JPS5998375U

JPS5998375U - radar device

Info

Publication number: JPS5998375U
Application number: JP19980782U
Authority: JP
Inventors: 永尾　信明
Original assignee: 三菱電機株式会社
Priority date: 1982-12-23
Filing date: 1982-12-23
Publication date: 1984-07-03

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のレーダ装置を示す図、第２図は第１図に
示したレーダ装置の出力波形図、第３図はこの考案によ
るレーダ装置の〜実施例を示す図、第４図はこの考案に
よるレーダ装置の出力波形図である。図中１はトリガ発生器、２は変調器、３は送信管、４は
分配器、５はミキサ、６はローカル信号発生器、７は周
波数弁別器、８はサンプルホールド回路、９はローカル
ドライバ、１０はマイクロ波遅延回路、１１はタイミン
グ遅延回路である。尚、図中同一部分には同一符号を付して示しである。FIG. 1 is a diagram showing a conventional radar device, FIG. 2 is an output waveform diagram of the radar device shown in FIG. 1, FIG. 3 is a diagram showing an embodiment of the radar device according to this invention, and FIG. FIG. 3 is an output waveform diagram of the radar device according to this invention. In the figure, 1 is a trigger generator, 2 is a modulator, 3 is a transmitting tube, 4 is a distributor, 5 is a mixer, 6 is a local signal generator, 7 is a frequency discriminator, 8 is a sample and hold circuit, and 9 is a local driver , 10 is a microwave delay circuit, and 11 is a timing delay circuit. In addition, the same parts in the figures are indicated by the same reference numerals.

Claims

[Scope of utility model registration request]

A part of the pulsed microwave transmission signal generated in the transmission tube is taken out by a distributor, converted by a mixer into an intermediate frequency signal having a frequency component that is different from the local signal frequency, and then passed through a frequency discriminator to the intermediate frequency signal. In a radar device that controls the local signal frequency by controlling and shifting the local signal frequency so that the frequency of A microwave delay circuit is provided at the input stage of the mixer and sample-hold circuit, respectively, and the intermediate frequency signal and sample-hold control pulse are generated based on the signal delayed by the required time from the transmitted signal to control the local signal frequency. A radar device characterized in that interference due to a noise signal of a transmitter at a transmission timing is reduced by doing so.