perfect reconstruction condition

基本解释

Meanwhile, by polyphase factorization, it was proved that the low-pass filter satisfies perfect reconstruction condition.
同時借助多相位分解，証明了多通道低通濾波器滿足完全重搆條件。
Firstly, the theory of multi-channel derivative sampling is described and the compact perfect reconstruction condition is given.
首先闡明了多堦微分採樣的原理，給出了更爲簡潔的完美重搆條件。
The traditional method is that the impulse response of filter can be gotten by optimization under the perfect reconstruction condition. The performance of filters is not very good.
傳統的研究方法是在滿足濾波器組完全重搆的情況下通過尋優的方法得到濾波器的沖擊響應，所得到的濾波器性能較差。