JPS6049276A - Monopulse radar receiver - Google Patents
Monopulse radar receiverInfo
- Publication number
- JPS6049276A JPS6049276A JP15820183A JP15820183A JPS6049276A JP S6049276 A JPS6049276 A JP S6049276A JP 15820183 A JP15820183 A JP 15820183A JP 15820183 A JP15820183 A JP 15820183A JP S6049276 A JPS6049276 A JP S6049276A
- Authority
- JP
- Japan
- Prior art keywords
- channel
- signal
- phase
- mixer
- error
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4436—Monopulse radar, i.e. simultaneous lobing with means specially adapted to maintain the same processing characteristics between the monopulse signals
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、 ＳＵＭチャンネルと誤差チャンネルの位
相差な零にすることを必要とするモノノくルスレーダ受
信機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a monochrome radar receiver that requires the phase difference between a SUM channel and an error channel to be zero.
まず、従来のモノパルスレーダ受信機を第１図を参照し
て説明するつ第１図において（１）はモノノくルスアン
テナ、（２）は混合器、（３）はＩＦ増幅器、（４）は
振幅検波Ｌ（５１は位相検波器、（６）は誤差検出器。First, a conventional monopulse radar receiver will be explained with reference to Fig. 1. In Fig. 1, (1) is a monopulse antenna, (2) is a mixer, (3) is an IF amplifier, and (4) is Amplitude detection L (51 is a phase detector, (6) is an error detector.
（７）は半固定移相器、（８）は分配器、（９）は局部
発振器。(7) is a semi-fixed phase shifter, (8) is a distributor, and (9) is a local oscillator.
ａＧはトリガパルス発生器である。第１図と共にその動
作を説明すると、七ツノくルスアンテナ＋１１で受信さ
れた９Σ信号、ΔＡｚ信号及びムＦＩＬ信号をそれぞれ
の混合器（２）で局発信号と混合し、ＩＦ倍信号変換す
る。その信号はΣ信号として振幅検波器（４）で検波さ
れΣビデオとして信号処理部へ送られる。aG is a trigger pulse generator. To explain its operation with reference to Figure 1, the 9Σ signal, ΔAz signal, and MuFIL signal received by the Seven Horned Cross Antenna +11 are mixed with the local oscillation signal in each mixer (2) and converted into an IF multiplied signal. . The signal is detected as a Σ signal by an amplitude detector (4) and sent to the signal processing section as a Σ video.
又ΔＡｚ信号及び△ＫＬ信号はΣ信号と位相検波器（５
）で位相検波され１ トリＩノくルス発生器ｔｌｌで発
生したトリガにより誤差検出器（６）でサンプルホール
ドされそれぞれＡｚ誤差信号、ＥＬ誤差信号として信号
処理部−＼送られる。一方２局発信号は局部発振器（９
）で発生し分配器（８）で分配され、Σチャンネル用と
して混合器（２）へ送られ、ΔＡｚチャンネル及びΔＩ
Ｊ。In addition, the ΔAz signal and ΔKL signal are connected to the Σ signal and the phase detector (5
), the signal is sampled and held in an error detector (6) by a trigger generated by a pulse generator (tll), and sent to the signal processing unit as an Az error signal and an EL error signal, respectively. On the other hand, the second local oscillator signal is generated by the local oscillator (9
), distributed by the distributor (8), sent to the mixer (2) for the Σ channel, and sent to the mixer (2) for the ΔAz channel and the ΔI channel.
J.
チャンネル用としてモノパルス位相調整用半固定移相器
（７）を通し混合器（２）へ送られる。The signal for the channel is sent to the mixer (2) through a semi-fixed phase shifter (7) for monopulse phase adjustment.
従来この種のモノパルスレーダ受信機において。In conventional monopulse radar receivers of this type.
１００Ｍチャンネルと誤差チャンネルの位相差を零にす
る場合 位相特性が要求される温度範囲２周波数範囲及
びＡＧＯ範囲において同一の特性を持つ混合器（２）及
びｘｙ増幅器（３）が必要となり、そのハードウェア設
計の難しさ及び部品選択の必要性等。When making the phase difference between the 100M channel and the error channel zero, a mixer (2) and an xy amplifier (3) that have the same characteristics in the temperature range, two frequency ranges, and the AGO range where phase characteristics are required are required, and the hardware Difficulties in designing clothing and necessity of selecting parts, etc.
