CAJ | 학술논문

被动声定位技术已成为战场目标定位的重要手段，人-机一体化头盔式“电子哨兵”系统能够解决阵列信号处理低信噪比性能下降及人耳听觉距离有限的缺点。作为系统研发的理论基础，从声传播方程出发，研究了考虑阵列增益条件下的最大听觉距离。基于声传播方程，分析了声传播损失的计算方法，探讨了自由场情况下和存在阵列支撑物情况下阵列常规增益和阵列超增益的算法，最后通过算例对阵列处理提高人耳听音距离进行了说明，为人-机一体化“电子哨兵”系统研发提供了理论依据。
피동성정위기술이성위전장목표정위적중요수단，인-궤일체화두회식“전자초병”계통능구해결진렬신호처리저신조비성능하강급인이은각거리유한적결점。작위계통연발적이론기출，종성전파방정출발，연구료고필진렬증익조건하적최대은각거리。기우성전파방정，분석료성전파손실적계산방법，탐토료자유장정황하화존재진렬지탱물정황하진렬상규증익화진렬초증익적산법，최후통과산례대진렬처리제고인이은음거리진행료설명，위인-궤일체화“전자초병”계통연발제공료이론의거。
Passive acoustic localization technology has become an important method for battle field target localization. The new type of head-mounted electronic sentinel system based on human-machine combination and passive acoustic localization can overcome the performance fall in low SNR of array signal processing and the limited auditory distance. As a theoretical basis for the development of the proposed system,the largest auditory distance is studied starting from acoustic propagation equation under the condition of considering the array gain. The algorithm of calculating acoustic propagation lose is analyzed based on acoustic propagation equation. The array gain and array supergain using array in free field and array with baffles are investigated. The improvement of auditory distance using array signal processing technology is illustrated by numerical examples,which provides a theoretical basis for the development of electronic sentinel system based on human-machine combination.