Patent ID: 8045651

Claim:
A method for signal processing, the method comprising: performing by one or more processors and/or circuits: processing a received 8-PSK modulated symbol sequence in a burst process utilizing a gradient search equalization operation, said processing comprising: computing a distance metric value during said gradient search equalization operation wherein said distance metric value is based on at least a portion of said received 8-PSK modulated symbol sequence, a computed channel estimate matrix and a transmitted symbol estimation vector; computing a gradient distance value based on a change in said computed distance metric value in response to a change in said transmitted symbol estimation vector; computing an updated transmitted symbol estimation vector based on a current transmitted symbol estimation vector and said computed gradient distance value; generating a redundancy-based decoded output bit sequence by a frame process based on results from said burst process; feeding back said generated redundancy-based decoded output bit sequence for processing by a subsequent burst process utilizing said gradient search equalization operation; and generating a subsequent redundancy-based decoded output bit sequence by a subsequent frame process based on results from said subsequent burst process.