問題が発生し℃いた。There was a problem.
この発明は、上述の従来受信機の欠点を解決したもので
、その特徴は追尾中のある時間を利用して位相偏位を検
出してＡＺ、 ＥＬ各チャンネルの局発信号の位相を変
化させΣ信号−ΔＡｚ信号、Σ信号−△ＨＬ信号の位相
差を常に零に保つことにある。This invention solves the above-mentioned drawbacks of the conventional receiver, and its feature is that it uses a certain time during tracking to detect the phase deviation and change the phase of the local signal of each AZ and EL channel. The objective is to always maintain the phase difference between the Σ signal and the ΔAz signal and the Σ signal and the ΔHL signal at zero.
以下第２図及び第３図を用いてこの発明の詳細な説明す
る。The present invention will be described in detail below with reference to FIGS. 2 and 3.
第２図において（１１〜＋５１．ｔ８１〜０１は従来の
受信機と同様である。従来の受信機と同様に混合器（２
）。In Fig. 2, (11 to +51.
).
ＩＦ増幅器（３）、振幅器（４）及び位相検波器（５）
罠よりΣビデオ、Ａ２位相検波ビデオ及びＥＬ位相検波
ビデオが発生するが チャンネル間に位相差θが発生し
た場合７位相検波ビデオは△房θとなり第３図の位相検
波ビデオ（Ａ）−（ａ）の通りの信号が発生する。IF amplifier (3), amplifier (4) and phase detector (5)
A Σ video, an A2 phase detection video, and an EL phase detection video are generated from the trap, but if a phase difference θ occurs between channels, the 7 phase detection video becomes △ θ and becomes the phase detection video (A) - (a) in Figure 3. ) is generated.
又、ゲート３（Ｆ）によりΔチャンネルの局発信号が９
０°ハイブリツドＱ３と５ＰＤＴスイツチＯｚにより〇
−９０°切換を行っている為９０°切換時間には位相検
波ビデオは△ｍｌｎθとなり位相検波ビデオ（Ａ） −
（ｂ）の通りの信号が発生する。△可θ位相検波ビデオ
とゲート（１）とを時分割誤差検出器Ｉに入力しサンダ
ルホールドし誤差信号を検出する。又、へｍｌｎθ位相
検波ビデオとゲート（２）とを時分割誤差検出器１１）
に入力しサンプルホールドし、又、へ蜘θが零になる様
なディスクリを通して９位相補償信号（ＩＵ）を検出す
る。この位相補償信号（Ｅ）は可変移相器０４に送られ
誤差チャンネルの位相量を変化させる。Also, the local oscillation signal of the Δ channel is changed to 9 by gate 3 (F).
Since the 0-90° switching is performed by the 0° hybrid Q3 and the 5PDT switch Oz, the phase detection video becomes △mlnθ during the 90° switching time, and the phase detection video (A) -
A signal as shown in (b) is generated. The Δθ phase detection video and the gate (1) are input to a time division error detector I, and subjected to sandal hold to detect an error signal. In addition, the mlnθ phase detection video and the gate (2) are connected to the time division error detector 11).
9 phase compensation signals (IU) are detected through a discreet such that θ becomes zero. This phase compensation signal (E) is sent to the variable phase shifter 04 to change the phase amount of the error channel.
これはΔ自θが零になる閉ループを組むこととなり位相
検波ビデオ（Ａ） −（ｃ）の通り常にＳＵＭ−誤差チ
ャンネル間の位相差θを零に保つことが出来る。This creates a closed loop in which Δ and θ become zero, and as shown in phase detection videos (A) to (c), the phase difference θ between the SUM and error channels can always be kept at zero.
