声程差 meaning in Chinese

acoustic path difference
path difference

The paper introduced the theory of passive acoustic localization and the algorithm of space acoustic localization . by use of combined acoustic path difference , the paper amended the passive acoustic localization formula and improved the accuracy of localization
本文介绍了被动声定位的原理及空间声定位的算法，推导出了被动声定位公式，并利用声程差组合改进了被动声定位公式，提高了定位的精度。