gainki.m

来自「Cordic算法的Matlab实现」· M 代码 · 共 16 行

%% description
%   this program can be used to compute the gain of CORDIC
%   processing systems at each iterative step
%   Inputs:
%       m, represents the mode of the computing system
%       Fi, elementary shifts for the i-th iteration
%           CAUTION: m and Fi can be both vectors
%   Outputs:
%       Ki, i-th processing gain
%% code
function Ki=gainKi(Fi,m)
Ki=sqrt(1+m.*2.^(-2*Fi));
if(m==-1 && Fi(1)==0)% when m=-1, Fi can't be 0
    Ki(1)=1;
end
end