する１ｄ号
処理回路（４）から構成される装
ここで、Ｎ ｌｒｊのアンテナ素子（１）から構成され
るＰＩＡＡｖ動作に関して検１する。１）ＩＡＡがド個
のアンテナ素子（１）から’ｃｔ’ｔ Ｊ戊されでいる
」助合（二は、（Ｎ−１）個の狭帯１威信号を抑圧する
能力を肩°−丈る。) is one of the general adaptive antennas applied to communication systems where the direction of arrival of the desired signal is unknown, and is attracting attention because its configuration is easy. As shown in the figure, there are C2, N antenna system elements (1), a weight circuit (2) that carries out two complex weights (l−r), and each weight circuit (2). The phase 1 of the signal received by the output signal of the 1 synthesizer IJI and the valley antenna element 11).
mYJ41, a power inversion algorithm (from the second perspective, a system consisting of a No. 1d processing circuit (4) that eliminates the complex load of the weight circuit (2); here, it consists of an N lrj antenna element (1) Check the PIAAv operation.1) The IAA is 'ct't J omitted from the antenna elements (1), and the (2) suppresses the (N-1) narrow band 1 signal. The ability to do things is impressive.
この口し力は、一般にアダプティブアンテナ１二おいて
、自由１底と言わＡしる。この自由度をアンチナノぐタ
ーンの観点から考えて峠・ると、最大（ｔｑ−ｔ）個の
１η号方向に零点を形１ａすることがＤｒ ＃ｊじであ
ることを示す。今、１波の所望信号と１波の妨ｇｖが・
存在する電波環境下ン考えてみると、Ｎが３以上の場合
（二は、ＰＩＡＡは妨害波を抑圧ず心はかシ゛ごなく、
所望１ば号までも抑圧してし゛まうとい９里人な欠点１
する。このことは、アンチナノくターン（二おいて、妨
′害波方向及び所望信号方向（二零点を形ｌ戎している
こと（二対応する。また１ヅ［望ＩＮ−’！のみが存在
する川波環境（二おいては、１）ＩＡＡは（Ｎ−１）個
の自由度を用いて所望Ｉ！１号を抑出し−Ｃしまう。This mouth force is generally referred to as a free bottom in the adaptive antenna 12. If we consider this degree of freedom from the perspective of an anti-nano turn, we will show that Dr #j is the same as creating a maximum of (tq-t) zero points in the 1η direction. Now, one wave of desired signal and one wave of jamming gv are...
Considering the existing radio wave environment, if N is 3 or more (secondly, the PIAA does not suppress interference waves and the mind remains unchanged,
Suppressing even the desired number 1 is a serious drawback 1
do. This means that the direction of the interference wave and the direction of the desired signal (two correspond to the two zero points). In the river wave environment (2, 1), IAA uses (N-1) degrees of freedom to suppress the desired I!1 and put away -C.
このＪ：う（二、ＰＩＡＡは、所望信号と妨毎波を離別
する嶺能を全く櫓し−〔いないため（二、その出力端に
おけるＳｉ４比を劣化させ、ＪＩＩｌ信糸）゛二多太な
る損失を与える。This J:U (2. Because the PIAA does not have any power to separate the desired signal and the interference wave (2. It degrades the Si4 ratio at its output end, JIIl signal). cause a loss.
本発明は、前１己従来装置の欠点を改良しンこものでＰ
ＩＡＡの出力端（二おけるＳＮ比ン同上し、乱品賀の通
信を町ロヒ（二するアダグチイブアンテナを提供するこ
とを目的とする。The present invention improves the shortcomings of the conventional device.
The purpose is to provide an adaptive antenna that has the same S/N ratio at the output end of the IAA (as above), and that connects the communications of Ranshinaga to the town of Rohi (second).
即ち、本発明は、合成器の出力端の信号（″、おける所
望信号成分またはＳＮ比を検出し、その検出レベルが最
大（−なるようし、■からＮ−１ｖアダプティブアンテ
ナの自由度を選択するコントロール部と選択された自由
ｋを実ｖＡ（二股尼するスイッチ回路とを具備すること
を特徴とするパワインバージョンアルゴリズムを用いた
゛アダプティブアンテナを構成するものである。That is, the present invention detects the desired signal component or SN ratio in the signal ('') at the output end of the synthesizer, and selects the degree of freedom of the N-1v adaptive antenna from ■ so that the detection level becomes the maximum (-). This constitutes an ``adaptive antenna'' using a power version algorithm, which is characterized by comprising a control unit for controlling the selected free k and a switch circuit for converting the selected free k into two branches.
本発明のアダプティブアンテナは、妨害波の数及びその
１８号レベルが複雑（二変化する奄波塊現下（−おいて
、アダプティブアンテナの自由Ｖを選択し−（：、７Ｊ
ｉ望伯号方向にアンテナパターンの４点を形成すること
を回避することによシ、 ７９ｒ望１１号の損失を改善
し、ＳＮ比を向上させる効果を４１する。In the adaptive antenna of the present invention, the number of interference waves and their No. 18 level are complex (under the changing Amami block current (-), the freedom V of the adaptive antenna is selected -(:, 7J
By avoiding forming four points of the antenna pattern in the direction of the 79r 11, the loss of the 79r 11 can be improved and the effect of improving the S/N ratio can be increased by 41.
以下図面を参照して、不発明の一実施例を計画に説明す
る。An embodiment of the invention will be described below with reference to the drawings.
第２図は、本発明の一実施例装置の槻略祠成図をノＪく
ず。FIG. 2 is a schematic diagram of the construction of a device according to an embodiment of the present invention.
