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Mobile phone gyroscope zero offset dynamic compensation method based on time sequence analysis

A technology of time series analysis and dynamic compensation, which is applied in the field of communication and can solve problems such as inability to compensate the gyroscope of the mobile phone

Active Publication Date: 2018-08-31
XIDIAN UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to propose a mobile phone gyroscope based on time series analysis in order to solve the shortcomings of the above-mentioned prior art that cannot effectively compensate the mobile phone gyroscope that has been working for a long time, and cannot compensate the mobile phone gyroscope in the motion state. Bias Dynamic Compensation Method

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  • Mobile phone gyroscope zero offset dynamic compensation method based on time sequence analysis
  • Mobile phone gyroscope zero offset dynamic compensation method based on time sequence analysis
  • Mobile phone gyroscope zero offset dynamic compensation method based on time sequence analysis

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Embodiment Construction

[0025] Attached below figure 1 The present invention is further described.

[0026] Step 1, construct the stationarity test sequence.

[0027] Collect 200 pieces of mobile phone gyroscope output data in sequence, and construct a stationarity test sequence according to the order of data collection.

[0028] Step 2, calculate the degree of freedom of the inverse total ordinal number of the stationarity test sequence.

[0029] The stationarity test sequence is divided into 10 segments, the mean value of each segment sub-sequence is calculated, and the mean value of the 10 segment sub-sequences is composed of a mean value sequence.

[0030] Select any element in the mean value sequence, and the elements that are greater than this element and appear before this element form a reverse order set.

[0031] Use the total number of elements in the reversed set as the reversed number of the selected element.

[0032] Accumulate the inverse ordinal numbers of each element of the mean ...

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Abstract

The invention discloses a mobile phone gyroscope zero offset dynamic compensation method based on time sequence analysis. The method comprises the implementation steps: (1) constructing a stationaritytest sequence; (2) calculating the degree of freedom of the inverse total ordinal number of the stationarity test sequence; (3) determining the stationarity of the stationarity test sequence; (4) calculating a mobile phone gyroscope zero offset compensation factor according to the stationarity of the stationarity test sequence; and (5) compensating mobile phone gyroscope output data by the zero offset compensation factor. The stationarity of the output data of a mobile phone gyroscope is tested by the time sequence analysis method, the zero offset compensation factor when the data are stationary is set as the mean value of the stationarity test sequence, the dynamic compensation for the zero offset error of the mobile phone gyroscope is achieved, and the zero offset error of the mobile phone gyroscope which works for a long time and is in a motion state can be compensated effectively.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a method for dynamically compensating zero bias of a mobile phone gyroscope based on time series analysis in the technical field of target positioning. The invention can be used to dynamically compensate the zero offset error item output by the gyroscope of the mobile phone, and improve the output precision of the gyroscope of the mobile phone. Background technique [0002] Inertial navigation technology is a technology that uses mobile phone gyroscopes and other inertial devices to measure the relevant data of the carrier to obtain the instantaneous velocity and position data of the carrier. It is widely used in emerging technology fields (for example, virtual reality technology) and aspects such as security, transportation, and emergency assistance that are closely related to human life. At present, there are mature technologies to use the output angular velocity o...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 杜建超孙兆凯惠海芳肖洒肖嵩周一廷刘渊峰
Owner XIDIAN UNIV