PULSE TRAIN SEPARATING AND DISCRIMINATING SYSTEM,申请号JP19790172364-传众专利搜索

PULSE TRAIN SEPARATING AND DISCRIMINATING SYSTEM

申请公布号：JPS5694282(A)

申请号：JP19790172364

申请日期：1979.12.27

申请公布日期：1981.07.30

申请人：

BOEICHO GIJUTSU KENKYU HONBUCH;FUJITSU LTD

发明人：SAWADA MICHIHIRO;TAMURA MASARU;OGAWA SHINPEI

分类号：G01S7/28;G01S7/292

主分类号：G01S7/28

摘要：<p>PURPOSE:To eliminate the need for using multiple filters and make constitution simple by performing searching and leading out of specific pulses by using a controllable filter. CONSTITUTION:An input signal enters a branching circuit 3 by passing through an electronic tuning filter 2 from an input terminal 1. The one of the outputs branched by the circuit 3 is demodulated by a demodulating circuit 4 and is made into a pulse train corresponding to the modulating signal of a radar signal. This pulse train is amplified with a video amplifier 5, and is collated with the data having beforehand been stored in a collating circuit 8. The data of the matched pulse width and repetitive period are inputted to a decision circuit 6. The circuit 6 compares and decides the data from the circuit 8 and the video data and transmits the signal corresponding to the matched pulse width and repetitive period to filter control circuit 9 and a gate control circuit 11.</p>