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Delay calibration method of satellite navigation receiving set

A technology of satellite navigation and calibration method, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problems of difficult unification of test conditions, uncertainty errors, etc., to improve the accuracy of equipment delay calibration and improve calibration Accuracy, the effect of avoiding errors

Active Publication Date: 2013-12-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0007] The main problem of the existing satellite navigation receiver equipment delay calibration method is: the satellite navigation receiver equipment delay calibration is divided into sections, the test conditions of each part are difficult to unify, and there are uncertain errors

Method used

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  • Delay calibration method of satellite navigation receiving set
  • Delay calibration method of satellite navigation receiving set
  • Delay calibration method of satellite navigation receiving set

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Embodiment Construction

[0043] Combine below Figure 1 to Figure 8 The present invention is further described:

[0044] The flowchart of the time delay calibration of the satellite navigation receiver equipment of the present invention is as follows: Image 6 As shown, the method for calibrating the time delay of the satellite navigation receiver equipment specifically includes the following steps:

[0045] It is characterized in that it comprises the steps:

[0046] Step 101: use satellite navigation signal simulation equipment, N antennas, and equipment delay measurement equipment to establish a device delay calibration environment for a satellite navigation receiving test link; N is a natural number greater than 2;

[0047]Step 102: Perform wired equipment delay calibration on the satellite navigation signal simulation equipment in the satellite navigation receiving test link;

[0048] Step 103: Take 2 antennas from the N antennas to perform a wireless test on the satellite navigation receiving...

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Abstract

The invention discloses a delay calibration method of a satellite navigation receiving set and relates to a full-link set delay calibration method of a time difference monitoring and time service receiving set based on the satellite navigation technology. The delay calibration method of the satellite navigation receiving set includes the following steps that firstly, a satellite navigation receiving set test link set undergoes delay calibration; secondly, the satellite navigation receiving set test link set is combined with the satellite navigation receiving set in a wireless mode and the total set delay is measured; thirdly, the delay of the satellite navigation receiving set is calculated. According to the delay calibration method of the satellite navigation receiving set, full-link wireless set delay calibration can be performed on the satellite navigation receiving set, the calibration precision is high and the advantages of being simple and practical are achieved.

Description

technical field [0001] The invention relates to a method for calibrating the equipment time delay of a satellite navigation receiver, in particular to a method for calibrating the equipment time delay of a timing receiver based on satellite navigation technology for time difference monitoring. Background technique [0002] Satellite navigation systems can provide high-performance timing services through satellite navigation receivers. Usually, two methods can be used to measure and monitor the local time and the time maintained by the satellite navigation system. [0003] In the first method, the satellite navigation receiver is synchronized with the local time. The satellite navigation receiver receives the satellite navigation system signal, performs timing calculation, outputs a 1PPS (pulse / second) signal, and compares it with the 1PPS signal of the local time to obtain the satellite. The time difference between the time maintained by the navigation system and the local t...

Claims

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Application Information

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IPC IPC(8): G01S19/23
Inventor 魏海涛王缚鹏甘兴利叶红军张亚林韩华
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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