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Pulse radar detection system

  • US 20030193430A1
  • Filed: 05/21/2003
  • Published: 10/16/2003
  • Est. Priority Date: 03/22/2002
  • Status: Active Grant
First Claim
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1. A transmitter for a high resolution radar system, comprising:

  • a microwave oscillator for providing at an output a continuous wave signal at a predetermined frequency, a pulse-former having an input coupled to said output of said oscillator and a first and a second switchable output whereby said oscillator signal can be applied to either output according to a control signal applied to a control terminal of said pulse-former, a switch driver having an output coupled to said control terminal of said pulse-former and operative to selectively switch said output of said pulse-former between said first and second outputs to provide at said first output a pulse comprising a number of said oscillator cycles indicative of a desired pulse to pulse interval and selected according to a range gated time delay, a bi-phase modulator having an input coupled to said first output of said pulse-former to provide at an output a bi-phase modulated signal, and an antenna coupled to said output of said bi-phase modulator for transmitting said bi-phase modulated signal according to a selected object range.

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