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Inertial system precision reliability analysis method and system

An inertial system and analysis method technology, applied in the field of inertial system accuracy reliability analysis methods and systems, can solve problems such as difficulty in reference values, and achieve the effect of quantifying work accuracy

Active Publication Date: 2021-09-28
TIANJIN NAVIGATION INSTR RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The analysis of the accuracy index is usually carried out during the factory inspection and delivery acceptance of the inertial system. It will not be analyzed after the official use, and there is a certain risk of use for the user. Therefore, it is necessary to regularly re-inspect the inertial system. With the increasing requirements for the precision index of the inertial system, it is more difficult to obtain the reference value, which puts forward higher requirements for the user's funds and personnel

Method used

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  • Inertial system precision reliability analysis method and system
  • Inertial system precision reliability analysis method and system

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Embodiment Construction

[0029] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0030] An inertial system accuracy reliability analysis method, such as figure 1 shown, including the following steps:

[0031] Step 1. According to the data of the inertial components (including but not limited to gyroscopes and accelerometers) and temperature sensors of the inertial system, the working data of the inertial system and the carrier are obtained;

[0032] The concrete steps of described step 1 include:

[0033] (1) Data acquisition and calculation, through the inertial components and temperature sensors in the inertial system, obtain and calculate relevant data: including movement speed, acceleration, turning angle, elevation, inertial system temperature and carrier temperature.

[0034] (2) Analysis of the working data of the inertial system, which is used to analyze the working data of the eight kinds of inertial systems from the...

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Abstract

The invention relates to an inertial system precision reliability analysis method and system, and the method comprises the following steps: 1, obtaining the working data of an inertial system and a carrier according to the data of an inertial element and a temperature sensor of the inertial system; and 2, comparing the working data obtained in the step 1 with environmental data required by the optimal precision of the inertial system, and carrying out precision reliability analysis on the inertial system. The method can better quantify the working precision of the inertial system in the reference-free region.

Description

technical field [0001] The invention belongs to the technical field of inertial navigation, in particular to an inertial system precision reliability analysis method and system. Background technique [0002] At present, the accuracy index is the most important index of the inertial system. The analysis of the accuracy index is obtained by comparing the difference between the inertial system measurement value and the reference value, and performing statistical calculations after completing multiple tests. The analysis of the accuracy index is usually carried out during the factory inspection and delivery acceptance of the inertial system. It will not be analyzed after the official use, and there is a certain risk of use for the user. Therefore, it is necessary to regularly re-inspect the inertial system. With the increasing requirements for the precision index of the inertial system, it is more difficult to obtain the reference value, which puts forward higher requirements f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 沈扬清李琳侯志宁刘康
Owner TIANJIN NAVIGATION INSTR RES INST