发明名称 Method and apparatus for acquisition and tracking of GPS satellites at low signal to noise levels
摘要 A method of acquisition a signal having a low signal to noise ratio (SNR). The method comprises the steps of: (A) detecting a non-zero power in the signal having the low SNR during a power detect process; (B) receiving the signal having the low SNR by using a signal receiver having an antenna; (C) accumulating a plurality of digital samples of the signal within a predetermined period of time; and (D) employing an algorithm to correct defects in reception of the signal having the low SNR by minimizing a set of parameters selected from the group consisting of: {a carrier frequency offset; a code phase offset; and a data bit misalignment}.
申请公布号 US7362795(B1) 申请公布日期 2008.04.22
申请号 US20040811620 申请日期 2004.03.28
申请人 TRIMBLE NAVIGATION LTD 发明人 LENNEN GARY R.
分类号 H04B1/707 主分类号 H04B1/707
代理机构 代理人
主权项
地址