JPH11125670A - Transmitter/receiver - Google Patents
Transmitter/receiverInfo
- Publication number
- JPH11125670A JPH11125670A JP9288406A JP28840697A JPH11125670A JP H11125670 A JPH11125670 A JP H11125670A JP 9288406 A JP9288406 A JP 9288406A JP 28840697 A JP28840697 A JP 28840697A JP H11125670 A JPH11125670 A JP H11125670A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- phase shifter
- phase
- signal
- transmitter
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 81
- 238000012545 processing Methods 0.000 claims abstract description 6
- 230000003044 adaptive effect Effects 0.000 claims description 31
- 230000005684 electric field Effects 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
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- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、通信、レーダ等の
電波機器における干渉波抑圧手段を備えた送受信装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception apparatus provided with interference wave suppression means in radio equipment such as communications and radar.
【０００２】[0002]
【従来の技術】従来の技術として、図１１は、例えば、
「レーダ応用のための同時送受信技術について」、阿
部、米倉、渡辺、平沢、信学技報、ＳＡＮＥ９４−５
８，１９９４に示された干渉波抑圧手段を備えた送受信
装置のブロック図である。図において、１は送信信号発
生手段、２は送信機、２４は送信アンテナ、１４は受信
のための複数の素子アンテナ、１５は複数の受信機、１
６は複数のＡ／Ｄ変換器、１７は複数の乗算器、１８は
複数の減算器、１９は加算器である。2. Description of the Related Art As a conventional technique, FIG.
"Simultaneous transmission / reception technology for radar applications", Abe, Yonekura, Watanabe, Hirasawa, IEICE Technical Report, SANE94-5
FIG. 8 is a block diagram of a transmission / reception device including the interference wave suppression unit shown in FIG. In the figure, 1 is a transmission signal generating means, 2 is a transmitter, 24 is a transmission antenna, 14 is a plurality of element antennas for reception, 15 is a plurality of receivers,
6 is a plurality of A / D converters, 17 is a plurality of multipliers, 18 is a plurality of subtracters, and 19 is an adder.
【０００３】次に、上記構成の装置の動作について説明
する。送信信号発生手段によって発生した送信信号は、
送信機２にて増幅され、送信アンテナ２４を通して空間
に放射される。放射された送信波の一部は、干渉波とな
って受信用の複数の素子アンテナ１４で受信される。各
素子アンテナでは、干渉波とともに所望波を受信し、各
素子アンテナに接続されたそれぞれの受信機１５で周波
数変換された後、各受信機に接続されたそれぞれのＡ／
Ｄ変換器１６にてＡ／Ｄ変換される。素子アンテナ＃１
〜＃Ｎで受信された信号のＡ／Ｄ変換後の出力信号が、
それぞれ入力される減算器１８に接続されたそれぞれの
乗算器１７において、素子アンテナ＃０で受信した信号
のＡ／Ｄ変換後の出力信号は、素子アンテナ＃１〜＃Ｎ
で受信された信号のＡ／Ｄ変換後のそれぞれの出力信号
と等しくなるように位相と振幅が補正され、それぞれ減
算器で素子アンテナ＃１〜＃Ｎで受信された信号のＡ／
Ｄ変換後の出力信号から差し引かれることにより、干渉
波は抑圧される。一方、所望波については、位相と振幅
が乗算器１７による位相と振幅の補正で、素子アンテナ
＃０で受信した信号のＡ／Ｄ変換後の出力信号と素子ア
ンテナ＃１〜＃Ｎで受信された信号のＡ／Ｄ変換後の出
力信号が等しくならないので、干渉波のように抑圧され
ない。それぞれの減算器１８の出力信号は加算器１９で
加算され、最終的に出力信号を得る。Next, the operation of the apparatus having the above configuration will be described. The transmission signal generated by the transmission signal generation means is
It is amplified by the transmitter 2 and radiated into space through the transmission antenna 24. A part of the emitted transmission wave becomes an interference wave and is received by the plurality of receiving element antennas 14. Each element antenna receives a desired wave together with an interference wave, and the frequency is converted by each receiver 15 connected to each element antenna.
A / D conversion is performed by the D converter 16. Element antenna # 1
The output signal after A / D conversion of the signal received at #N is
In each of the multipliers 17 connected to the subtracters 18 that are input, the output signals after the A / D conversion of the signals received by the element antenna # 0 are output from the element antennas # 1 to #N.
The phase and the amplitude are corrected so as to be equal to the respective output signals after the A / D conversion of the signals received by the A / D converters.
The interference wave is suppressed by being subtracted from the output signal after the D conversion. On the other hand, as for the desired wave, the phase and amplitude are corrected by the multiplier 17 for the phase and amplitude, and the output signal after the A / D conversion of the signal received by the element antenna # 0 is received by the element antennas # 1 to #N. Since the output signals of the converted signals after the A / D conversion are not equal, the signals are not suppressed like interference waves. The output signals of the respective subtracters 18 are added by an adder 19 to finally obtain an output signal.
【０００４】また、同じ文献において、図１２に示すよ
うに、送信アンテナ、受信アンテナが各一本の場合の同
時送受信装置について干渉波除去の方法を示している。
その構成として、送受信信号の一部をＡ／Ｄ変換し、ア
ダプティブフィルタを用いて受信信号に減算処理をし
て、エコーキャンセラ方式により干渉波を抑圧する構成
としている。ただ、この場合には、多素子アンテナに対
しての送信信号を直接利用しての干渉波抑圧については
記述がなく、多素子アンテナには先に述べた構成による
抑圧方法のみ検討されている。従って、図１１の構成と
図１２の構成を組み合わせると、図１３に示すような送
受信装置の構成となる。[0004] In addition, the same document shows a method of removing an interference wave in a simultaneous transmission / reception apparatus in the case of one transmission antenna and one reception antenna as shown in FIG.