第２図においで、アンテナ素子Ｕ、ウェイト、回路（１
２１、合成器（１３１，４Ｍ 号処理回に６ （１４）
ハ、ｒｊｉＪ ｈ＊ Ｋ来しリで説明した自答と同前
Ｃ必る。ｕ：ｙは、スイッチ回路で、アンテナ素子（（
Ｉ）で受信した・１邑号をウェイト回路μ４及び（Ｍ号
処理回路ｔｔ４１−二供給するか否かを選択する。Ｑ１
０は、コントロール部で、合成器ＯＪの出力端のｍ号に
おける所望信号成分をノイルタ号によシ検出し、その検
出したレベルが服大Ｃ二なるように、スイッチ回路Ｕ四
のＯＮ −（Ｊ１ｉ’Ｆ状態の組合せを遂次的（＝求め
ていく。このよう−、コントロール部四〇市制御のもと
（二、スイッチ回ｒ−４ｕ５１のｏｒｉ−ｏｉｒｉｒ状
態の組合せを遂次的（二求めていくこと（二よシ、４１
ｓな小波環境におい−ｃ、ｔｐｒ望１６号成分を最大（
二するアダグチイブアンテナの自由度を遠足１゛ること
がＯ」能となり、Ｓｉ４比の向上が達成され、絶大なる
効果を発揮する。In Figure 2, the antenna element U, weight, circuit (1
21, Synthesizer (131, 6 in 4M processing time (14)
Ha, rjiJ h* The self-answer explained in the K-come-ri and the same C must be included. u:y is a switch circuit, and antenna element ((
Select whether or not to supply the ・1 signal received in I) to the wait circuit μ4 and (M signal processing circuit tt41-2.Q1
0 is a control unit that detects the desired signal component at the output end of the synthesizer OJ using the Noirta signal, and turns on the switch circuit U4 so that the detected level becomes C2. In this way, under the control of the control section 40 city, the combinations of the ori-oirir states of switch circuit r-4u51 are sequentially (= determined). What to seek (Niyoshi, 41)
In a small wave environment -c, the tpr No. 16 component is maximized (
It becomes possible to increase the degree of freedom of the second adaptive antenna to one degree, and the Si4 ratio is improved, resulting in a tremendous effect.
本発明は、上記の実施例に限尼さＪＬるものではない。The present invention is not limited to the above embodiments.
■えは、スイッチ回路を、ウェイト回路と合成器の間ま
たはアンテナ素子と信号処理回路の間゛またはウェイト
回路と信号処幼（回路の間（二仲人しても、同様の効果
を得ることができる。゛また、コントロール部において
は、 ＳＮ比を検出しでも・よい。要するに本屍明は、
その資旨な逸脱しない範囲で棟Ａ変形して実施すること
ができる。■The same effect can be obtained even if the switch circuit is placed between the weight circuit and the combiner, between the antenna element and the signal processing circuit, or between the weight circuit and the signal processing circuit (two matchmakers). It is possible. ゛In addition, the SN ratio may be detected in the control section. In short, the present corpse is
Building A can be modified and implemented without departing from its purpose.
第１図は、従来例の概略構成図、弗２図は本発明８一実
施例の概略構成図である。FIG. 1 is a schematic configuration diagram of a conventional example, and FIG. 2 is a schematic configuration diagram of an 81st embodiment of the present invention.
Claims (1)
（ｆｉ号に複素重み付けを−４−るウェイト回路と、こ
のウェイト回路の出力個号を合成する合成器と、前記ア
ンテナ素子で受信した信号と前記合成器の出力端におけ
る信号との相関を取シ、パワーインバージョンアルゴリ
ズムにより ＋ｔ＋１ｎじウェイト回、路の複累嵐みを
決定する信号処理回路を具備したアダグチイブアンテナ
において、ＭＩＪ記合成器の出力端の４８号（二おける
所望信号成分またはＳＮ比を検出し、その検出レベルが
最大４二なるよう４二、＝ｊｓ ｉｉ己アダプティブア
ンテナの自由１１（を逐次的礪二求めいくコントロール
部と、このコントロール部のｔ［＋Ｉ Ｎのもとにｎｕ
’ｙ自山１皮を設置するスイッチ回路から構成される
ことを特徴とするアダプティブアンテナ。A weight circuit that applies complex weighting to the signal fi received by this antenna element a, a combiner that combines the output signals of this weight circuit, and a signal received by the antenna element. and the signal at the output end of the combiner, and performs the MIJ combination using a power inversion algorithm in an adaptive antenna equipped with a +t+1n weight circuit and a signal processing circuit that determines the compound storminess of the path. Detects the desired signal component or SN ratio at the output end of the antenna, and controls the adaptive antenna's freedom 11 (sequentially) so that the detection level reaches a maximum of 42. and nu under t[+I N of this control section.
1. An adaptive antenna characterized by comprising a switch circuit in which an antenna is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57112564A JPS595703A (en) | 1982-07-01 | 1982-07-01 | Adaptive antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57112564A JPS595703A (en) | 1982-07-01 | 1982-07-01 | Adaptive antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS595703A true JPS595703A (en) | 1984-01-12 |
| JPH0420281B2 JPH0420281B2 (en) | 1992-04-02 |
Family
ID=14589835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57112564A Granted JPS595703A (en) | 1982-07-01 | 1982-07-01 | Adaptive antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204102A (en) * | 1984-03-28 | 1985-10-15 | Toyo Commun Equip Co Ltd | Control system of adaptive antenna |
-
1982
- 1982-07-01 JP JP57112564A patent/JPS595703A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204102A (en) * | 1984-03-28 | 1985-10-15 | Toyo Commun Equip Co Ltd | Control system of adaptive antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0420281B2 (en) | 1992-04-02 |
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