Method and system for directional and constant speed of infrasound source

Abstract

The invention provides a method and a system for infrasonic source orientation and speed control. The method comprises a step 101) of using a statistic analysis method, solving a effective delay range through a normal distribution model, that is, getting rid of all outliers in all delay values according to a mean value of a delay sum, so as to select an effective delay value; and a step 102) of based on the effective delay value, performing orientation and speed control processes on a infrasonic source by using a delay algorithm, to obtain orientation and speed control processing results of a to-be-tested infrasonic source by each sub-monitoring network. The method also comprises a step 103) of eliminating interference infrasonic sources based on the orientation processing results obtained by the sub-monitoring networks through a statistic comprehensive method, so as to complete optimized orientation on the to-be-tested target infrasonic source. The method is simple and reliable, and does not have harsh requirements on infrasonic monitoring formation and monitoring time, and meanwhile self noise of sensors and digital instruments can be eliminated, and interference generated by other infrasonic sources around the sub-networks can be eliminated.

Description

technical field [0001] The invention relates to the field of acoustic measurement, and in particular, the invention relates to a method and system for directional velocity determination of an infrasound source. Background technique [0002] The method of determining the infrasound source by using the infrasound sensor network is to receive and collect the infrasound information by laying out the infrasound sensor network, and use the time delay between the sensors in the network to calculate the direction of the source by using the method of time delay calculation. However, in the traditional fixed source method, the self-noise of the infrasound sensor measuring instrument and the digital network transmission acquisition instrument will cause deviations in the calculated time delay. The generated infrasound will cause great random interference to the target orientation; therefore, in the actual measurement, the above reasons will greatly interfere with the orientation and co...

AI Technical Summary

Problems solved by technology

However, in the traditional fixed-source method, the self-noise of infrasound sensor measuring instruments and digital network transmission and acquisition instruments will produce deviations in the calculated time delay; The generated infrasound will cause great random interference to the target orientation; therefore, in the actual measurement, the above reasons will cause great interference to the calculation results of the orientation and constant speed of the infrasound monitoring network, and sometimes the real target sub-sound cannot be found. Sound source

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