초록 ▼

A signal processing system in a transmitter/receiver system for reducing undesired amplitude, frequency and/or phase distortions arising due to variations from transmitter pulse to transmitter pulse. A plurality of sequential samples of transmitted pulses are averaged and a plurality of filter coeff

A signal processing system in a transmitter/receiver system for reducing undesired amplitude, frequency and/or phase distortions arising due to variations from transmitter pulse to transmitter pulse. A plurality of sequential samples of transmitted pulses are averaged and a plurality of filter coefficients are determined therefrom. The coefficients are used in a plurality of filters which respond to a plurality of sequential samples of received pulses, the filters providing output signals in which such distortions are reduced.

대표청구항 ▼

A signal processing system for use in a transmitter/receiver system, the transmitter of which includes a transmitter pulse source for providing transmitted pulse signals that may have undesired amplitude, frequency or phase distortions which vary from transmitter pulse to transmitter pulse, and the

A signal processing system for use in a transmitter/receiver system, the transmitter of which includes a transmitter pulse source for providing transmitted pulse signals that may have undesired amplitude, frequency or phase distortions which vary from transmitter pulse to transmitter pulse, and the receiver of which receives returned pulse signals which include said distortions, said receiver including: digitizing means responsive to said transmitted and to said returned pulse signals for providing a sequence of complex digitized samples of said transmitted and returned pulse signals having in-phase and quadrature components thereof; averaging means responsive to a plurality of sequential transmitted pulse signals, each comprising a plurality of complex digitized samples thereof, for providing an average signal representing the average of said sequential pulse signals; means responsive to said average signal and to said sequence of complex digitized samples of said plurality of sequential transmitted pulse signals for determining a plurality of filter coefficients for use with the returned pulse signal samples corresponding to said transmitted pulse signal samples; filter means responsive to a plurality of sequential returned pulse signals, each comprising a plurality of complex digitized samples thereof, and to said plurality of corresponding filter coefficients for providing returned output signals in which said distortions are reduced.