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GPS receiver and related method and apparatus

A technology of GPS receivers and GPS signals, which is applied in the direction of measuring devices, beacon transmitters, instruments, etc., and can solve problems such as difficult transmission of timing information

Active Publication Date: 2012-12-26
U-BLOX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other paths can have timing uncertainty, for example, interrupt pins or input / output ports, so it is difficult to transfer timing information with any precision using parallel signal paths

Method used

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  • GPS receiver and related method and apparatus

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Embodiment Construction

[0014] Referring to the accompanying drawings, a laptop PC is connected to a GPS receiver 10 through a USB PC port and a corresponding cable, wherein the GPS receiver 10 is composed of a GPS RF front end Rx and a GPS antenna. Although the GPS receiver may be an "adapter" type device, thereby omitting the cable, the cable facilitates positioning of the GPS receiver (including the antenna) in a prominent location, thereby increasing the chances of acquiring a GPS signal. For example, if operating indoors, the GPS receiver can be placed near a window.

[0015] In operation, the GPS receiver receives the NAVSTAR SPS GPS signal through the antenna and pre-processes the signal, typically through a passive band-pass filter to minimize out-of-band RF interference, pre-amplification, and down-converting to an intermediate frequency (IF), and analog-to-digital conversion. The resulting GPS signal sample contains the IF signal that remains modulated and also contains all information fro...

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Abstract

A GPS receiver (10) is disclosed comprising a GPS antenna and a GPS RF front-end including an analogue to digital converter for sampling received GPS signals and a processor for outputting a stream of the GPS signal samples and inserting repeated instances of timing data indicating the timing of the sampling of the GPS signals in the stream in place of some of the GPS signal samples. Also disclosed is a corresponding method of providing a position fix and a computer program, computer-readable storage medium and apparatus for the same.

Description

technical field [0001] The present invention relates to a GPS receiver comprising: a GPS antenna and a GPS RF front end comprising an analog-to-digital converter for sampling received GPS signals; and a processor for outputting GPS signals sampling. [0002] The present invention also relates to a corresponding method for providing a position fix and to a computer program, a computer-readable storage medium and an apparatus thereof, wherein the method comprises the steps of: receiving GPS signal samples from a GPS receiver, and processing the GPS signal samples, to determine location targeting. Background technique [0003] The article "Real-time software radio architecture for GPS receivers" by Akos et al. (GPS World, July 2001) discloses "software GPS" in which, as opposed to analog or discrete hardwired components, Or digital signal processor to achieve a large number of GPS signal processing. As shown in Figure 2 of this article, a simplified GPS receiver is provided ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S1/00G01S5/00G01S19/47G01S19/09G01S19/35
CPCG01S5/0036G01S19/35G01S19/09G01S19/24G01S19/29
Inventor 迈克尔·D·詹姆斯
Owner U-BLOX