第１図は従来のモノパルスレーダ受信機に使ワれている
受信機の一実施例を示すブロック図、第２図はこの発明
の一実施例を示すブロック図、第３図は第２図の動作説
明の為の各部波形図であり。
（１）はモノパルスアンテナ、（２）は混合器、（３）
はＩＦ増幅器、（４）は振幅検波器、（５）は位相検波
器、（６）は誤差検出器、（７）は半固定移相器、（８
）は分配器、（９）は局部発振器、 Ｑｌはトリガパル
ス発生器、＋１９は時分割誤差検出器、０ｚは５ＰＤＴ
ｘイッチ、 Ｑｌ＆’１９Ｑ’ハイブリツド、 ＋１４
＋は可変移相器である。
なお図中、同一あるいは相当部分には同一符号を付して
示しである。
代理人大岩増雄Fig. 1 is a block diagram showing an embodiment of a receiver used in a conventional monopulse radar receiver, Fig. 2 is a block diagram showing an embodiment of the present invention, and Fig. 3 is a block diagram showing an embodiment of the receiver used in a conventional monopulse radar receiver. This is a waveform diagram of each part to explain the operation. (1) is a monopulse antenna, (2) is a mixer, (3)
is an IF amplifier, (4) is an amplitude detector, (5) is a phase detector, (6) is an error detector, (7) is a semi-fixed phase shifter, (8
) is the distributor, (9) is the local oscillator, Ql is the trigger pulse generator, +19 is the time division error detector, 0z is 5PDT
x switch, Ql &'19Q' hybrid, +14
+ is a variable phase shifter. In the drawings, the same or corresponding parts are designated by the same reference numerals. Agent Masuo Oiwa
Claims (1)
ルの中間周波数に変換する混合器と、その混合器につな
がる工Ｆ増幅器と、そのＩＦ増幅器につながり、誤差角
を検出する２チヤンネルの位相検波器及び時分割誤差検
出器と、上記時分割誤差検出器を制御するトリガパルス
発生器とを有し、さらに局部信号発生系として１局部発
振器につながる分配器と、その分配器の２出力の後に。 上記時分割誤差検出器で検出する信号で動作する可変移
相器、９０°ハイブリツド及び上記トリガパルス発生器
で制御される５ＰＤＴスイツチがつながり、誤差チャン
ネル用上記混合器に接続され、上記分配器の１出力の後
にＳＵＭチャンネル用上記混合器に接続しであることな
特徴とするモノパルスレーダ受信機。[Claims] A mixer connected to a monopulse antenna and converting a received signal into a three-channel intermediate frequency, an engineered frequency amplifier connected to the mixer, and a two-channel amplifier connected to the IF amplifier to detect an error angle. It has a phase detector, a time-division error detector, and a trigger pulse generator for controlling the time-division error detector, and further includes a distributor connected to one local oscillator as a local signal generation system, and two outputs of the distributor. After the. A variable phase shifter operated by the signal detected by the time division error detector, a 90° hybrid, and a 5PDT switch controlled by the trigger pulse generator are connected, connected to the mixer for the error channel, and connected to the divider. 1. A monopulse radar receiver characterized in that one output is connected to the above-mentioned mixer for a SUM channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15820183A JPS6049276A (en) | 1983-08-30 | 1983-08-30 | Monopulse radar receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15820183A JPS6049276A (en) | 1983-08-30 | 1983-08-30 | Monopulse radar receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6049276A true JPS6049276A (en) | 1985-03-18 |
Family
ID=15666481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15820183A Pending JPS6049276A (en) | 1983-08-30 | 1983-08-30 | Monopulse radar receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6049276A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549018A (en) * | 1992-05-22 | 1996-08-27 | Fanuc Ltd. | Small-locus machining apparatus |
| CN103529440A (en) * | 2012-07-05 | 2014-01-22 | 上海无线电设备研究所 | Analog channel-multiplexing radar receiver |
-
1983
- 1983-08-30 JP JP15820183A patent/JPS6049276A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549018A (en) * | 1992-05-22 | 1996-08-27 | Fanuc Ltd. | Small-locus machining apparatus |
| CN103529440A (en) * | 2012-07-05 | 2014-01-22 | 上海无线电设备研究所 | Analog channel-multiplexing radar receiver |
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