摘要
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.仿真研究表明,该方法具有一定的实用性.
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. The result of the emulation verifies practicability of this method.
出处
《实验技术与管理》
CAS
2006年第4期32-35,共4页
Experimental Technology and Management
关键词
直升机噪声
目标识别
短时自相关
仿真
helicopter noise
target recognition
short time self- correlation
emulation
