公开(公告)号：US08467347B2

公开(公告)日：2013-06-18

申请号：US12912878

申请日：2010-10-27

申请人： Xingxin Gao ,  David P Varodayan

发明人： Xingxin Gao ,  David P Varodayan

IPC分类号： H04W4/00 ,  H04J1/00 ,  H04J3/00 ,  H04B1/709

CPC分类号： H04B1/7073 ,  G01S19/30

摘要： Incoming signals that are sparse in the code-correlation domain, such as CDMA signal (GPS signals being a specific example of such signals) are processed by sampling the incoming signal at irregular time intervals at an average rate that is significantly lower than the Nyquist rate; which in the case of GPS signals is the chip rate of a pseudorandom code sequence that is embedded in the signal. The sampled signal is processed with locally generated signals that are also sampled the same irregular time intervals.

摘要翻译： 在码相关领域中稀疏的输入信号，例如CDMA信号（GPS信号是这种信号的一个具体例子），通过以不小于Nyquist频率的平均速率以不规则的时间间隔对输入信号进行采样来处理 ; 在GPS信号的情况下，嵌入在信号中的伪随机码序列的码片速率。 采样信号用本地生成的信号进行处理，该信号也采用相同的不规则时间间隔进行采样。