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LOW COST, HIGH PERFORMANCE GPS/GNSS RECEIVER ARCHITECTURE

  • US 20100208775A1
  • Filed: 09/15/2008
  • Published: 08/19/2010
  • Est. Priority Date: 09/14/2007
  • Status: Active Grant
First Claim
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1. A low-cost GPS/GNSS receiver for receiving a satellite signal at an RF frequency (fRF), the GPS/GNSS receiver comprising:

  • a front end section for receiving the satellite signal and generating a digital complex signal having a first bandwidth, the received satellite signal being converted into a complex signal before digitizing;

    a signal capturing section for searching for and acquiring the satellite signal, the signal capturing section including a capture memory;

    a baseband processor for tracking the acquired satellite signal; and

    a signal splitter coupled to the front end section, the signal splitter splitting the digital complex signal into two bandwidths,wherein the signal splitter generates a narrowband digital complex signal having a second bandwidth substantially smaller than the first bandwidth, provides the narrowband digital signal to the capture memory, and provides the wider first bandwidth digital complex signal to the baseband processor.

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