至少一个导频信道输出提供确定估计分组差错率的基础。
At least one pilot channel output provides a basis to determine an estimated packet error rate.
在信道输出端进行子空间分解，如果信号子空间是由信道唯一决定的，那么信道参数可被唯一估计为一个常数。
In the channel output, subspace decomposition is employed. If the signal subspace can be exclusively decided by the channel, the parameter of the channel can be estimated by a constant.
求出多相滤波器频率响应后，用多个基于相同原型滤波器的数字滤波器将其划分为多个信道输出以达到降低信道输出速率的目的。
After polyphase filter frequency response was done, the channel out rate was fallen, and it was divided into multi-channel by the several digital filters based on the same archetype filter.
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