Location Algorithm and Precision Analysis Based on Acoustic Detection
Yao Xin-tao · Journal of Gun Launch & Control · 2009
Passive acoustic detection technique,which has advantages of passive reception,strong concealment and far detecting distance,is an important method used in military reconnaissance,and an effective way of guarding against low altitude raid. Aimed at the problem of low elevation angle precision under the condition of plane array,a solid array of acoustic sensors was brought forward,and the location algorithm of the array was deduced and orientation error was analyzed.The results showed that detection precision of low elevation angle was improved by means of this algorithm,and the algorithm has no relation to target azimuth angle. The algorithm overcomes its own disadvantage of plane array and has more practicable value in the engineering field of target location at low attitude and extreme low altitude.