通信原理经典讲义01 白高斯噪声通过某带通或低通型线性系统H ( f ) 后的输出是0 ,均值平稳高斯过程,功率(方差)为σ2
回答: 散射过程最主要的特点是散射粒子的波函数,一般来说,在无穷远处并不为零。而且,入射粒子的能量通常是给定的。散射粒子在无穷元处的波函
由 marketreflections
于 2011-08-06 16:11:28
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