基于地震动信号的目标识别

Target Recognition Based on the Seismic Signal

地面目标地震动信号的特性分析是进行地面目标识别的关键,针对人员、车辆地面目标运动时产生的地震动信号,利用JLD—3传感器和DSP设计了一种信号采集与处理系统,并进行多次外场测试。得到的信号时域、频域特征向量可作为目标分类的依据。试验结果表明,该系统结构简单、可靠性高,能有效识别由人员与车辆运动引起的地震动信号。

Characteristic analysis of the ground target vibration signal is the key to the classification of the ground object. According to the seismic signal produced when the ground targets such as personnel, vehicle move, use JLD--3 sensor and DSP to design a signal acquisition and processing system, and test in the outside field some times. The time domain of signal and frequency domain feature vector get can be providen basis for the target classi- fication. The test results show that, the system has the advantages of simple structure, high reliability, and can ef- fectively identify the vibration signal caused by personnel and vehicle＇s motion.