JPS63191983A - Logarithmic range radar equipment - Google Patents
Logarithmic range radar equipmentInfo
- Publication number
- JPS63191983A JPS63191983A JP62025024A JP2502487A JPS63191983A JP S63191983 A JPS63191983 A JP S63191983A JP 62025024 A JP62025024 A JP 62025024A JP 2502487 A JP2502487 A JP 2502487A JP S63191983 A JPS63191983 A JP S63191983A
- Authority
- JP
- Japan
- Prior art keywords
- range
- logarithmic
- radar
- logarithmic range
- memory
- 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
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はレーダー装置に関し、特に長距離レーダー装置
における長距離受信信号をＰＰＩ表示装置で表示するこ
とを可能とした対数レンジレーダー装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radar device, and more particularly to a logarithmic range radar device that is capable of displaying long-range received signals in a long-range radar device on a PPI display device.
従来、長距離レーダー装置の受信信号を表示するには、
従来の表示レンジが等間隔であったため、ＰＰＩ表示装
置の表示スイープ時間を変更する必要があった。Traditionally, to display the received signal of a long-range radar device,
Since the conventional display range was equally spaced, it was necessary to change the display sweep time of the PPI display device.
上述した従来のレーダー装置は、受信信号を等間隔レン
ジでＰＰＩ表示装置に表示する様になっているので、レ
ーダーの覆域を拡大し長距離の受信信号を表示するため
には、ＰＰＩ表示装置の表示範囲を拡大する必要があっ
た。しかし、表示範囲を従来通シとし、表示スィーブ時
間を変更した場合に、レーダー装置においては、レーダ
ー中心附近に航空機が集中し、表示装置の表示範囲を拡
大する必要があった。しかし、空港用などのターミナル
レーダー装置においては、レーダー中心附近に航空機が
集中した場合に、レーダー中心附近のレーダー受信信号
が見えにくくなるという問題があり、表示距離を長くす
るには限界があった。The conventional radar device described above is designed to display received signals on a PPI display device in an equidistant range, so in order to expand the radar coverage and display long-distance received signals, it is necessary It was necessary to expand the display range. However, when the display range is the same as in the past and the display sweep time is changed, aircraft in the radar device concentrate near the center of the radar, making it necessary to expand the display range of the display device. However, in terminal radar equipment for airports, etc., there is a problem that when aircraft are concentrated near the center of the radar, it becomes difficult to see the radar reception signal near the center of the radar, and there is a limit to how long the display distance can be extended. .
本発明の対数レンジレーダー装置は、受信信号の距離を
検出する手段と、１周期分の受信信号を記憶する手段と
、当該記憶手段において書込みと読み出しの速度を変え
て、対数レンジ時間圧縮を行なう手段とを備えることに
よシ、等間隔レンジを対数レンジに変換して受信信号を
出力するようにしたことを特徴とする。The logarithmic range radar device of the present invention has a means for detecting the distance of a received signal, a means for storing one cycle of the received signal, and a writing and reading speed in the storage means to perform logarithmic range time compression. The present invention is characterized in that, by comprising means, the equally spaced range is converted into a logarithmic range and the received signal is output.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例のブロック図である。FIG. 1 is a block diagram of one embodiment of the present invention.
この実施例は、レーダーアンテナ１、レーダー受信部２
及びコーダ一部３と本発明において付加されたレンジ検
出器４、レンジカウンタ５、メモリー６、対数レンジ変
換器７及びドライバー８とから構成される。This embodiment includes a radar antenna 1, a radar receiving section 2
and a coder part 3, a range detector 4, a range counter 5, a memory 6, a logarithmic range converter 7, and a driver 8 added in the present invention.
レーダー受信部２からレンジ検出器４とメモリー６に受
信ビデオが送られ、レンジ検出器４によ）、入力された
受信ビデオのレンジを検出し、この検出信号を対数レン
ジ変換器７に送り、対数レンジ変換器７からの対数レン
ジ変換信号をもとにメモリー６に対数レンジに対応させ
て、受信信号を読み出す。そして、対数レシジ変換され
た受信信号は、ドラパー８を通して、ＰＰＩ表示装置に
送られる。The received video is sent from the radar receiver 2 to the range detector 4 and memory 6, and the range detector 4 detects the range of the input received video, and sends this detection signal to the logarithmic range converter 7. Based on the logarithmic range conversion signal from the logarithmic range converter 7, the received signal is read out by making it correspond to the logarithmic range in the memory 6. The logarithmically converted received signal is then sent to the PPI display device through the wrapper 8.
