ACOUSTIC HTS TREATING METHOD USING FREQUENCY MORE THAN AUDIO FREQUENCY RANGE

摘要

The present invention provides a method for processing an acoustic helmet tracking system (HTS) by using a high frequency which is higher than an audio frequency for generating a small system load without an interference problem for other devices. The purpose of the present invention is to track a helmet position by tracking a sound signal source position with a plurality of high frequency acoustic signal receivers and a plurality of high frequency acoustic signal transmitters. The method for processing the acoustic HTS by using the high frequency which is higher than the audio frequency comprises a step (S100) for transmitting a high frequency signal generated from each sensor to a receiver of a helmet; a step (S200) for enabling the receiver of the helmet to obtain the high frequency signal; a step (S300) for converting the frequency of the high frequency signal into a frequency domain; a step (S400) for calculating a time delay between the sensor signals (TODA); a step (S500) for calculating the coordinates of each sensors; and a step (S600) for finding the helmet position of a pilot. [Reference numerals] (AA) Mutual spectrum;(BB) Multiply phase difference and frequency rate;(CC) Use hyperbolic intersecting point;(S100) Transmit a high frequency signal;(S200) Obtain the high frequency signal;(S300) Convert the frequency into a frequency domain;(S400) Calculate TDOA between the sensor signals;(S500) Calculate the coordinates of each sensors;(S600) Find the helmet position