JPS62155377U - - Google Patents
Info
- Publication number
- JPS62155377U JPS62155377U JP4365986U JP4365986U JPS62155377U JP S62155377 U JPS62155377 U JP S62155377U JP 4365986 U JP4365986 U JP 4365986U JP 4365986 U JP4365986 U JP 4365986U JP S62155377 U JPS62155377 U JP S62155377U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- interference
- signals
- detector
- logarithmic
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Radar Systems Or Details Thereof (AREA)
Description
第１図は本考案の干渉信号除去装置の実施例の
構成と信号処理装置を示すブロツク図、第２図は
本考案の作用説明のためのビデオ信号波形図であ
る。
１……入力端子、２……出力端子、３……信号
処理装置、４……干渉信号除去装置、１１……無
帰還型消去器、１２……対数ＣＦＡＲ処理器、１
３……干渉検出器、１４……干渉除去信号発生器
、１５……ノーマル干渉検出器、１６……干渉消
去器、２０１……固定クラツタ領域、２０２……
クリア領域、２０３……移動クラツタ領域、２１
１……干渉信号、２１２……干渉判定レベル。
FIG. 1 is a block diagram showing the structure and signal processing device of an embodiment of the interference signal removal device of the present invention, and FIG. 2 is a video signal waveform diagram for explaining the operation of the present invention. DESCRIPTION OF SYMBOLS 1... Input terminal, 2... Output terminal, 3... Signal processing device, 4... Interference signal removal device, 11... Non-feedback type eraser, 12... Logarithmic CFAR processor, 1
3...Interference detector, 14...Interference cancellation signal generator, 15...Normal interference detector, 16...Interference canceller, 201...Fixed clutter area, 202...
Clear area, 203...Moving clutter area, 21
1...Interference signal, 212...Interference determination level.
Claims (1)
、予め定められたしきい値を越えた信号のスイー
プ間相関を見ることにより干渉信号を検出するノ
ーマル干渉検出器と；レーダ受信信号を受けて不
要な固定目標信号を除去する無帰還型消去器と；
該無帰還型消去器の出力信号を受けこれに対して
対数のＣＦＡＲ処理を施す対数ＣＦＡＲ処理器と
；該対数ＣＦＡＲ処理器の出力信号を受け予め定
められたしきい値を越えた信号のスイープ間相関
を見ることにより干渉信号を検出する干渉検出器
と；前記ノーマル干渉検出器の干渉判定信号およ
び前記干渉検出器の干渉判定信号を受けて少なく
ともいずれかの干渉判定信号が干渉の検出を示す
場合に干渉除去ゲート信号を発生する干渉除去信
号発生器と；前記干渉除去ゲート信号を受けて、
レーダ信号処理装置からの信号の通過を阻止する
干渉除去器と；を有することを特徴とする干渉信
号除去装置。 A normal interference detector receives a signal proportional to the intensity of the radar received signal and detects interference signals by looking at the correlation between sweeps of signals exceeding a predetermined threshold; a non-feedback eraser that removes a fixed target signal;
a logarithmic CFAR processor that receives the output signal of the non-feedback eraser and performs logarithmic CFAR processing on the output signal; receives the output signal of the logarithmic CFAR processor and sweeps the signal that exceeds a predetermined threshold; an interference detector that detects an interference signal by looking at a correlation between the signals; and upon receiving an interference determination signal of the normal interference detector and an interference determination signal of the interference detector, at least one of the interference determination signals indicates detection of interference. an interference cancellation signal generator for generating an interference cancellation gate signal when the interference cancellation gate signal is received;
An interference signal canceling device comprising: an interference canceller that blocks passage of a signal from a radar signal processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4365986U JPS62155377U (en) | 1986-03-25 | 1986-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4365986U JPS62155377U (en) | 1986-03-25 | 1986-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62155377U true JPS62155377U (en) | 1987-10-02 |
Family
ID=30860726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4365986U Pending JPS62155377U (en) | 1986-03-25 | 1986-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62155377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012189431A (en) * | 2011-03-10 | 2012-10-04 | Japan Radio Co Ltd | Interference removal device, radar apparatus and interference removal method |
-
1986
- 1986-03-25 JP JP4365986U patent/JPS62155377U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012189431A (en) * | 2011-03-10 | 2012-10-04 | Japan Radio Co Ltd | Interference removal device, radar apparatus and interference removal method |
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