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Drifting resolving analysis method for gyroscope system test

A technology of system testing and gyro drift, which is applied in the field of gyroscopes, can solve problems such as technical requirements of debuggers, high-technical personnel, manpower and material resources, and lack of unified standards, so as to achieve the effect of tapping its own potential, good economic benefits, and standardizing the testing process

Active Publication Date: 2021-09-24
TIANJIN NAVIGATION INSTR RES INST
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test of the gyroscope system has high technical requirements for the debuggers and consumes a lot of manpower and material resources of the technicians. However, the interpretation results of different personnel are quite different, and there is a lack of uniform standards.

Method used

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  • Drifting resolving analysis method for gyroscope system test
  • Drifting resolving analysis method for gyroscope system test
  • Drifting resolving analysis method for gyroscope system test

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Embodiment Construction

[0088] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0089] A drift solution analysis method for gyroscope system testing, comprising the following steps:

[0090] Step 1. Collect inertial navigation system data (LO, LA, VE, VN, VZ, R, P, HP).

[0091] Step 2. Calculate horizontal gyro drift, azimuth gyro drift, oblique drift, constant drift and random drift according to the data collected in step 1;

[0092] The concrete steps of described step 2 include:

[0093] (1) Calculation of horizontal gyro drift:

[0094] In the static state of the laboratory, the drift of the two horizontal gyroscopes is estimated according to the error relationship of the horizontal damping system:

[0095]

[0096]

[0097] In the formula, δV x , δV y is the system speed error, which is the system speed under static conditions, is the systematic latitude error, which is also known under laboratory conditions...

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Abstract

The invention relates to a drifting resolving analysis method for a gyroscope system test. The drift resolving analysis method comprises the following steps of 1, acquiring inertial navigation system data; 2, calculating the drift of a horizontal gyro and the drift, oblique drift, constant drift and random drift of an azimuth gyro according to the data acquired in the step 1; 3, displaying a gyroscopic drift resolving result in the step 2 on an interface, and synchronously drawing a gyroscopic drift curve graph; and 4, ending the gyroscope system test, and generating a gyroscope system test result according to the drift test result. According to the method, the misjudgment rate of gyroscopic drift is reduced, labor cost is reduced, and working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of gyroscopes, in particular to a drift resolution analysis method for gyroscope system testing. Background technique [0002] The gyroscope is the core component of the inertial navigation system, and the system test is a more realistic performance reflection of the gyroscope in the system application environment, and is an important basis for determining the availability and classification of the gyroscope. Its precision performance largely determines the precision performance of the inertial navigation system. The gyroscope needs to be tested and inspected by stand-alone and system before installation or delivery. Stand-alone test and system test have their own emphasis, and the combination of the two can make a more comprehensive evaluation of the gyroscope. The inertial navigation system test on the gyroscope reflects the comprehensive performance of the gyroscope on the inertial navigation system, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 覃刚范云鹏姚宇林晓彬石凤仪于丹
Owner TIANJIN NAVIGATION INSTR RES INST
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