JPS6372574U

JPS6372574U -

Info

Publication number: JPS6372574U
Application number: JP16533786U
Authority: JP
Priority date: 1986-10-28
Filing date: 1986-10-28
Publication date: 1988-05-14

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例を示す構成図、第２
図はこの考案の妨害波検出回路の詳細な構成図、
第３図はこの考案による妨害波検出ゲートのタイ
ムチヤート、第４図は従来のレーダ装置の構成図
、第５図は従来のレーダ装置の妨害波検出ゲート
や能信パルス等のタイムチヤートである。図において１は送受信共用のアンテナ、２は送
信機部、３は送受切替部、４は周波数ミキサ、５
はローカル信号発生部、６は受信機部、７は信号
処理部、８は従来の妨害波表示部、９は切替回路
、１０は妨害波検出回路、１１は妨害波表示部、
１２はリセツト回路、１３はゲート位置設定回路
、１４は送信パルス、１５はレンジゲート、１６
は従来の妨害波検出ゲート、１７は受信機出力の
実ビデオ、１８は実ビデオを拡大した追尾ビデオ
、１９は追尾（前）ゲート、２０は追尾（後）ゲ
ート、２１は捕捉（前）ゲート、２２は捕捉（後
）ゲート、２３〜２６は妨害波検出ゲート、２７
は追尾か捜索かを知らせるステータス信号、２８
は検出回路出力信号、２９は検出回路をリセツト
するためのリセツト信号、３０Ａ〜３０Ｋはバツ
フアアンプ、３１はセレクタ、３２Ａ〜３２Ｐは
ワンシヨツトマルチバイブレータ、３３Ａ〜３３
Ｂは可変抵抗器、３４Ａ〜３４Ｄはゲート回路、
３５は基準電圧、３６Ａ〜３６Ｄはコンパレータ
、３７Ａ〜３７Ｄはフリツプフロツプ、３８Ａ〜
３８Ｃはアンド回路、３９Ａ，２９Ｂはオア回路
、４０Ａ〜４０Ｃはランプドライバー回路、４１
ＡはＣＷの妨害波を知らせる表示ランプ、４１Ｂ
はパルスの妨害波を知らせる表示ランプ、４１Ｃ
は妨害波の存在を知らせるアンダージヤム表示ラ
ンプである。なお、図中同一あるいは相当部分に
は同一符号を付してある。 Figure 1 is a configuration diagram showing an embodiment of this invention, Figure 2
The figure shows a detailed configuration diagram of the interference wave detection circuit of this invention.
Fig. 3 is a time chart of the interference wave detection gate according to this invention, Fig. 4 is a configuration diagram of a conventional radar device, and Fig. 5 is a time chart of the interference wave detection gate, Noshin pulse, etc. of the conventional radar device. . In the figure, 1 is an antenna for both transmitting and receiving, 2 is a transmitter section, 3 is a transmitting/receiving switching section, 4 is a frequency mixer, and 5 is a transmitting/receiving antenna.
1 is a local signal generation section, 6 is a receiver section, 7 is a signal processing section, 8 is a conventional interference wave display section, 9 is a switching circuit, 10 is an interference wave detection circuit, 11 is an interference wave display section,
12 is a reset circuit, 13 is a gate position setting circuit, 14 is a transmission pulse, 15 is a range gate, 16
is a conventional interference wave detection gate, 17 is a real video of the receiver output, 18 is a tracking video that is an enlarged version of the real video, 19 is a tracking (front) gate, 20 is a tracking (back) gate, and 21 is a capture (front) gate. , 22 is a capture (post) gate, 23 to 26 are interference wave detection gates, 27
is a status signal indicating tracking or search, 28
is a detection circuit output signal, 29 is a reset signal for resetting the detection circuit, 30A to 30K are buffer amplifiers, 31 is a selector, 32A to 32P are one shot multivibrators, 33A to 33
B is a variable resistor, 34A to 34D are gate circuits,
35 is a reference voltage, 36A to 36D are comparators, 37A to 37D are flip-flops, and 38A to 37D are flip-flops.
38C is an AND circuit, 39A and 29B are OR circuits, 40A to 40C are lamp driver circuits, 41
A is an indicator lamp that indicates CW interference waves, 41B
is an indicator lamp that indicates pulse interference waves, 41C
is an under-jam indicator lamp that indicates the presence of interference. In addition, the same reference numerals are given to the same or corresponding parts in the figures.

Claims

[Scope of utility model registration request]

In radar equipment that not only has a target search or tracking function but also has the function of detecting interference waves from the target, a transmission/reception function that emits transmitted radio waves to the outside and receives reflected waves and interference waves from the target. A shared antenna, a transmitter section that creates high-frequency power pulses, a transmission/reception switching section that switches between transmitting radio waves from the transmitter section and receiving radio waves from the antenna, and from the transmission/reception switching section. A frequency mixer that converts the frequency of input received radio waves to an intermediate frequency, a local signal generator that creates a local signal for converting the received radio waves to an intermediate frequency, and a local signal generator that amplifies the output of the frequency mixer and converts it into a video signal. There is a receiver section that outputs the output, a signal processing section that receives the output of the receiver section, processes distance tracking and angle tracking, and creates various gates and triggers, and the output of the receiver section is input, and the signal is Existing interference waves are detected separately in search mode and tracking mode, and in tracking mode, four gates are created for detecting interference waves, and the directionality of interference waves entering the tracking gate is determined by these gates. an interference wave detection circuit that detects and outputs a signal to switch to memory tracking mode, and an interference wave display unit that determines and displays the type of interference wave,
The above interference wave detection circuit includes a switching circuit that switches the trigger for creating an interference wave detection gate in search mode and tracking mode, and a switching circuit that moves the outer two of the four detection gates within a certain range in tracking mode. What is claimed is: 1. A radar device comprising: a gate position setting circuit that can perform a reset signal; and a reset circuit that sends a reset signal to an interference wave detection circuit.