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1. 发明授权

US5727031A Adaptive gain controller 失效
标题翻译：自适应增益控制器
公开(公告)号：US5727031A
公开(公告)日：1998-03-10
申请号：US497228
申请日：1995-06-30
申请人： Torkel C.J. Solve , Antoni Fertner
发明人： Torkel C.J. Solve , Antoni Fertner
IPC分类号： H03G3/00 , H03G3/20 , H04B3/04 , H04B3/10 , H04B7/005 , H04L25/03 , H04M3/00 , H04M3/40 , H04L27/08 , H04L1/38
CPC分类号： H03G3/3089 , H03G3/005 , H04B3/10 , H04M3/40 , H04M3/002 , H04W52/36
摘要： The present invention provides accurate, unbiased adaptive gain control in high speed digital communications systems. The probability of receiving each of a plurality of symbols to be transmitted over a data communications channel is determined for the predetermined communications protocol used over that data communications channel. Based on the probability determined for each symbol, an adaptive gain control adjustment factor is established for each symbol. During active communications, symbols transmitted over the data communications channel are detected, and the adaptive gain control value is selectively adjusted using an adjustment factor established for the detected symbol. Accordingly, adaptive gain control updating in accordance with one embodiment of the invention employs different step sizes for incrementing and decrementing the adaptive gain control value depending on the magnitude of the symbol received.
摘要翻译：本发明在高速数字通信系统中提供精确的，无偏置的自适应增益控制。为通过数据通信信道使用的预定通信协议确定接收通过数据通信信道发送的多个符号中的每一个的概率。基于为每个符号确定的概率，为每个符号建立自适应增益控制调节因子。在活动通信期间，检测通过数据通信信道发送的符号，并且使用为检测到的符号建立的调整因子来选择性地调整自适应增益控制值。因此，根据本发明的一个实施例的自适应增益控制更新采用不同的步长来根据所接收的符号的大小递增和递减自适应增益控制值。

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