第２図は本実施例のタイミング図である。ゼロレンジト
リガー（ａ）は、レーダー装置とＰＰＩ表示装置のゼロ
レンジを決定するための同期トリガーである。従来レン
ジレーダー受信ビデオ（ｂ）は、従来のレーダー装置よ
多出力される受信信号である。FIG. 2 is a timing diagram of this embodiment. The zero range trigger (a) is a synchronous trigger for determining the zero range of the radar device and the PPI display device. The conventional range radar reception video (b) is a received signal that is output multiple times from the conventional radar device.
対数レンジレーダー受信ビデオ（Ｃ）は、対数レンジレ
ーダー装置よ多出力される受信信号である。The logarithmic range radar reception video (C) is a reception signal that is output multiple times from the logarithmic range radar device.
以上説明したように本発明は、レーダー装置受信機内に
対数レンジ変換器を具備することにょシ、長距離レーダ
ー装置において、レーダー中心附近の見えにくさを解消
できるとともに、長距離用表示装置を用いることなしに
、従来のＰＰＩ表示装置に長距離受信信号を表示できる
効果がある。As explained above, the present invention can solve the difficulty of seeing near the center of the radar in a long-range radar device by providing a logarithmic range converter in the receiver of the radar device, and can also use a long-range display device. This has the effect of displaying long-distance received signals on a conventional PPI display device without any problems.
第１図は本発明の一実施例のブロック図、第２図（ａ）
〜（ｃ）は第１図の動作タイミング図である。
工・・・・・・レーダーアンテナ、２・旧・・レーｆ−
受Ｍ部、３・・・・・・コーダ一部、４・・・・・・レ
ンジ検出器、５・・・・・・レンジカウンタ、６・・・
・・・メモリー、７・・・・・・対数レンジ変換器、８
・・・・・・ドライバー、（ａ）・・・・・・ゼロレン
ジトリガー、（ｂ）・・・・・・従来レンジレーダー受
信ビデオ、（Ｃ）・・・・・・対数レンジレーダー受信
ビデオ。
＼・；１、゛・２
”−−７〆Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2(a)
~(c) is an operation timing diagram of FIG. 1. Engineering・・・Radar antenna, 2・Old・Radar f-
Receiver M part, 3...Coder part, 4...Range detector, 5...Range counter, 6...
... Memory, 7 ... Logarithmic range converter, 8
... Driver, (a) ... Zero range trigger, (b) ... Conventional range radar reception video, (C) ... Logarithmic range radar reception video . ＼・;１、゛・２ ”−−７〆
Claims (1)
信機内に具備することによりＰＰＩ表示装置に長距離受
信信号の表示を可能としたことを特徴とする対数レンジ
レーダー装置。A logarithmic range radar device characterized in that a logarithmic converter for converting receiver reception time into a logarithmic range is provided in the receiver, thereby making it possible to display long-distance received signals on a PPI display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025024A JPS63191983A (en) | 1987-02-04 | 1987-02-04 | Logarithmic range radar equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025024A JPS63191983A (en) | 1987-02-04 | 1987-02-04 | Logarithmic range radar equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191983A true JPS63191983A (en) | 1988-08-09 |
Family
ID=12154343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62025024A Pending JPS63191983A (en) | 1987-02-04 | 1987-02-04 | Logarithmic range radar equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191983A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178171A (en) * | 1981-04-27 | 1982-11-02 | Oki Electric Ind Co Ltd | Plan position indication of range scale |
-
1987
- 1987-02-04 JP JP62025024A patent/JPS63191983A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178171A (en) * | 1981-04-27 | 1982-11-02 | Oki Electric Ind Co Ltd | Plan position indication of range scale |
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