As a configuration thereof, a configuration is adopted in which a part of a transmission / reception signal is A / D-converted, a reception signal is subjected to subtraction processing using an adaptive filter, and interference waves are suppressed by an echo canceller method. However, in this case, there is no description about interference wave suppression using a transmission signal directly to the multi-element antenna, and only the suppression method using the above-described configuration is studied for the multi-element antenna. Therefore, when the configuration in FIG. 11 and the configuration in FIG. 12 are combined, a configuration of the transmitting and receiving apparatus as shown in FIG. 13 is obtained.
【０００５】[0005]
【発明が解決しようとする課題】従来の技術は、受信素
子アンテナ＃０の位相と振幅を受信素子アンテナ＃１〜
＃Ｎそれぞれと等しくなるように補正して差し引くこと
により、干渉波を抑圧する方式である。従って、所望波
の影響を受けないよう、干渉波が所望波に比べ十分大き
い必要があり、また逆に、受信部のダイナミックレンジ
の制約から干渉波が所望波に比べ大きくなりすぎない必
要があった。即ち、干渉波のレベルがある範囲内の値で
ないと、適切な動作をしないという課題があった。In the prior art, the phase and the amplitude of the receiving element antenna # 0 are determined by using the receiving element antennas # 1 to # 1.
In this method, interference waves are suppressed by correcting and subtracting the signals to make them equal to #N. Therefore, the interference wave needs to be sufficiently larger than the desired wave so as not to be affected by the desired wave, and conversely, the interference wave must not be too large compared to the desired wave due to the limitation of the dynamic range of the receiving unit. Was. That is, if the level of the interference wave is not a value within a certain range, there is a problem that an appropriate operation is not performed.
【０００６】この発明は、上記のような課題を解消する
ためになされたもので、干渉波が所望波に比べて十分大
きくなくても、また、干渉波が大きすぎても、干渉波を
抑圧し所望波を得る送受信装置を得ることを目的とす
る。The present invention has been made to solve the above-described problems, and suppresses an interference wave even if the interference wave is not sufficiently large as compared with a desired wave or if the interference wave is too large. It is another object of the present invention to obtain a transmitting / receiving device for obtaining a desired wave.
【０００７】[0007]
【課題を解決するための手段】この発明に係る送受信装
置は、基本送信信号を分配する第１の分配器と、分配後
の複数の各分配送信信号の対応する各々の位相を変える
各移相器と、これら各移相器の各々の位相を制御する移
相器制御手段と、移相器で位相を変えた移相後信号に対
応する送信信号を放射する各送信アンテナと、基本送信
信号の一部を取り出す第２の分配器と、基本送信信号を
発生する手段以降で各アンテナ間に設けた送信機から構
成される送信装置と、目標受信信号を受ける複数の各受
信アンテナと、送信装置の第２の分配器で一部を分配さ
れた出力を遅延させる遅延手段と、遅延後の分配信号を
用いて干渉波除去処理をする複数の荷重係数付減算器
と、これら複数の減算器出力を加算する加算器から構成
される受信装置とを備えて、上記受信装置の加算器出力
の一部を上記送信装置の移相器制御手段に帰還させて各
移相器を制御するようにした。A transmitting / receiving apparatus according to the present invention comprises a first distributor for distributing a basic transmission signal, and a phase shifter for changing a corresponding phase of each of the plurality of distributed transmission signals after distribution. Phase shifter control means for controlling the phase of each of these phase shifters, each transmitting antenna for emitting a transmission signal corresponding to the phase-shifted signal whose phase has been changed by the phase shifter, and a basic transmission signal. A second divider for extracting a part of the transmission signal, a transmission device including a transmitter provided between the antennas after the means for generating the basic transmission signal, a plurality of reception antennas for receiving the target reception signal, Delay means for delaying an output partially distributed by the second distributor of the apparatus, a plurality of subtractors with weighting coefficients for performing interference wave removal processing using the delayed distributed signal, and the plurality of subtractors And a receiving device composed of an adder for adding the output. Ete was a part of the adder output of the receiving apparatus so as to control the phase shifters each phase shifter is fed back to the control means of the transmission device.
【０００８】また更に、送信機は、基本送信信号発生手
段と第１の分配器間に設け、送信機出力信号を第１の分
配器で分配するようにした。Further, the transmitter is provided between the basic transmission signal generating means and the first distributor, and the transmitter output signal is distributed by the first distributor.
【０００９】また更に、送信機は、各移相器と各送信ア
ンテナ間にアンテナ対応で複数設けた。Further, a plurality of transmitters are provided between each phase shifter and each transmission antenna corresponding to the antenna.
【００１０】また更に、第１の分配器と各送信アンテナ
間に各アンテナ対応で各減衰器を設け、移相器制御手段
は移相器振幅制御手段とした。Further, each attenuator is provided for each antenna between the first distributor and each transmitting antenna, and the phase shifter control means is phase shifter amplitude control means.
【００１１】また更に、遅延手段は、複数の遅延素子か
ら構成されるアダプティブフィルタとした。Further, the delay means is an adaptive filter composed of a plurality of delay elements.
【００１２】また更に、荷重係数付減算器は、荷重係数
を複数の遅延素子から構成されるアダプティブフィルタ
で求めて減算するようにした。Still further, the subtractor with the weighting factor is configured to obtain and subtract the weighting factor by an adaptive filter comprising a plurality of delay elements.
【００１３】また、第１の分配器と各移相器とに換え
て、基本送信信号を乗算する複数の乗算器と、これら各
々の乗算器出力を対応するアナログ値に変換する各Ｄ／
Ａ変換器とし、送信機はこれらＤ／Ａ変換器の後に設け
て、移相器制御手段は各々の乗算器を制御するようにし
た。In place of the first distributor and each phase shifter, a plurality of multipliers for multiplying the basic transmission signal and each D / D for converting the output of each multiplier to a corresponding analog value are provided.
