Harris Corporation

Steve R Wynn

Mac Lamar Hartless

Richard Taylor

Richard D Taylor

Symbol sampling in a high time delay spread interference environment includes acquiring () a time varying baseband waveform. The waveform has a signal amplitude that varies between one of a plurality of symbol states. The waveform is sampled () at a rate of m times the symbol rate. During an evaluation time, an error value is calculated () for each of m data sample positions. Each of the error values comprises an average distance between the measured value of the waveform as indicated by the data sample and a closest known symbol value. The error values are used to create an error surface. Thereafter, the error surface is modeled as a quadratic and an optimal sample time is determined () based on finding the time location where the quadratic surface is minimum. A sinc interpolator is then used to resample the data.

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Lynchburg, VA, United States of America

Steve R Wynn