SYSTEM AND METHOD FOR CORRECTING INTERCHANNEL TIME DELAY MAP FOR SOUND SOURCE DIRECTION DETECTION SENSOR

摘要

A correction system, according to the present invention, comprises: a sound source direction detection sensor comprising at least one microphone; a saving portion for saving a time delay map; a time delay calculation portion for calculating a time delay value between each microphone channel; and a control portion for measuring signals from sound sources which are positioned on left and right sides or on top and bottom sides, calculating the time delay value between each of the microphones, extracting each of a horizontal angle and an azimuth angle when the time delay value reaches a maximum and a minimum, calculating the ratio between the difference of a maximum time delay value and a minimum time delay value of the signal of the sound sources which are measured and the difference of a time delay value that corresponds to the horizontal angle and the azimuth angle that are extracted from time delay map information, which is saved to the saving portion, and correcting the time delay map information that is saved to the saving portion so as to fit a modified robot platform by using the ratio which is calculated.