The A / D converter is used, and the transmitter is provided after these D / A converters, and the phase shifter control means controls each multiplier.
【００１４】または、基本送信信号から送信信号を生成
する送信機と、送信信号を放射する送信アンテナと、基
本送信信号対応の一部を取り出す分配器とから構成され
る送信装置と、目標受信信号を受ける複数の各受信アン
テナと、上記送信装置の分配器で一部を分配された出力
を遅延させる遅延手段と、遅延後の分配信号を用いて干
渉波除去処理をする複数の加重係数付減算器と、複数の
減算器出力を加算する加算器から構成される受信装置と
を備えた。[0014] Alternatively, a transmission device comprising a transmitter for generating a transmission signal from a basic transmission signal, a transmission antenna for radiating the transmission signal, and a distributor for extracting a part corresponding to the basic transmission signal; A plurality of receiving antennas, a delay means for delaying an output partially distributed by the distributor of the transmitting apparatus, and a plurality of subtractions with weighting coefficients for performing interference wave removal processing using the delayed distributed signal. And a receiving device including an adder for adding a plurality of subtractor outputs.
【００１５】また更に、遅延手段は、複数の遅延素子か
ら構成されるアダプティブフィルタとした。Still further, the delay means is an adaptive filter composed of a plurality of delay elements.
【００１６】また更に、受信装置の複数アンテナの素子
指向性を測定する素子電界測定手段を付加し、測定した
指向性により移相器制御手段または移相器振幅制御手段
を近傍の各受信アンテナへの干渉を抑えるよう制御する
ようにした。Further, an element electric field measuring means for measuring the element directivity of a plurality of antennas of the receiving apparatus is added, and the phase shifter control means or the phase shifter amplitude control means is connected to each of the nearby receiving antennas based on the measured directivity. Control to suppress interference.
【００１７】[0017]
実施の形態１．以下、この発明の実施の形態１における
送受信装置を、図１の構成について説明する。図１にお
いて、１は送信信号発生手段、２は送信信号発生手段１
に接続された送信機、３は送信機２に接続された第２の
分配器、４は第２の分配器３に接続された第１の分配
器、５は加算器１９に接続された複数の受信アンテナの
素子指向性を測定する素子電界測定手段、６は素子電界
測定手段５に接続された近傍界干渉波抑圧手段、７は近
傍界干渉波抑圧手段６に接続された移相器制御手段、８
は第１の分配器４と移相器制御手段７に接続された複数
の移相器、９は移相器８にそれぞれ接続された複数の送
信のための素子アンテナである。１０は第２の分配器３
に接続された受信機、１１は受信機１０に接続されたＡ
／Ｄ変換器、１２はＡ／Ｄ変換器１１と減算器１３に接
続されたアダプティブフィルタ、１３はアダプティブフ
ィルタ１２とＡ／Ｄ変換器１６に接続された減算器、１
４は受信のための複数の素子アンテナ、１５は素子アン
テナ１４にそれぞれ接続された複数の受信機、１６は受
信機１５にそれぞれ接続された複数のＡ／Ｄ変換器、１
７はアダプティブフィルタ１２に接続された荷重係数を
乗算する複数の乗算器（係数器）、１８はＡ／Ｄ変換器
１６と乗算器１７にそれぞれ接続された複数の減算器、
１９は複数の減算器１８に接続された加算器である。Embodiment 1 FIG. Hereinafter, the transmitting and receiving apparatus according to Embodiment 1 of the present invention will be described with reference to the configuration of FIG. In FIG. 1, reference numeral 1 denotes transmission signal generating means, 2 denotes transmission signal generating means 1
, 3 is a second distributor connected to the transmitter 2, 4 is a first distributor connected to the second distributor 3, 5 is a plurality of distributors connected to the adder 19. Element electric field measuring means for measuring the element directivity of the receiving antenna, 6 is a near-field interference wave suppressing means connected to the element electric field measuring means 5, and 7 is a phase shifter control connected to the near-field interference wave suppressing means 6. Means, 8
Is a plurality of phase shifters connected to the first distributor 4 and the phase shifter control means 7, and 9 is a plurality of transmission element antennas connected to the phase shifter 8, respectively. 10 is the second distributor 3
Is connected to the receiver 11, and 11 is A connected to the receiver 10.
A / D converter, 12 is an adaptive filter connected to the A / D converter 11 and the subtractor 13, 13 is a subtractor connected to the adaptive filter 12 and the A / D converter 16,
4 is a plurality of element antennas for reception, 15 is a plurality of receivers respectively connected to the element antenna 14, 16 is a plurality of A / D converters respectively connected to the receiver 15, 1
7, a plurality of multipliers (coefficient units) for multiplying the weighting coefficients connected to the adaptive filter 12, 18 a plurality of subtracters respectively connected to the A / D converter 16 and the multiplier 17,
19 is an adder connected to the plurality of subtracters 18.
【００１８】次に、上記構成の装置の動作について説明
する。送信信号発生手段１によって発生した送信信号
は、送信機２にて増幅され、第２の分配器３を経由して
第１の分配器４で複数に分配され、複数の移相器８で位
相を制御され、複数の素子アンテナ９を通して空間に放
射される。この際に、移相器８は、遠方界の所望の方向
に主ビームを向け、かつ、近傍界にある受信用の複数の
素子アンテナ１４への干渉波の放射を抑圧するように、
移相器制御手段７により制御される。移相器制御手段７
では、素子電界測定手段５にて測定したデータをもと
に、近傍界抑圧手段６で得られた位相を移相器８の制御
に用いる。近傍界抑圧手段６では、例えば、特願平７−
１８７１８５「アンテナ励振方法」に詳述された次の式
（１）の評価関数Ｆを最小にする方法などにより位相φ
ｍを求める。Next, the operation of the apparatus having the above configuration will be described. The transmission signal generated by the transmission signal generation means 1 is amplified by the transmitter 2, is divided by the first distributor 4 via the second distributor 3, and is divided into a plurality of phases by the plurality of phase shifters 8. Is radiated into space through the plurality of element antennas 9. At this time, the phase shifter 8 directs the main beam in a desired direction in the far field, and suppresses emission of interference waves to the plurality of receiving element antennas 14 in the near field.
