Based on typicality theorem of the quantum statistical physics, we find that equiprobable distribution corresponding to the priori probabilities hypothesis is not necessary to deduce to the canonical distribution. A more generalized class of distributions can lead to the canonical distribution. 2. 我们在量子统计的典型性定理的基础上发现,在热力学极限下,等概率假设对应的等概率分布并不是导出正则分布的必要条件,存在一类更普遍的分布可以导出正则分布。
Assuming the equiprobable centro-symmetric constellation for modulation, SFCM was proved to be biased due not only to the noise, but also to the irreducible inter-carrier interference aroused by the Doppler spread. 假设采用等概率中心对称星座调制导频符号,我们证明不仅加性白高斯噪声会给估计带来干扰,由多普勒扩展引起的载波间干扰也会引起偏差。