Acoustic Sensor Array Deployment Analysis and Accuracy Correction Method for Aerial Blast Points

Aiming at the coordinate test of aerial bombing point, especially under the low visibility condition, the target capture rate is low and the measurement accuracy is not high when the micro-charge fuse is in action, the acoustic localization technology is adopted to locate the target. A “star-shaped array” sensor array deployment method is designed, and the impact of different array deployment methods on the test accuracy is analyzed in comparison with other array deployment methods. According to the source of systematic testing error, an accuracy correction method is proposed, especially for the influence of air flow in the high and low directions and the temperature change caused by elevation on the sound speed. The method is applied for experimental testing, the results show that the proposed method has meter-level testing accuracy for low-altitude targets.