It is controlled by the phase shifter control means 7. Phase shifter control means 7
Then, the phase obtained by the near-field suppressing means 6 is used for controlling the phase shifter 8 based on the data measured by the element electric field measuring means 5. In the near-field suppressing means 6, for example, Japanese Patent Application No.
The phase φ is determined by, for example, a method of minimizing the evaluation function F of the following equation (1) described in detail in “187185 Excitation method”.
Find m.
【００１９】[0019]
【数１】 (Equation 1)
【００２０】ここで、 ｄ0 ：所望の電波の放射方向の単位方向ベクトル ｄ1m：素子アンテナ＃ｍから近傍界においた零点を形成
すべき観測点までのベクトル Ｅ0m：素子アンテナ＃ｍの遠方界主ビーム方向の素子放
射電界 ｅ1m：素子アンテナ＃ｍから近傍界においた零点を形成
すべき観測点を見た方向の素子放射電界 φｍ：アンテナ＃ｍの励振位相 Ｇ0 ：遠方界の主ビーム方向の所望利得 である。Here, d 0 : a unit direction vector in a radiation direction of a desired radio wave d 1m : a vector from the element antenna #m to an observation point in the near field where a zero is to be formed E 0m : a distance from the element antenna #m Sakainushi beam direction of the element radiation electric field e 1 m: element antennas #m direction of the element radiation field viewed observation points to form the zeros placed in the near field from the [phi] m: excitation phase G of the antenna #m 0: far field of the main The desired gain in the beam direction.
【００２１】送信波の放射は、受信用の素子アンテナ１
４への干渉波の放射を抑圧するように制御されている
が、送信波の一部は、干渉波となって受信アンテナ１４
の各素子アンテナで受信される。各素子アンテナでは、
干渉波とともに所望波を受信し、各素子アンテナに接続
されたそれぞれの受信機１５で周波数変換された後、各
受信機に接続されたそれぞれのＡ／Ｄ変換器１６にてＡ
／Ｄ変換される。The transmission wave is radiated from the receiving element antenna 1.
4 is controlled so as to suppress the emission of the interference wave to the receiving antenna 14.
Are received by each element antenna. For each element antenna,
A desired wave is received together with the interference wave, and frequency-converted by each receiver 15 connected to each element antenna, and then A / D converters 16 connected to each receiver are used for A / D conversion.
/ D conversion.
【００２２】また、送信信号発生手段１によって発生し
た送信信号の一部が第２の分配器３により分配され、分
配器３に接続された受信機１０で周波数変換された後、
受信機１０に接続されたＡ／Ｄ変換器１１にてＡ／Ｄ変
換され、アダプティブフィルタ１２に入力される。アダ
プティブフィルタ（ＡＤＦ）１２は、図２に示すよう
に、遅延線２０、乗算器２１、加算器２２、加重計算手
段２３から構成される。加重計算手段２３では、次の式
（２）による方法等により加重を求め、乗算器２１に設
定される。Further, after a part of the transmission signal generated by the transmission signal generating means 1 is distributed by the second distributor 3 and frequency-converted by the receiver 10 connected to the distributor 3,
A / D conversion is performed by an A / D converter 11 connected to the receiver 10, and input to the adaptive filter 12. As shown in FIG. 2, the adaptive filter (ADF) 12 includes a delay line 20, a multiplier 21, an adder 22, and a weight calculator 23. The weight calculating means 23 obtains the weight by the following equation (2) or the like, and sets the weight in the multiplier 21.
【００２３】[0023]
【数２】 (Equation 2)
【００２４】以上により、アダプティブフィルタ１２で
は、干渉波の伝搬経路を模擬するようになり、送信信号
を分配した信号を入力することにより、干渉波のレプリ
カを得られる。なお、本構成では、アダプティブフィル
タで複雑な伝搬経路となる実環境を模擬する構成とした
が、もっと簡単に複数の遅延手段を用いて単純な伝搬経
路となる遅延時間のみを模擬するようにしてもよい。As described above, the adaptive filter 12 simulates the propagation path of the interference wave, and a replica of the interference wave can be obtained by inputting a signal obtained by distributing the transmission signal. In this configuration, the adaptive filter simulates a real environment that is a complicated propagation path.However, it is easier to use a plurality of delay means to simulate only a delay time that is a simple propagation path. Is also good.
【００２５】アダプティブフィルタ１２の出力信号とし
て得られた干渉波のレプリカは、複数の乗算器（係数
器）１７に入力され、素子アンテナ＃１〜＃Ｎで受信さ
れた信号のＡ／Ｄ変換後のそれぞれの出力信号と等しく
なるように位相と振幅が補正され、それぞれ減算器１８
で素子アンテナ＃１〜＃Ｎで受信された信号のＡ／Ｄ変
換後の出力信号から差し引かれて、干渉波が抑圧され
る。一方、所望波は、元々乗算器の入力信号に含まれな
いので、素子アンテナ＃１〜＃Ｎで受信された信号のＡ
／Ｄ変換後の出力信号から差し引かれることはない。そ
れぞれの減算器１８の出力信号は、加算器１９で加算さ
れ、最終的に出力信号を得る。The replica of the interference wave obtained as an output signal of the adaptive filter 12 is input to a plurality of multipliers (coefficient units) 17 and is subjected to A / D conversion of signals received by the element antennas # 1 to #N. The phase and the amplitude are corrected so as to be equal to the respective output signals of
Then, the signals received by the element antennas # 1 to #N are subtracted from the output signals after the A / D conversion, and the interference wave is suppressed. On the other hand, since the desired wave is not originally included in the input signal of the multiplier, the A of the signals received by the element antennas # 1 to #N is not included.
