资源简介
VPI 16QAM载波相位恢复程序，可以应用于通信系统传输16QAM信号，在接收端就行DSP处理时候的载波相位恢复
代码片段和文件信息
%Example DSP procedure for BER_mQAM_DSP module.
function out=Post_S_DSP_Phase_16QAM（CxIQIQUserParams UserParamsVolatile）;
%This procedure demonstrates phase correction algorithm for
%16QAM modulation format.
%number of bits per symbol
BitsPerSymbol=UserParams（1）;
NPreSymbols=UserParams（2）; %Number of pre-symbols used for phase estimation
Na=2*NPreSymbols+1; %number of symbols used for phase estimation
%Number of points on circles
PointsPerCircle = [4 8 4];
%Phase shifts on circles
CirclePhaseShift = [pi/4 0.0 pi/4];
% Averaging coefficients
AveragingCoefficient = [0.25 0.0 0.25]; %zero in the middle means that the points on the middle circle will not be accounted for
% Thresholds to distinguish points on constellation circles
D = [（sqrt（ 1^2+1^2 ）+sqrt（1^
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