Least Square (LS) Similar to linear model,assume s=H J()=∑(xln-s[n)2 whxiong@uestc.edu.cn 10whxiong@uestc.edu.cn Least Square (LS) 10 Similar to linear model, assume J(µ) = X(x[n] ¡ s[n]) 2 s = Hµ