It is not subtracted from the output signal after the / D conversion. The output signals of the respective subtracters 18 are added by an adder 19 to finally obtain an output signal.
【００２６】上記で説明したように、本発明では、送信
信号の一部が干渉波レプリカとして用いられ、さらに帰
還して制御するので、受信用アンテナへの干渉波の放射
が抑圧され、受信機のダイナミックレンジの制約が緩和
される。また、乗算器の入力信号として所望波を含まな
い送信機から分配した信号を用いるので、所望波のレベ
ルに影響されずに、干渉波を抑圧することができる。As described above, in the present invention, since a part of the transmission signal is used as an interference wave replica and further controlled by feedback, radiation of the interference wave to the receiving antenna is suppressed, and Of the dynamic range is relaxed. Further, since a signal distributed from a transmitter that does not include a desired wave is used as an input signal to the multiplier, an interference wave can be suppressed without being affected by the level of the desired wave.
【００２７】上記構成で、素子電界測定手段と近傍界干
渉波抑圧手段は、受信アンテナ素子群が送信アンテナ素
子群の近傍にある場合の干渉波の低減に特に有効である
が、送信と受信アンテナが相互に離れている場合は、計
算により送受波の放射を、受信アンテナへの干渉波を抑
圧するように制御することもできる。なお、図１では、
分配器３が送信機２の後に接続される場合を示したが、
分配器３が送信機２の前に接続されても、同様の効果が
得られることは言うまでもない。In the above configuration, the element electric field measuring means and the near-field interference wave suppressing means are particularly effective for reducing the interference wave when the receiving antenna element group is in the vicinity of the transmitting antenna element group. Are separated from each other, the radiation of the transmitted and received waves can be controlled by calculation so as to suppress the interference wave to the receiving antenna. In FIG. 1,
Although the case where the distributor 3 is connected after the transmitter 2 is shown,
It goes without saying that the same effect can be obtained even if the distributor 3 is connected before the transmitter 2.
【００２８】実施の形態２．実施の形態１では、送信機
が分配器より前にあるパッシブフェーズドアレーアンテ
ナの場合を示したが、図３に示すように、分配器４の後
に複数の送信機２５を接続してアクティブフェーズドア
レーアンテナの構成としてもよい。上記構成の装置でも
干渉波の抑圧動作については、先の実施の形態の装置と
同様の動作をするので、詳細記述は省略する。Embodiment 2 In the first embodiment, the case where the transmitter is a passive phased array antenna located before the distributor is shown. However, as shown in FIG. An antenna configuration may be used. In the apparatus having the above-described configuration, the operation of suppressing the interference wave is the same as that of the apparatus of the above-described embodiment, and a detailed description thereof will be omitted.
【００２９】実施の形態３．実施の形態２では、位相だ
けで送信ビームを制御する場合を示したが、図４に示す
ように、減衰器２６を設けて位相だけでなく振幅をも制
御することにより、更に、高精度に送信ビームを制御す
るようにしてもよい。位相とともに振幅を制御する動作
自体は既に知られており、ここでは詳述記述を省略す
る。Embodiment 3 In the second embodiment, the case where the transmission beam is controlled only by the phase has been described. However, as shown in FIG. 4, by providing the attenuator 26 to control not only the phase but also the amplitude, it is possible to further improve the accuracy. The transmission beam may be controlled. The operation of controlling the amplitude together with the phase is already known, and the detailed description is omitted here.
【００３０】実施の形態４．上記各実施の形態では、送
信アンテナ素子の各位相子制御をアナログ方式で行う場
合を説明した。しかし、位相量制御をディジタル値で行
うことができれば、制御がより容易になる。そこで、本
実施の形態では、図５に示すように、送信信号発生手段
１でディジタル送信信号を発生し、複数の乗算器（係数
器）２８で位相と振幅を制御して、それぞれの複数のＤ
／Ａ変換器２９でＤ／Ａ変換した後、それぞれ複数の送
信機に入力する構成とする。実施の形態３では、複数の
アナログ方式の移相器で位相を、複数のアナログ方式の
減衰器で振幅を、それぞれ制御する場合を示したが、本
実施の形態では、複数の乗算器２８を用いて、ディジタ
ル送信信号の位相と振幅を制御することで、移相器や減
衰器の性能に左右されないで、高精度に送信ビームを制
御することができる。また、制御指令そのものも容易で
ある。Embodiment 4 In each of the above embodiments, a case has been described in which each of the phase shifters of the transmitting antenna element is controlled in an analog manner. However, if the phase amount control can be performed with digital values, the control becomes easier. Therefore, in the present embodiment, as shown in FIG. 5, a digital transmission signal is generated by the transmission signal generating means 1, and the phase and amplitude are controlled by a plurality of multipliers (coefficient units) 28, and a plurality of D
After the D / A conversion by the / A converter 29, each of the signals is input to a plurality of transmitters. In the third embodiment, the phase is controlled by a plurality of analog phase shifters, and the amplitude is controlled by a plurality of analog attenuators. However, in the present embodiment, a plurality of multipliers 28 are controlled. By controlling the phase and the amplitude of the digital transmission signal by using this, the transmission beam can be controlled with high accuracy without being affected by the performance of the phase shifter or the attenuator. Also, the control command itself is easy.
