公开(公告)号：US20170163353A1

公开(公告)日：2017-06-08

申请号：US15307832

申请日：2014-12-01

Applicant: South China University of Technology

Inventor： Fangjiong CHEN ,  Beixiong Zheng ,  Shaoe LIN ,  Mengna Luo ,  Fei JI ,  Hua Yu

IPC: H04B11/00

CPC classification number: H04B11/00 ,  H04B13/02

Abstract: Disclosed are an adaptive RLS decision feedback equalizing system, characterized by comprising: an error code cross-correlation module, an equalization module, a decision feedback unit, a coefficient updating unit and an autocorrelation estimation module. Also disclosed are an implementation method of the adaptive RLS decision feedback equalizing system, comprising the following steps: 1) setting an initial value of c0 for a filtering coefficient; 2) generating a filtering output signal yk; 3) computing an error code cross-correlation result Ik; 4) updating the filtering coefficient ck−1 to ck; 5) updating an autocorrelation inverse matrix estimation result Pk−1 to Pk according to a forget constant factor w and an equalizer input signal sequence rk; 6) repeating step 2) to step 5), until the equalizer coefficient converges. The present invention can achieve appreciable system performance by requiring only a small number of training signals, as well as reliable transmission adapted for the receiving terminal in a complex hydroacoustic environment, and rapid adaptive equalization.