On Issues of Acoustic Passive Location Algorithm

Several microphone arrays, such as planar four-element array, symmetric three-dimensional square array, planar five-element cross array are common single arrays, which to be used in passive acoustic location with a relatively high frequency. In different articles, an array may be placed in a different way, for example, turned the array at an angle along the z-axis (e.g.90°). The relationship between the basic array and rotating array is one research on this paper. Some articles proposed to increase the number of sensors in the single array can improve detection accuracy, its essence is to increase the delay information that can reduce the location error of the array. Inspired by this, the other research is the impact of utilization of the delay information on the location accuracy of single array, which has a certain number of sensors.