【００３１】実施の形態５．実施の形態１では、アダプ
ティブフィルタの出力信号を複数の乗算器に入力して、
位相と振幅を補正する場合を示したが、図６に示すよう
に、アダプティブフィルタ１２の出力信号を複数のアダ
プティブフィルタ（ＡＤＦ）３０に入力して位相と振幅
を補正することで、より複雑な伝搬経路による干渉波を
抑圧する構成にできる。Embodiment 5 In the first embodiment, the output signal of the adaptive filter is input to a plurality of multipliers,
Although the case where the phase and the amplitude are corrected has been described, as shown in FIG. 6, the output signal of the adaptive filter 12 is input to a plurality of adaptive filters (ADFs) 30 to correct the phase and the amplitude, thereby complicating the operation. A configuration that suppresses interference waves due to the propagation path can be adopted.
【００３２】本実施の形態の加重係数をアダプティブフ
ィルタで構成することを、他の構成と組み合わせて用い
てもよい。実施の形態２に、本実施の形態の構成を適用
して、図７に示す装置としてもよい。即ち、アダプティ
ブフィルタ１２の出力信号を複数のアダプティブフィル
タ３０に入力して位相と振幅を補正することで、より複
雑な伝搬経路による干渉波を抑圧する。The configuration of the weighting coefficients of the present embodiment using an adaptive filter may be used in combination with another configuration. An apparatus shown in FIG. 7 may be applied to the second embodiment by applying the configuration of the present embodiment. That is, by inputting the output signal of the adaptive filter 12 to the plurality of adaptive filters 30 and correcting the phase and the amplitude, the interference wave due to a more complicated propagation path is suppressed.
【００３３】実施の形態３に、本実施の形態の構成を適
用して、図８に示す装置としてもよい。アクティブフェ
ーズドアレーアンテナにおいて、アダプティブフィルタ
１２の出力信号を複数のアダプティブフィルタ３０に入
力して位相と振幅を補正することで、より複雑な伝搬経
路による干渉波を抑圧する。An apparatus shown in FIG. 8 may be obtained by applying the configuration of the present embodiment to the third embodiment. In an active phased array antenna, an output signal of the adaptive filter 12 is input to a plurality of adaptive filters 30 to correct phases and amplitudes, thereby suppressing interference waves due to more complicated propagation paths.
【００３４】実施の形態４に、本実施の形態の構成を適
用して、図９に示す装置としてもよい。位相と振幅を制
御する装置において、アダプティブフィルタ１２の出力
信号を複数のアダプティブフィルタ３０に入力して位相
と振幅を補正することで、より複雑な伝搬経路による干
渉波を抑圧する。An apparatus shown in FIG. 9 may be obtained by applying the configuration of the present embodiment to the fourth embodiment. In a device for controlling the phase and the amplitude, an output signal of the adaptive filter 12 is input to a plurality of adaptive filters 30 to correct the phase and the amplitude, thereby suppressing an interference wave due to a more complicated propagation path.
【００３５】実施の形態６．上記各実施の形態では、送
信アンテナを複数の素子アンテナからなるフェーズドア
レーアンテナの構成としたが、干渉波があまり大きくな
い場合は、図１０に示す単一の送信アンテナ２４からな
る構成に対しても適用して効果がある。Embodiment 6 FIG. In each of the above embodiments, the transmitting antenna is configured as a phased array antenna including a plurality of element antennas. However, when the interference wave is not so large, the transmitting antenna is configured as a single transmitting antenna 24 illustrated in FIG. It is also effective to apply.
【００３６】本実施の形態において、実施の形態５と同
様、アダプティブフィルタ１２の出力信号を複数のアダ
プティブフィルタに入力して位相と振幅を補正すること
により、より複雑な伝搬経路による干渉波を抑圧できる
構成としてもよいことは言うまでもない。また、アダプ
ティブフィルタ１２に変えて、複数の遅延手段としても
よい。In this embodiment, as in the fifth embodiment, the output signal of the adaptive filter 12 is input to a plurality of adaptive filters to correct the phase and the amplitude, thereby suppressing the interference wave due to a more complicated propagation path. Needless to say, a configuration that can be used may be used. Further, instead of the adaptive filter 12, a plurality of delay units may be used.
【００３７】[0037]
【発明の効果】以上のように、この発明では、送信アン
テナを複数の素子アンテナからなるフェーズドアレーア
ンテナに対して、受信アンテナ各素子からの信号差し引
く信号として送信機から分配された信号から作り出した
信号を用い、更に、受信信号から帰還して送信アンテナ
の位相を制御する構成にしたので、受信部ダイナミック
レンジの制約が緩和され、干渉波が大きすぎても、ま
た、所望波に比べて干渉波が十分大きくなくても干渉波
を抑圧し、所望波が得られる効果がある。これは、帰還
構成を省いても同様効果がある。As described above, according to the present invention, a transmitting antenna is generated from a signal distributed from a transmitter as a signal for subtracting a signal from each element of a receiving antenna for a phased array antenna including a plurality of element antennas. The signal is used, and the phase of the transmitting antenna is controlled by returning from the received signal, so that the restriction on the dynamic range of the receiving unit is relaxed. Even if the wave is not sufficiently large, there is an effect that the interference wave is suppressed and a desired wave is obtained. This has the same effect even if the feedback configuration is omitted.
【図１】 この発明の実施の形態１における送受信装置
の構成図である。FIG. 1 is a configuration diagram of a transmission / reception apparatus according to Embodiment 1 of the present invention.
【図２】 実施の形態１の構成要素であるアダプティブ
フィルタの詳細構成図である。FIG. 2 is a detailed configuration diagram of an adaptive filter that is a component of the first embodiment.
【図３】 この発明の実施の形態２における送受信装置
の構成図である。FIG. 3 is a configuration diagram of a transmission / reception apparatus according to Embodiment 2 of the present invention.
【図４】 この発明の実施の形態３における送受信装置
の構成図である。FIG. 4 is a configuration diagram of a transmission / reception apparatus according to Embodiment 3 of the present invention.
