公开(公告)号：US07292624B2

公开(公告)日：2007-11-06

申请号：US10227836

申请日：2002-08-27

申请人： Michael A. Mayor ,  Lester G. Matheson ,  Robert D. Martin ,  John H. Gass ,  Mhairi N. McCune

发明人： Michael A. Mayor ,  Lester G. Matheson ,  Robert D. Martin ,  John H. Gass ,  Mhairi N. McCune

IPC分类号： H04B1/00

CPC分类号： H04B1/7093 ,  H04B1/708

摘要： A Direct Sequence Spread Spectrum receiver is described in which a complex spread spectrum signal is cross correlated by four digitally matched filters. The filters and subsequent multipliers correlate the in-phase and quadrature components as well as the current and previous symbols. The result is a more robust signal acquisition at very low signal to noise ratios.

摘要翻译： 描述了一种直接序列扩频接收机，其中复扩展频谱信号由四个数字匹配滤波器互相关。 滤波器和后续乘法器将同相和正交分量以及当前和先前符号相关。 结果是在非常低的信噪比下更稳健的信号采集。