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Phase coherent radar system using fast frequency agile waveform synthesis

  • US 5,726,657 A
  • Filed: 03/22/1996
  • Issued: 03/10/1998
  • Est. Priority Date: 03/22/1996
  • Status: Expired due to Fees
First Claim
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1. Apparatus comprising:

  • a waveform generator for generating an interleaved waveform and a second output coherent with said waveform, said waveform generator including a frequency agile synthesizer capable of changing its output frequency to produce said interleaved waveform using multiple frequencies, a frequency and phase of said waveform, and said second output, being based on said output of said frequency synthesizer;

    an antenna coupled to said waveform generator for transmitting said waveform, for receiving a return signal, and for generating at least one antenna output signal on the basis of said return signal;

    a receiver coupled to said antenna and to said waveform generator to detect said return signal as a frequency interleaved signal, an interleaving of said frequency interleaved signal being selected to define an unambiguous range of said antenna, said receiver receiving said antenna output signal and said second output and converting said return signal on the basis of said second output signal to produce a converted signal; and

    a processor for processing said converted signal to derive target data.

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