JPS62123578U

JPS62123578U -

Info

Publication number: JPS62123578U
Application number: JP1130586U
Authority: JP
Priority date: 1986-01-29
Filing date: 1986-01-29
Publication date: 1987-08-05

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す構成図、第
２図は第１図に示す距離追尾部８と追尾ゲート発
生部１０の詳細図、第３図は本考案による追尾状
態の各部波形を示した図、第４図は従来の追尾状
態の各部波形を示した図、第５図は第４図の追尾
状態に妨害波が存在した時の各部波形を示した図
、第６図は従来のレーダ装置の構成図である。図において、１はアンテナ、２は送信機部、３
は送受切換器、４は混合器、５は局部信号発生部
、６は受信機部、７はビデオ分配器、８は距離追
尾部、９は微分回路入ステータス、１０は追尾ゲ
ート発生部、１１は送信トリガ、１２はビデオ信
号、１３は高速カウンタ、１４は距離カウンタ、
１５は一致検出、１６Ａは追尾ゲートアーリ、１
６Ｂは追尾ゲートレート、１７Ａは微分ゲートア
ーリ、１７Ｂは微分ゲートレート、１８Ａ〜１８
Ｂはサンプルホールド、１９はデイスクリ回路、
２０は電圧周波数変換器である。なお、図中同一
又は相当部分には同一符号を付して示してある。 FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a detailed diagram of the distance tracking section 8 and tracking gate generating section 10 shown in FIG. 1, and FIG. 3 is a waveform of each part in the tracking state according to the invention. Figure 4 is a diagram showing waveforms of various parts in the conventional tracking state, Figure 5 is a diagram showing waveforms of various parts when interference waves are present in the tracking state of Figure 4, and Figure 6 is a diagram showing waveforms of various parts in the tracking state of FIG. 1 is a configuration diagram of a conventional radar device. In the figure, 1 is an antenna, 2 is a transmitter section, and 3
4 is a transmitter/receiver switch, 4 is a mixer, 5 is a local signal generator, 6 is a receiver, 7 is a video distributor, 8 is a distance tracking unit, 9 is a differential circuit input status, 10 is a tracking gate generator, 11 is a transmission trigger, 12 is a video signal, 13 is a high speed counter, 14 is a distance counter,
15 is coincidence detection, 16A is tracking gate early, 1
6B is the tracking gate rate, 17A is the differential gate early, 17B is the differential gate rate, 18A to 18
B is sample hold, 19 is discret circuit,
20 is a voltage frequency converter. It should be noted that the same or equivalent parts in the figures are indicated by the same reference numerals.

Claims

[Scope of utility model registration request]

In a radar device that has the function of searching, detecting, and tracking a target, and also receives interference waves from the target, it is used as a transmitting and receiving antenna that emits high-frequency power pulses to the outside and receives reflected waves and interference waves from the target. , a transmitter section that generates the high-frequency power pulse, a transmitter/receiver switcher that switches between transmission and reception, a mixer that converts the received wave inputted through the antenna and the transmitter/receiver switcher into an intermediate frequency, and a frequency converter. a local signal generation section that generates a local signal to generate a video signal, a receiver section that amplifies the intermediate frequency output signal from the mixer to produce a video signal, and a video distribution having a function of differentiating the output from the receiver section. The vessel and
A distance tracking section that performs distance tracking using the output of the video distributor, a tracking gate generation section that generates gates necessary for distance tracking, and a differential circuit that is input to turn on/off the differential circuit of the video distributor. The radar device is configured to remove unnecessary noise and interference waves other than the tracking video from within the tracking gate by changing the width of the tracking gate according to the tracking mode.