JPS6058568A - Echo generating apparatus for three-dimensional radar - Google Patents
Echo generating apparatus for three-dimensional radarInfo
- Publication number
- JPS6058568A JPS6058568A JP16729783A JP16729783A JPS6058568A JP S6058568 A JPS6058568 A JP S6058568A JP 16729783 A JP16729783 A JP 16729783A JP 16729783 A JP16729783 A JP 16729783A JP S6058568 A JPS6058568 A JP S6058568A
- Authority
- JP
- Japan
- Prior art keywords
- rom
- radar
- dimensional radar
- echo
- subtraction
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（ａｌ 発明の技術分野
本発明は三次元レーダーに使用するエコー発生装置、特
に二次元レーダー用エコー発生装置を安価に改良できる
三次元レーダー用エコー発生装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an echo generator for use in a three-dimensional radar, and particularly to an echo generator for a three-dimensional radar that can improve an echo generator for a two-dimensional radar at a low cost. .
（ｂｌ 従来技術と問題点
位相周波数複合ペンシルビーム走査方式の三次元レーダ
ー装置は、飛行物体の高さを測定する為に、周波数の異
なる三本のビームを放射すると共に、これらビーム′群
を仰角方向に振って、各ビームの受信信号の振幅を比較
して仰角をめている。(bl) Prior art and problems A three-dimensional radar device using a phase-frequency compound pencil beam scanning method emits three beams with different frequencies in order to measure the height of a flying object. The angle of elevation is determined by swinging the beam in different directions and comparing the amplitudes of the received signals of each beam.
此の三次元レーダー装置を取り扱うオペレータを訓練す
る為に、模擬信号を出力する三次元用エコー発生装置が
必要となる。然しなから高度計測機能を持っている高精
度の三次元レーダー用のエコー装置が無く、オペレータ
の訓練を行うのに支障を来すと言った欠点があった。In order to train operators who handle this three-dimensional radar device, a three-dimensional echo generator that outputs a simulated signal is required. However, it lacked a high-precision three-dimensional radar echo device with an altitude measurement function, which caused problems in operator training.
（Ｃ１発明の目的
以上従来の欠点に鑑み本発明は、高積度のエコー信号を
発生でき、しかも製作が容易で安価な二次元レーダー用
エコー発生装置を提供することを目的とするものである
。(C1 Purpose of the Invention) In view of the drawbacks of the conventional art, an object of the present invention is to provide an echo generator for a two-dimensional radar that can generate echo signals of high density, is easy to manufacture, and is inexpensive. .
（ｄｌ 発明の構成
簡単に述べると本発明の三次元レーダー用エコー発生装
置は、距離と方位との二次元レーダー用エコー発生装置
に、仰角データとレーダー仰角との減算を行う減算回路
と前記減算回路により計算される減算値によって検索さ
れるアンテナパターン・データを格納している記憶部（
ＲＯＭ）とを付設し、各ビーム角度に対応する前記減算
と前記ＲＯＭ検索を時分割にて行い、該１２０Ｍの出力
をそれぞれ遅延回路にて同期を取って、エコー信号とす
ることを特徴とするものである。(dl Structure of the Invention Briefly stated, the three-dimensional radar echo generator of the present invention includes a two-dimensional radar echo generator for distance and azimuth, a subtraction circuit for subtracting elevation angle data and radar elevation angle, and a subtraction circuit for subtracting elevation angle data and radar elevation angle). A storage unit (where the antenna pattern data is stored that is searched by the subtraction value calculated by the circuit)
ROM), the subtraction and the ROM search corresponding to each beam angle are performed in a time-division manner, and the 120M outputs are synchronized by delay circuits and used as echo signals. It is something.
（ｅ） 発明の実施例
以下本発明の実施例を図によって詳細に説明するう
第１図は本発明の三次元レーダー用エコー発生装置を示
す一実施例の要部ブロック図、第２図は本発明の要部出
力波形図である。(e) Embodiments of the Invention Below, embodiments of the present invention will be explained in detail with reference to the drawings. Fig. 1 is a block diagram of a main part of an embodiment showing an echo generator for a three-dimensional radar according to the invention, and Fig. 2 is a block diagram of a main part of an embodiment of the present invention. FIG. 3 is a diagram of main part output waveforms of the present invention.
