In this letter, we consider the proof of non-stationary channel polarization theory. First we construct a multi-channel stochastic process for the non-stationary channel polarization operation. Then based on this stochastic process, we extend Ar{\i}kan's standard martingale proof method on the average channel capacity and average channel Bhattacharyya parameter, by which we have proved the non-stationary channel polarization theory.

翻译：在此信里,我们考虑非静止频道极化理论的证据。 首先,我们为非静止频道的极化操作构建了一个多频道搜索过程。 然后在这个随机过程的基础上,我们将Ar- ~i}kan的标准马丁格尔验证方法推广到平均频道容量和平均频道Bhattacharyya参数上,我们以此证明了非静止频道的极化理论。