【図５】 この発明の実施の形態４における送受信装置
の構成図である。FIG. 5 is a configuration diagram of a transmission / reception apparatus according to Embodiment 4 of the present invention.
【図６】 この発明の実施の形態５における送受信装置
の構成図である。FIG. 6 is a configuration diagram of a transmission / reception apparatus according to Embodiment 5 of the present invention.
【図７】 この発明の実施の形態５における他の送受信
装置の構成図である。FIG. 7 is a configuration diagram of another transmitting / receiving apparatus according to Embodiment 5 of the present invention.
【図８】 この発明の実施の形態５における他の送受信
装置の構成図である。FIG. 8 is a configuration diagram of another transmitting / receiving apparatus according to Embodiment 5 of the present invention.
【図９】 この発明の実施の形態５における他の送受信
装置の構成図である。FIG. 9 is a configuration diagram of another transmitting / receiving apparatus according to Embodiment 5 of the present invention.
【図１０】 この発明の実施の形態６における送受信装
置の構成図である。FIG. 10 is a configuration diagram of a transmission / reception apparatus according to Embodiment 6 of the present invention.
【図１１】 従来の送受信装置の構成図である。FIG. 11 is a configuration diagram of a conventional transmitting / receiving apparatus.
【図１２】 従来の送受信装置の構成図である。FIG. 12 is a configuration diagram of a conventional transmitting / receiving apparatus.
【図１３】 従来の送受信装置の構成図である。FIG. 13 is a configuration diagram of a conventional transmitting / receiving apparatus.
１ 送信信号発生手段、２ 送信機、３ 第２の分配
器、４ 第１の分配器、５ 素子電界測定手段、６ 近
傍界干渉波抑圧手段、７ 移相器制御手段、８複数の移
相器、９ 複数の素子アンテナ、１０ 受信機、１１
Ａ／Ｄ変換器、１２ アダプティブフィルタ、１３ 減
算器、１４ 複数の素子アンテナ、１５複数の受信機、
１６ 複数のＡ／Ｄ変換器、１７ 複数の乗算器（係数
器）、１８ 複数の減算器、１９ 加算器、２０ 複数
の遅延線、２１ 複数の乗算器、２２ 加算器、２３
荷重計算手段、２４ 送信アンテナ、２５ 複数の送信
機、２６ 減衰器、２７ 位相振幅制御手段、２８ 複
数の乗算器（係数器）、２９ 複数のＤ／Ａ変換器、３
０ 複数のアダプティブフィルタ。REFERENCE SIGNS LIST 1 transmission signal generating means, 2 transmitter, 3 second distributor, 4 first distributor, 5 element electric field measuring means, 6 near-field interference wave suppressing means, 7 phase shifter control means, 8 multiple phase shifts , 9 multiple element antennas, 10 receivers, 11
A / D converter, 12 adaptive filter, 13 subtractor, 14 multiple element antennas, 15 multiple receivers,
Reference Signs List 16 plural A / D converters, 17 plural multipliers (coefficient units), 18 plural subtractors, 19 adders, 20 plural delay lines, 21 plural multipliers, 22 adders, 23
Load calculating means, 24 transmitting antennas, 25 plural transmitters, 26 attenuators, 27 phase and amplitude controlling means, 28 plural multipliers (coefficient units), 29 plural D / A converters, 3
0 Multiple adaptive filters.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 米倉 英晃 神奈川県相模原市渕野辺１−18−32 Ａ− 105 (72)発明者 保科 恭史 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 伊藤 敬 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideaki Yonekura 1-18-32 Fuchinobe, Sagamihara City, Kanagawa Prefecture A-105 (72) Inventor Yasushi Hoshina 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation Inside the company (72) Inventor Takashi Ito 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation
Claims (10)
と、上記分配後の複数の各分配送信信号の対応する各々
の位相を変える各移相器と、上記各移相器の各々の位相
を制御する移相器制御手段と、上記移相器で位相を変え
た移相後信号に対応する送信信号を放射する各送信アン
テナと、上記基本送信信号の一部を取り出す第２の分配
器と、上記基本送信信号を発生する手段以降で各アンテ
ナ間に設けた送信機から構成される送信装置と、 目標受信信号を受ける複数の各受信アンテナと、上記送
信装置の第２の分配器で一部を分配された出力を遅延さ
せる遅延手段と、上記遅延後の分配信号を用いて干渉波
除去処理をする複数の加重係数付減算器と、上記複数の
減算器出力を加算する加算器から構成される受信装置と
を備え、 上記受信装置の加算器出力の一部を上記送信装置の移相
器制御手段に帰還させて上記各移相器を制御する送受信
装置。A first divider for distributing a basic transmission signal; a phase shifter for changing a corresponding phase of each of the plurality of divided transmission signals after the distribution; and a phase shifter for each of the phase shifters. Phase shifter control means for controlling the phase, each transmitting antenna for emitting a transmission signal corresponding to the phase-shifted signal whose phase has been changed by the phase shifter, and a second distribution for extracting a part of the basic transmission signal Transmitter, comprising a transmitter provided between the antennas after the means for generating the basic transmission signal, a plurality of receiving antennas for receiving a target reception signal, and a second distributor of the transmission device Delay means for delaying the output partially distributed by the above, a plurality of subtractors with weighting coefficients for performing interference wave removal processing using the delayed distributed signals, and an adder for adding the outputs of the plurality of subtracters And a receiving device comprising: Some vessels output is fed back to the phase shifter control means of the transmitting apparatus transmitting and receiving apparatus which controls each phase shifter described above.
の分配器間に設け、送信機出力信号を第１の分配器で分
配するようにしたことを特徴とする請求項１記載の送受
信装置。2. A transmitter, comprising: a basic transmission signal generating means;
2. The transmission / reception device according to claim 1, wherein the transmitter output signal is distributed by the first distributor.
