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A performance evaluation method of mems gyroscope based on information entropy

An evaluation method and information entropy technology, applied in the field of gyro performance evaluation, can solve the problems of low gyro randomness and high gyro randomness, and achieve the effect of improving gyro performance

Active Publication Date: 2020-06-02
HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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Problems solved by technology

The random error of MEMS gyroscope is random, some gyroscopes have high randomness, and some gyroscopes have low randomness

Method used

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  • A performance evaluation method of mems gyroscope based on information entropy
  • A performance evaluation method of mems gyroscope based on information entropy
  • A performance evaluation method of mems gyroscope based on information entropy

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other. The present invention will be further described in detail below in combination with specific embodiments.

[0038] Such as figure 1 Shown is a flow chart of the MEMS gyroscope performance evaluation method based on information entropy in the embodiment of the present invention. The MEMS gyroscope performance evaluation method based on information entropy in this embodiment will be further descri...

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Abstract

The invention discloses an information entropy-based micro-electro-mechanical system (MEMS) gyro performance evaluation method. The method comprises the following steps: collecting gyro output data, and constructing a gyro output data set; preprocessing data in the gyro output data set to remove noise data; calculating a mean value of the gyro output data, acquiring gyro random error, and constructing a gyro random error data set; carrying out data classification on the gyro random error data set, obtaining the proportion of each type of data in the gyro random data set according to the classification results, and using the obtained proportions as recessive feature vectors of the gyro random error; calculating information entropy of the gyro random error based on the recessive feature vectors of the gyro random error, and evaluating the performance of the gyro according to the information entropy. By adopting the technical scheme, the method aims at the problem of MEMS gyro accuracy performance evaluation in the prior art, adopts the information entropy to evaluate the random error of the MEMS gyro, and can be used for performing quantitative description on the uncertainty of the random error of different gyros.

Description

technical field [0001] The invention belongs to the field of gyroscope performance evaluation, and in particular relates to an information entropy-based MEMS gyroscope performance evaluation method. Background technique [0002] In recent years, with the development of microelectronic processing technology, the accuracy of MEMS inertial sensors, especially gyroscopes, has been greatly improved. With its advantages in size, cost, power consumption and impact resistance, MEMS gyroscopes are used to The inertial navigation technology has a wide range of application scenarios, such as drone control navigation technology, robot motion control, wearable devices with motion recognition, etc. The inertial system based on MEMS gyro has become an important research hotspot in the field of inertial technology. [0003] However, although the transient performance of the low-cost MEMS gyroscope is better, the error drift will gradually accumulate over time, which has a great impact on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00G06F30/20
CPCG01C25/005G06F30/20
Inventor 左庆张书文曹海波雷雯雯刘亦男李宁陈希
Owner HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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