rake forward 中文意思是什麼
rake forward
解釋
前斜-
The method was correlate search and fft carrier detection, which could solve the problem of the capture of the spread spectrum code under the condition of low snr and big frequency offset. we also put forward a method, shift receiving window and correlate with local sequence, which not only could solve the problem of symbol synchronization but also could acquire the statistics of the multipath. then we utilized the results of the channel estimation and the technology of rake receiver to decode the received spread spectrum sequence and acquire rude information
方案中提出了：相關搜索、 fft檢測信號載波的方法，解決了低信噪比、大頻差條件下擴頻碼的同步捕獲難題；滑動相關完成位同步的方法，解決了低信噪比下的同步問題；在時域利用相關進行通道估計，然後利用rake接收技術完成相關解擴的方法，一定程度上解決了多徑衰落影響解擴性能的問題。 -
A chip - level channel estimation technique with varing step size is brought forward to improve the performance of rake receiver for wcdma downlink. for the first place, the effects of different channel parameters for wcdma downlink channel estimation are analyzed
通道估計是rake接收機的關鍵技術，其目的是獲得不同多徑通道的參數估計值，估計出移動通道的衰落沖激響應，能夠提高rake接收的性能。
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