parallel channel receiver 中文意思是什麼
parallel channel receiver
解釋
并行通道接收機-
We propose the joint filterbank precoders and decision feedback equalizers structure at first, by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased. then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly, and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model
第一種是採用濾波器組聯合均衡方法將色散通道等價為一組獨立的平坦衰落子通道，以提高接收機的分集增益；另外一種是提出採用離散正則模型將時變色散通道的盲信號處理轉化為時不變多通道模型的盲信號處理，並針對該模型對時變色散通道的盲均衡與盲辨識方法進行了詳細討論。 -
Parallel channel receiver
并行通道接收機 -
The basic principle of ofdm is converting high speed codes flowing in serial transmitting into low speed codes flowing in parallel transmitting, so the period of code is lengthened. it get over multi - channel delay using protective interval. if we deal with the received codes appropriately in receiver, the multi - channel can be matched with single channel, and the effect of channel to signal become multiplication from convolution, so ofdm can eliminate isi effectively
Ofdm的基本原理是將高速串列碼流變為并行傳輸的低速碼流，增大了每個碼元的周期，在傳輸中又使用了保護間隔來對付多徑延遲，在接收端對接收序列進行適當處理后可以將多徑通道等效為單徑通道，並使通道對信號的影響由卷積關系變為乘積關系，從而可以有效地消除isi 。
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