Dear all, My question is about estimation I found in many algorithms. x(n)=b*x(n)+(1-b)*x(n-1);-----> (DCT and DFT LMS, power normalized-NLMS) and sometimes its: x(n)=b1*x(n)+(1-b1)*x(n-1) if x(n)>x(n-1); x(n)=b2*x(n)+(1-b2)*x(n-1); I'm working in echo cancellation... I want to know how derive it and the effects on my x(n) signal... References are welcome... thank you

# estimation

Started by ●March 5, 2009

Reply by ●March 5, 20092009-03-05

On Mar 5, 11:45�am, "mmoctar" <mmoc...@gmail.com> wrote:> Dear all, > My question is about estimation I found in many algorithms. > x(n)=b*x(n)+(1-b)*x(n-1);-----> (DCT and DFT LMS, power normalized-NLMS) > and sometimes its: > x(n)=b1*x(n)+(1-b1)*x(n-1) if x(n)>x(n-1); > x(n)=b2*x(n)+(1-b2)*x(n-1); > > I'm working in echo cancellation... > I want to know how derive it and the effects on my x(n) signal... > References are welcome... > thank youAdaptive Filter Theory Simon Haykin: http://www.amazon.com/Adaptive-Filter-Theory-Simon-Haykin/dp/0130901261/ref=pd_bbs_1?ie=UTF8&s=books&qid=1236274152&sr=8-1