Invention Application
US20090153399A1 METHOD AND APPARATUS FOR PROCESSING SATELLITE POSITIONING SYSTEM SIGNALS 审中-公开
用于处理卫星定位系统信号的方法和装置

  • Patent Title: METHOD AND APPARATUS FOR PROCESSING SATELLITE POSITIONING SYSTEM SIGNALS
  • Patent Title (中): 用于处理卫星定位系统信号的方法和装置
  • Application No.: US12388316
    Application Date: 2009-02-18
  • Publication No.: US20090153399A1
    Publication Date: 2009-06-18
  • Inventor: Charles AbrahamDonald L. Fuchs
  • Applicant: Charles AbrahamDonald L. Fuchs
  • Main IPC: G01S1/00
  • IPC: G01S1/00
METHOD AND APPARATUS FOR PROCESSING SATELLITE POSITIONING SYSTEM SIGNALS
Abstract:
Method and apparatus for processing a satellite positioning system (SPS) signal is described. In one example, a timing reference related to a SPS time of day is obtained from a wireless communication signal received by a mobile receiver. A bias in a local clock of the mobile receiver with respect to a frame timing of a repeating code broadcast by the satellite is compensated for in response to the timing reference. An expected code delay window is obtained for the SPS signal at the mobile receiver. The SPS signal is correlated with a reference code within the expected code delay window. In another example, an expected code delay window is obtained at the mobile receiver. The mobile receiver selects a sampling resolution in response to a size of the expected code delay window. The SPS signal is sampled at the selected sampling resolution and then correlated with a reference code.
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