にアンテナ対応で複数設けたことを特徴とする請求項１
記載の送受信装置。3. The transmitter according to claim 1, wherein a plurality of transmitters are provided between each phase shifter and each transmitting antenna corresponding to the antenna.
The transmitting / receiving device as described in the above.
ンテナ対応で各減衰器を設け、移相器制御手段は移相器
振幅制御手段としたことを特徴とする請求項３記載の送
受信装置。4. The phase shifter according to claim 3, wherein each attenuator is provided for each antenna between the first distributor and each transmission antenna, and the phase shifter control means is phase shifter amplitude control means. Transceiver.
れるアダプティブフィルタであることを特徴とする請求
項１ないし請求項３いずれか記載の送受信装置。5. The transmission / reception apparatus according to claim 1, wherein the delay unit is an adaptive filter including a plurality of delay elements.
遅延素子から構成されるアダプティブフィルタで求めて
減算することを特徴とする請求項１ないし請求項３いず
れか記載の送受信装置。6. The transmitting / receiving apparatus according to claim 1, wherein the subtractor with the weighting coefficient obtains and subtracts the weighting coefficient by using an adaptive filter including a plurality of delay elements.
本送信信号を乗算する複数の乗算器と、上記各々の乗算
器出力を対応するアナログ値に変換する各Ｄ／Ａ変換器
とし、送信機は上記Ｄ／Ａ変換器の後に設け、 移相器制御手段は上記各々の乗算器を制御することを特
徴とする請求項１記載の送受信装置。7. A plurality of multipliers for multiplying a basic transmission signal in place of the first distributor and each phase shifter, and each D / A for converting the output of each multiplier to a corresponding analog value. 2. The transmitting / receiving apparatus according to claim 1, wherein the transmitting / receiving apparatus is a converter, and a transmitter is provided after the D / A converter, and the phase shifter control means controls each of the multipliers.
信機と、上記送信信号を放射する送信アンテナと、上記
基本送信信号対応の一部を取り出す分配器とから構成さ
れる送信装置と、 目標受信信号を受ける複数の各受信アンテナと、上記送
信装置の分配器で一部を分配された出力を遅延させる遅
延手段と、上記遅延後の分配信号を用いて干渉波除去処
理をする複数の加重係数付減算器と、上記複数の減算器
出力を加算する加算器から構成される受信装置とを備え
た送受信装置。8. A transmission device comprising: a transmitter for generating a transmission signal from a basic transmission signal; a transmission antenna for radiating the transmission signal; and a distributor for extracting a part corresponding to the basic transmission signal. A plurality of receiving antennas for receiving a received signal; delay means for delaying an output partially distributed by the distributor of the transmitting device; and a plurality of weights for performing interference wave removal processing using the delayed distributed signal. A transmission / reception device comprising: a subtractor with a coefficient; and a reception device including an adder for adding outputs of the plurality of subtracters.
れるアダプティブフィルタであることを特徴とする請求
項８記載の送受信装置。9. The transmission / reception apparatus according to claim 8, wherein said delay means is an adaptive filter comprising a plurality of delay elements.
を測定する素子電界測定手段を付加し、上記測定した指
向性により移相器制御手段または移相器振幅制御手段を
近傍の各受信アンテナへの干渉を抑えるよう制御するよ
うにしたことを特徴とする請求項１ないし請求項３いず
れか記載の送受信装置。10. An element electric field measuring means for measuring element directivities of a plurality of antennas of a receiving apparatus, and a phase shifter control means or a phase shifter amplitude control means is connected to each of the adjacent receiving antennas based on the measured directivity. The transmission / reception apparatus according to any one of claims 1 to 3, wherein the transmission / reception apparatus is controlled to suppress interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9288406A JP3046949B2 (en) | 1997-10-21 | 1997-10-21 | Transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9288406A JP3046949B2 (en) | 1997-10-21 | 1997-10-21 | Transceiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11125670A true JPH11125670A (en) | 1999-05-11 |
| JP3046949B2 JP3046949B2 (en) | 2000-05-29 |
Family
ID=17729805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9288406A Expired - Lifetime JP3046949B2 (en) | 1997-10-21 | 1997-10-21 | Transceiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3046949B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157794A (en) * | 2006-12-25 | 2008-07-10 | Fuji Heavy Ind Ltd | Pulse radar, on-vehicle radar, and landing assistant radar |
| US7962170B2 (en) | 2003-05-27 | 2011-06-14 | Interdigital Technology Corporation | Multi-mode radio with interference cancellation circuit |
| JP2014236324A (en) * | 2013-05-31 | 2014-12-15 | 三菱電機株式会社 | Transmission/reception method and transmission/reception device |
| CN112526492A (en) * | 2019-09-19 | 2021-03-19 | 株式会社东芝 | Distance measuring device and distance measuring system |
| WO2023013030A1 (en) * | 2021-08-06 | 2023-02-09 | 三菱電機株式会社 | Radar device and signal processor for radar device |
-
1997
- 1997-10-21 JP JP9288406A patent/JP3046949B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7962170B2 (en) | 2003-05-27 | 2011-06-14 | Interdigital Technology Corporation | Multi-mode radio with interference cancellation circuit |
| JP2008157794A (en) * | 2006-12-25 | 2008-07-10 | Fuji Heavy Ind Ltd | Pulse radar, on-vehicle radar, and landing assistant radar |
| JP2014236324A (en) * | 2013-05-31 | 2014-12-15 | 三菱電機株式会社 | Transmission/reception method and transmission/reception device |
| CN112526492A (en) * | 2019-09-19 | 2021-03-19 | 株式会社东芝 | Distance measuring device and distance measuring system |
| WO2023013030A1 (en) * | 2021-08-06 | 2023-02-09 | 三菱電機株式会社 | Radar device and signal processor for radar device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3046949B2 (en) | 2000-05-29 |
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