Unmanned aerial vehicle sensor vibration noise suppression method

A technology of noise suppression and vibration noise, applied in the field of unmanned aerial vehicle systems, can solve the problems of vibration and noise interference of the aerodynamic and power systems of the carrier aircraft, and achieve the effect of improving flight quality and strong processing capacity

Pending Publication Date: 2020-11-06
长沙神弓信息科技有限公司
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: Aiming at the problem that the MEMS gyroscope sensor of the UAV is easily disturbed by the vibration noise of the aircraft aerodynamic and power system in the me

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  • Unmanned aerial vehicle sensor vibration noise suppression method

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[0036] In order to make the objects, technical solutions, and advantages of the present invention more clearly, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiment of the present invention. It is an embodiment of the invention, not all of the embodiments. Based on the embodiments in the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained in the preparation of creative labor.

[0037]This embodiment relates to a vibration noise suppression method of a small drone sensor based on a time convolutionary network. For small drones MEMS gyroscope sensors, it is susceptible to the problem of air activity and power system vibration noise in angular velocity measurement. Introducing a time convolutional neural network, and a small unmanned unmanned unmanned network based on time convolutionary network (TCN) is proposed. Method of Sig...

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Abstract

The invention discloses a time convolution network-based vibration noise suppression method for a small unmanned aerial vehicle sensor. The method comprises the following steps that: an external high-precision measurement system is utilized to obtain high-precision measurement values of an attitude angle and an angular speed during flight of a unmanned aerial vehicle, and at the same time, a gyroscope angular speed measurement value of an onboard MEMS inertial measurement unit of a flight control system under the influence of internal noise of the unmanned aerial vehicle is recorded, and a training data set and a test set after data are constructed after data cleaning and time synchronization processing are performed; a multi-layer time convolution network is built for training and testing, a trained model is called on a small embedded system for test flight verification. Experimental data shows that the time convolution network can effectively retain original signal characteristics and greatly reduce the influence of noise on a gyroscope measurement result.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle systems, in particular to a method for suppressing vibration and noise of an unmanned aerial vehicle sensor. Background technique [0002] With the rapid development of MEMS sensor (micro-electromechanical system) technology in recent years, MEMS inertial measurement units are widely used in small unmanned aerial vehicles, unmanned vehicles and other unmanned systems due to their small size, rapid response and high sampling rate. [0003] With the development of the miniaturization design of the UAV system, its structure is becoming more and more compact. The high-frequency vibration generated by the power components such as the rotor and the motor of the aircraft will affect the gyroscope and the MEMS inertial measurement unit in the small-sized fuselage. The accelerometer produces a large noise effect, which affects its attitude accuracy. [0004] Although methods such as low-pa...

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Application Information

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IPC IPC(8): G10K11/178G10L21/0208G10L25/30B64C27/08
CPCG10K11/1785G10L21/0208G10L25/30B64C27/08
Inventor 周翔双丰韩冬成陶昶华赖家立何洪涛晏正超鲁纯
Owner 长沙神弓信息科技有限公司
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