JPS638684U

JPS638684U -

Info

Publication number: JPS638684U
Application number: JP10241586U
Authority: JP
Priority date: 1986-07-03
Filing date: 1986-07-03
Publication date: 1988-01-20

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はループカツプラ
ー、３は送受信機部、４は信号処理部、５はロー
カル信号発生部、６は電力分配器、７はＢＩＴＥ
発生回路、８はオシレータ、９は逓倍器、１０は
パルス変調器、１１はフイルタ、１２はピンアツ
テネータ、１３は分配部、１４はオシレータ、１
５はミキサ、１６はオシレータ、１７はミキサ、
１８はフイルタである。なお、図中同一あるいは
、相当部分は同一符号を付してある。 FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram of a conventional radar device. In the figure, 1 is an antenna, 2 is a loop coupler, 3 is a transceiver section, 4 is a signal processing section, 5 is a local signal generation section, 6 is a power divider, and 7 is a BITE
Generating circuit, 8 is an oscillator, 9 is a multiplier, 10 is a pulse modulator, 11 is a filter, 12 is a pin attenuator, 13 is a distribution section, 14 is an oscillator, 1
5 is a mixer, 16 is an oscillator, 17 is a mixer,
18 is a filter. Note that the same or corresponding parts in the figures are designated by the same reference numerals.

Claims

[Scope of utility model registration request]

It not only has target search and tracking functions, but also
A radar device that has a self-diagnosis function that checks its own radar performance includes a transmitting and receiving antenna that radiates transmitted radio waves to the outside and receives reflected waves from the target, and a receiver and transmitter that generates high-frequency power pulses as transmitted waves and receives waves. a transceiver section that performs amplification and detection; a signal processing section that performs various signal processing; a local signal generation section that creates local signals to convert received waves to intermediate frequencies; and a video pulse creation section for self-diagnosis. A self-diagnosis signal generation circuit that generates the angular error voltage, etc., a power divider that distributes the local signal output from the local signal generation section, and a frequency difference between the distributed local signal that is used in the radar device. An oscillator that outputs frequencies separated by a frequency variable width or more, a frequency conversion mixer that mixes the local signal and the oscillator output, outputs the difference between the two frequencies, and mixes the frequency conversion mixer output. An oscillator that outputs a frequency such that the frequency difference with the local signal of the radar device is an intermediate frequency, and an oscillator that outputs a frequency such that the frequency difference with the local signal is the intermediate frequency by mixing this oscillator and the output of the above frequency conversion mixer. That is, a frequency mixer that outputs a pseudo target signal frequency, a filter that extracts the necessary frequency component of the pseudo target signal from the output of this frequency mixer, and a pulse modulator that pulse modulates the output of the filter with the pulse signal of the self-diagnosis signal generation circuit. a pin attenuator for varying the magnitude of the output of the pulse modulator; a distribution unit for distributing the output of the pin attenuator into a distance system and an angle system, and further adding phase adjustment and error voltage to the angle system and outputting the output; A radar device comprising: a loop coupler that inputs the output from the distribution section to the radar device.