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Moving target identifying system in a base station radar unit for specifying information about moving targets carrying a mobile station radar unit

  • US 5,594,447 A
  • Filed: 06/01/1995
  • Issued: 01/14/1997
  • Est. Priority Date: 01/11/1995
  • Status: Expired due to Fees
First Claim
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1. A moving target identifying system comprisinga base station radar unit comprising:

  • a question generator which generates a plurality of predetermined questions,a base station transmitter which modulates and outputs said plurality of question signals output by said question generator,a base station antenna which radiates the output of said base station transmitter outside said base station, and receives signals from outside said base station,a base station receiver which processes signals received by said base station antenna,a moving target information data base wherein anticipated responses to said plurality of questions are stored,a response demodulator which demodulates a plurality of response signals contained in the output of said base station receiver so as to obtain a plurality of responses, and reads a corresponding plurality of anticipated responses from said moving target information data base based on these demodulated results, andidentifying means which identifies moving targets by comparing said plurality of responses with said plurality of anticipated responses, and further comprises;

    a mobile station radar unit comprising;

    a mobile station antenna which receives transmitted signals from said base station radar unit, and radiates transmitted signals outside said mobile station,a mobile station receiver which processes signals received by said mobile station antenna,a response data base containing pre-stored response data corresponding to said plurality of questions from said base station radar unit,a question demodulator which demodulates said plurality of question signals contained in the output of said mobile station receiver, and reads a corresponding plurality of responses from said response data base based on these demodulated results,a response generator which generates a plurality of response signals based on the output of said question demodulator, anda mobile station transmitter which modulates said plurality of response signals output by said response generator, and outputs the results to said mobile station antenna.

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