図において、１は航跡データ、２は距離メモリ、３は減
算回路、４は仰角ＲＯＭ、５は減算器、６ババターンデ
ータ・ＲＯＭ、７はＤ／Δコンバータ、８ば制御回路、
９−１と９−２と９−３はスイッチ、１０−１と１０−
２と１０−３は変調器、１１−１と１１−２と１１−３
は減衰器、１２−１と１２−２は遅延回路をそれぞれ示
す。In the figure, 1 is track data, 2 is a distance memory, 3 is a subtraction circuit, 4 is an elevation ROM, 5 is a subtracter, 6 is a turn data/ROM, 7 is a D/Δ converter, 8 is a control circuit,
9-1, 9-2 and 9-3 are switches, 10-1 and 10-
2 and 10-3 are modulators, 11-1, 11-2 and 11-3
is an attenuator, and 12-1 and 12-2 are delay circuits, respectively.
以下第２図を参照しながら説明する。第１図の点線で囲
む部分は二次元用エコー装置であり、図は細部を省略し
である。航跡データ１は例えば、ＲＡＭ等に格納されて
おり、この航跡データ１の距離データは距離メモリ２に
入力される。方位角データはレーダ方位角とともに減算
回路３に入力され、差値が減算回路３から出力され距離
メモリ２に入力される。上記した距離データと差値とに
依って、距離メモリ２に距離データがセットされる。レ
ーダからのトリガパルスにより距離メモリ２が検索され
、航跡パルスを出力しスイッチ９−３に至る。レーダー
装置からのニヒームの仰角は、（＄角ＲＯＭ ４に格納
されている。ごのビーム（ｒｐ角はスイッチ９−１に依
って読め取られ減算器５に入力される。但し此のスイッ
チの動作に本発明の特徴がある。即ちスイッチ群９−１
と９−２と９−３は制御回路８によって時系列即ち、時
分割に切り換えが行われる。従って減算器５は各ビーム
の仰角差を順次算出し、パターンデータ・ＲＯＭ ６を
検索し、仰角方向の減衰値を取り出しＤ／Δフンハータ
７にてディジタル値をアナログ値に変換し、スイッチ９
−２を介して減衰器１ｉ−ｉに入力される。但し、スイ
ッチ９−２はスイッチ９−１ と同期して作動する。此
の時のＤ／Ａコンバータの出力は第２図（８１に示すよ
うになる。上記した航跡パルスはスイッチ９−３を介し
て、変調器１０−１にて基準周波数をこの航跡パルスで
変調し、此れも又減衰器１１−１に入力され、減衰器１
１−１は変調器１０−１の出力をＤ／Ａコンバータの出
力に応じて減衰し、第２図ｆｂ）の波形を得る。各ビー
ム毎の減衰器１１−２と１１−３は時分割されており、
図に示すように出力時間が異なる。各減衰器１１−１と
１１−２には遅延回路１２−１と１２−２が設けてあり
、各ビームによる時分割による時間差を同期して第２図
（Ｃ１の波形をｉＭる。此の波形が三次元レーダー用エ
コー信号である。This will be explained below with reference to FIG. The part surrounded by the dotted line in FIG. 1 is a two-dimensional echo device, and the details are omitted from the figure. The track data 1 is stored in, for example, a RAM or the like, and the distance data of the track data 1 is input into the distance memory 2. The azimuth data is input to the subtraction circuit 3 together with the radar azimuth, and a difference value is output from the subtraction circuit 3 and input to the distance memory 2. Distance data is set in the distance memory 2 based on the distance data and the difference value described above. The distance memory 2 is searched by the trigger pulse from the radar, and a wake pulse is outputted to the switch 9-3. The elevation angle of Niheem from the radar device is stored in the angle ROM 4. The operation of the present invention is characterized by the operation of the switch group 9-1.
9-2 and 9-3 are switched in time series, that is, in a time division manner, by the control circuit 8. Therefore, the subtracter 5 sequentially calculates the elevation angle difference of each beam, searches the pattern data/ROM 6, takes out the attenuation value in the elevation direction, converts the digital value to an analog value at the D/Δ Hunharter 7, and converts the digital value to an analog value using the switch 9.
