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A correctness inspection system for navigation message data of shipborne satellite navigation equipment based on self-calculation

A technology for navigation messages and inspection systems, applied in satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve problems such as lack of flexibility and dependence on spacecraft data, and achieve the effect of improving efficiency

Active Publication Date: 2021-06-11
PLA NO 63686 CORPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a self-calculation-based shipborne satellite navigation device navigation message data correctness inspection system for the above-mentioned prior art, which can overcome the problems of relying on spacecraft data and lack of flexibility in the prior art. question

Method used

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  • A correctness inspection system for navigation message data of shipborne satellite navigation equipment based on self-calculation
  • A correctness inspection system for navigation message data of shipborne satellite navigation equipment based on self-calculation
  • A correctness inspection system for navigation message data of shipborne satellite navigation equipment based on self-calculation

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Embodiment 1

[0036] like figure 1 As shown, the embodiment of the present application provides a self-calculation-based system for checking the correctness of navigation message data of shipborne satellite navigation equipment, which consists of three application programs: format conversion application 1, data processing application 2, and format recording application 3 Module composition. in:

[0037] Format conversion application program 1 is the interface layer measurement and control data processing program, which is used to realize the processing and conversion functions of navigation messages, measurement elements, and self-positioning data sent by shipborne satellite navigation equipment, and is deployed in the measurement and control unit server, workstation or industrial computer run.

[0038] The data processing application program 2 can be deployed on the same device or a measurement and control unit server, workstation or industrial computer connected to the network to realiz...

Embodiment 2

[0061] The embodiment of the present application provides an algorithm for judging the consistency of satellite positioning errors based on self-calculation. Using the error calculation principle of the satellite positioning system, the self-consistency of each data of the shipborne satellite navigation equipment can be judged at any time, so as to quickly determine the correctness of the navigation message data sent by the equipment. By converting the measurement elements and self-positioning result information that can be provided by the shipborne satellite navigation equipment at any time into the spacecraft navigation data format according to the dimension, the parameters such as satellite orbit and on-planet clock error provided by the ephemeris calculation module, and the almanac are calculated. The ionosphere, troposphere and other correction coefficients provided by the module, the position and pseudo-range parameters in the simulated spacecraft navigation data provided...

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Abstract

The invention relates to a system for checking the correctness of navigation message data of ship-borne satellite navigation equipment based on self-calculation, which is characterized in that: it includes a format conversion application program for performing data preprocessing of ship-borne satellite navigation equipment, and is connected with the format conversion application program And implement the data processing application program of navigation and positioning calculation, connect with the format conversion application program and data processing application program, and output the format recording application program of intermediate results. The present invention converts the measurement elements and self-positioning result information that can be provided by the shipborne satellite navigation equipment at any time into the spacecraft navigation data format according to the dimension, and then jointly solves it with the navigation text provided by the equipment. The single-satellite positioning system error can be calculated, and whether the data of the shipborne satellite navigation equipment is self-consistent can be judged by calculating whether the average value and standard deviation of the system error exceed the threshold, so as to quickly check and determine the correctness of the navigation message data.

Description

technical field [0001] The present invention relates to the field of navigation data processing of aerospace survey ships, in particular to a self-calculation-based navigation text data correctness inspection system, which relies on the data provided by ship-borne satellite navigation equipment and can output data to it anytime and anywhere correctness is evaluated. Background technique [0002] When the measurement and control system of the aerospace survey ship processes the navigation data of the spacecraft, the input of the satellite navigation message is required, and this part of the data is provided by the ship-borne satellite navigation equipment. The data interface requirements of the satellite navigation message in the measurement and control system are not the same as the international general interface, which needs to be converted by the equipment factory to meet the needs of the measurement and control system. [0003] Since the navigation message data itself h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/20G01S19/07G01S19/08
CPCG01S19/07G01S19/08G01S19/20
Inventor 李永刚胡健李祥明吴云郭力兵孙一妹张龙汪毅饶爱水胡上成
Owner PLA NO 63686 CORPS