摘要
本發明係有關於一種無線通道即時估測的解碼方法及系統,其係對一具有雜訊的接收訊號進行解碼,接收訊號係使用鏈接碼編碼 (concatenation code),首先以 Max-Log-MAP 解碼方法對接收訊號執行一特定次數解碼。再計算接收訊號的一估測振幅,並計算雜訊的一估測變異數。其後,依據雜訊的估測變異數及接收訊號的估測振幅為參考,進而調整接收訊號,以產生一調整接收訊號。最後,改用 Log-MAP 解碼方法對調整接收訊號執行解碼。
A decoding method and system of real-time wireless channel estimation, which decodes a received signal with a noise. The received signal is coded by a concatenation code. At first, the received signal is performed a certain amount of decoding by a Max-Log-MAP decoding procedure. Next, an estimated amplitude of the received signal and an estimated variance of a noise are computed. Then, the received signal is adjusted in accordance with the estimated amplitude and the estimated variance to thereby produce an adjusted received signal. Finally, the adjusted received signal is decoded by a Log-Map decoding procedure.