1) helicopter passive acoustic direction
直升机被动声定向
2) acoustic-passive direction estimation
声被动定向
3) acoustic-passive direction estimate
声测被动定向
5) helicopter noise
直升机噪声
1.
Aimed at rapidity and low power consumption required by intelligent mines,based on correlation theory and pattern recognition technology,a new method is given,in which helicopter noise signal of time domain is analyzed directly,that is to estimate fundamental frequency by calculating self-correlation function,then recognize target thinking of the fundamental frequency as characteristic quantity.
针对智能雷弹要求其预警系统对目标快速识别和低功耗工作的特点,根据相关理论和模式识别技术,提出了直接分析所接收的直升机噪声时域信号的方法,即利用自相关函数估计信号基频,以被测信号基频为特征量进行目标识别的方法。
6) Helicopter sound field
直升机声场
补充资料：蘑菇定向切片机
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条