-2 to the attenuator 1i-i. However, switch 9-2 operates in synchronization with switch 9-1. The output of the D/A converter at this time is as shown in FIG. However, this is also input to attenuator 11-1, and attenuator 1
1-1 attenuates the output of the modulator 10-1 according to the output of the D/A converter to obtain the waveform shown in FIG. 2 fb). Attenuators 11-2 and 11-3 for each beam are time-divided,
The output times differ as shown in the figure. Each attenuator 11-1 and 11-2 is provided with delay circuits 12-1 and 12-2, which synchronize the time difference caused by time division by each beam to iM the waveform of C1. The waveform is an echo signal for three-dimensional radar.
（ｆｌ 発明の効果
以上詳細に説明したように本発明の三次元レーダー用エ
コー発生装置は、高精度のエコー信号を発生でき、しか
もパターンデータを時分割するのみであるので、製作が
容易で安価なものとなり、三次元レーダー用エコー発生
装置を製作する上及びオペレータを訓練する上で利点の
多いものとなる。(fl Effects of the Invention As explained in detail above, the three-dimensional radar echo generator of the present invention can generate highly accurate echo signals, and since it only requires time division of pattern data, it is easy and inexpensive to manufacture. This has many advantages in manufacturing echo generators for three-dimensional radar and in training operators.
第１図は本発明の三次元レーダー用エコー発生装置を示
す一実施例の要部ブロック図、第２図は本発明の要部出
力波形図である。
図において、１は航跡データ、２ば距離メモリ、３は減
算回路、４は仰角ＲＯＭ、５は減算器、６はパターンデ
ータ・ＲＯＭ、７はＤ／Ａコンバータ、８は制御回路、
９−１と９−２と９−３はスイッチ、１０−１と１０−
２と１０−３は変調器、１１−１と１１−２と１１−３
は減衰器、１２−１と１２−２は遅延回路をそれぞれ示
す。FIG. 1 is a block diagram of a main part of an embodiment of an echo generator for three-dimensional radar according to the present invention, and FIG. 2 is an output waveform diagram of a main part of the present invention. In the figure, 1 is track data, 2 is a distance memory, 3 is a subtraction circuit, 4 is an elevation ROM, 5 is a subtracter, 6 is a pattern data/ROM, 7 is a D/A converter, 8 is a control circuit,
9-1, 9-2 and 9-3 are switches, 10-1 and 10-
2 and 10-3 are modulators, 11-1, 11-2 and 11-3
is an attenuator, and 12-1 and 12-2 are delay circuits, respectively.
Claims (1)
角データとレーダー仰角との減算を行う減算回路と前記
減算回路により計算される減算値によって検索されるア
ンテナパターン・データを格納している記憶部（ＲＯＭ
）とを付設し、各ビーム角度に対応する前記減算と前記
ＲＯＭ検索を時分割にて行い、該ＲＯＭの出力をそれぞ
れ遅延回路にて同期を取って、エコー信号とすることを
特徴とする三次元レーダー用エコー発生装置。A two-dimensional radar echo generator for distance and azimuth includes a subtraction circuit for subtracting elevation angle data from the radar elevation angle, and a memory storing antenna pattern data searched by the subtraction value calculated by the subtraction circuit. Part (ROM
), the subtraction and the ROM search corresponding to each beam angle are performed in a time-division manner, and the outputs of the ROM are synchronized by delay circuits to produce echo signals. Former radar echo generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16729783A JPS6058568A (en) | 1983-09-09 | 1983-09-09 | Echo generating apparatus for three-dimensional radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16729783A JPS6058568A (en) | 1983-09-09 | 1983-09-09 | Echo generating apparatus for three-dimensional radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6058568A true JPS6058568A (en) | 1985-04-04 |
Family
ID=15847136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16729783A Pending JPS6058568A (en) | 1983-09-09 | 1983-09-09 | Echo generating apparatus for three-dimensional radar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6058568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254086A (en) * | 1986-01-28 | 1987-11-05 | Nec Corp | Simulation signal generator |
-
1983
- 1983-09-09 JP JP16729783A patent/JPS6058568A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254086A (en) * | 1986-01-28 | 1987-11-05 | Nec Corp | Simulation signal generator |
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