JPH01134275U

JPH01134275U -

Info

Publication number: JPH01134275U
Application number: JP2991088U
Authority: JP
Priority date: 1988-03-07
Filing date: 1988-03-07
Publication date: 1989-09-13

Description

[Brief explanation of the drawing]

第１図は考案の実施例を示す構成図、第２図は
この考案のクラツタ強度検出部の詳細な構成図、
第３図はこの考案によるクラツタ強度検出の動作
タイムチヤート、第４図は従来のレーダ装置の構
成図である。図において１は送受信共用のアンテナ、２は送
信機部、３は送受切換部、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は表示部、９はクラツタ強度検出部、
１０Ａ，１０Ｂはアナログスイツチ回路、１１Ａ
，１１ＢはＡ／Ｄコンバータ、１２Ａ〜１２Ｄは
ラツチ回路、１３Ａ〜１３Ｃはコンパレータ、１
４はゲート作成回路、１５はラツチタイミング作
成回路、１６は受信ビデオ信号、１７はクラツタ
・ゲート信号、１８は基準信号ゲート信号、１９
はクラツタ・ラツチ・トリガ、２０Ａ〜２０Ｃは
基準信号ラツチトリガ、２１はクラツタ・レベル
信号、２２Ａ〜２２Ｃは基準信号レベル信号、２
３Ａ〜２３Ｃはクラツタ・レベル指示信号である
。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。 Fig. 1 is a block diagram showing an embodiment of the invention, Fig. 2 is a detailed block diagram of the clutter intensity detection section of this invention,
FIG. 3 is an operation time chart for detecting clutter intensity according to this invention, and FIG. 4 is a configuration diagram of a 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.
is a local signal generation section, 6 is a receiver section, 7 is a signal processing section, 8 is a display section, 9 is a clutter intensity detection section,
10A, 10B are analog switch circuits, 11A
, 11B are A/D converters, 12A to 12D are latch circuits, 13A to 13C are comparators, 1
4 is a gate generation circuit, 15 is a latch timing generation circuit, 16 is a received video signal, 17 is a clutter gate signal, 18 is a reference signal gate signal, 19
is a clutter latch trigger, 20A to 20C are reference signal latch triggers, 21 is a clutter level signal, 22A to 22C are reference signal level signals, 2
3A to 23C are clutter level indication signals. In addition, the same reference numerals are given to the same or corresponding parts in the figures.

Claims

[Scope of utility model registration request]

A radar device having a target search or tracking function includes a transmitting/receiving antenna that emits transmitted radio waves to the outside and receives reflected waves from the target, a transmitter section that creates high-frequency power pulses, and a transmitter section that generates high-frequency power pulses. a transmission/reception switching unit that performs switching between transmitting radio waves and receiving radio waves from the antenna; a frequency mixer that converts the received radio waves input from the transmission/reception switching unit into an intermediate frequency; A local signal generation section that creates a local signal for conversion into a frequency, a receiver section that amplifies the output of the frequency mixer and outputs it as a video signal, and a receiver section that receives the output of the receiver section and performs distance tracking, angle tracking, and detection. a signal processing section that processes the clutter and creates various triggers, a clutter intensity detection section that creates a reference signal for detecting clutter intensity and supplies it to the antenna, and detects the clutter intensity from the received video, and the output of the signal processing section. and a display section that receives and displays the output of the clutter intensity detection section.