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Method for acquiring accurate sampling frequency of global positioning system

A global positioning system, sampling frequency technology, applied in positioning, radio wave measurement system, beacon system using radio waves and other directions, can solve problems such as multi-time, limited GPS receiver application, consumption, etc. The effect of shortening satellite tracking time

Inactive Publication Date: 2012-08-22
ALTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the GPS receiver must spend a considerable amount of time on satellite tracking
And, limit the application of GPS receiver

Method used

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  • Method for acquiring accurate sampling frequency of global positioning system
  • Method for acquiring accurate sampling frequency of global positioning system
  • Method for acquiring accurate sampling frequency of global positioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The technical solutions of the present invention will be further described in more detail in conjunction with the accompanying drawings and specific embodiments.

[0041] figure 1 It shows a global positioning system (GPS) receiver applying an embodiment of the present invention. figure 2 It shows the method for obtaining the precise sampling frequency of the global positioning system according to an embodiment of the present invention.

[0042] refer to figure 1 and figure 2 , the method for obtaining the precise sampling frequency of the global positioning system can be applied to the GPS receiver 100 .

[0043] The GPS receiver 100 can be a stand-alone device, or it can be integrated with other devices (such as mobile communication devices, computers, etc.).

[0044] The GPS receiver 100 has a radio frequency (RF) 110 .

[0045] First, the radio frequency module 110 of the GPS receiver 100 receives a satellite signal from a satellite 212 in the orbiting satell...

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Abstract

The invention discloses a method for acquiring accurate sampling frequency of a global positioning system (GPS), which is used in a GPS receiver. The method comprises the following steps of: firstly, receiving satellite signals of at least one satellite by utilizing a radio frequency module of the GPS receiver; secondly, calculating a plurality of code delays of the satellite signals at a fixed time interval and calculating the time difference between every two adjacent code delays in all the obtained code delays to obtain a plurality of time differences; thirdly, calculating the average value of all the obtained time differences; and finally, calculating a specific value of the average value multiplied by 1,000 and the fixed time interval to obtain an error value and adding standard sampling frequency of the radio frequency module to the error to obtain new sampling frequency.

Description

technical field [0001] The present invention relates to a global positioning system (global positioning system; GPS), in particular to a method for obtaining an accurate sampling frequency of the global positioning system. Background technique [0002] The Global Navigation Satellite System is also known as the Global Positioning System (GPS). The global positioning system has been limited to military and industrial purposes in the past. With the continuous advancement of science and technology, it has begun to be used in various civilian uses. Generally speaking, GPS products mainly refer to GPS receivers used for various purposes, such as receivers for aviation and marine purposes, car navigation equipment, handheld receivers for mountaineering and leisure, and other types of communication products. The components of general GPS products mainly include internal antennas, chipsets, and external buttons, display panels and other related components. [0003] GPS receivers u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S1/04G01S5/02
Inventor 陈宏升
Owner ALTEK CORP
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