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

摘要

A large bandwidth communication system has a transmitter to transmit signals over a selectable frequency operating range and a receiver having a first mixer for mixing an LO1 signal with received transmit signals. The receiver has a first IF for processing signals received from the first mixer. A frequency synthesizer generates frequency signals for application to at least a transmit mixer in the transmitter and to at least the first mixer in the receiver. A computer system selects and applies a modified frequency value to at least one of plural frequencies used in the system 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, with the modified frequency value selected as a function of the system operating frequency and stored spurious amplitude data so as 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.