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Radar and other communication systems having large bandwidth and large dynamic range

  • US 5,467,091 A
  • Filed: 07/21/1994
  • Issued: 11/14/1995
  • Est. Priority Date: 07/21/1994
  • Status: Expired due to Fees
First Claim
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1. A large bandwidth communication system comprising:

  • a transmitter system for generating transmit signals over a selectable frequency operating range;

    a receiver system having a first mixer for mixing an LO1 signal with received transmit signals;

    the receiver system having a first IF system for processing signals received from the first mixer;

    a frequency synthesizer system for generating frequency signals for application to at least a transmit mixer in the transmitter and to at least the first mixer in the receiver; and

    a control system for selecting and applying a modified frequency value for at least one of plural frequencies including that of the LO1 signal applied to the first mixer, that of a frequency signal applied to the transmit mixer, and an IF frequency of the first IF system, with the modified frequency value selected as a function of the system operating frequency and stored spurious amplitude data to sidestep spurious signals in portions of the total system frequency operating bandwidth where spurious amplitudes are excessive and otherwise would interfere with quality reception.

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