crystal8832 发表于 2015-8-26 09:33 
白噪声只是均值为0的平稳序列,存在序列相关可以的
这个好像是不对的。
A random vector (that is, a partially indeterminate process that produces vectors of real numbers) is said to be a white noise vector or white random vector if its components
each have a probability distribution with zero mean and finite variance, and are statistically independent: that is, their joint probability distribution must be the product of the distributions of the individual components