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目的 :提高超宽谱(ultra wide-band,UWB)生命探测雷达的探测效率,解决多目标、多方位探测中的目标同时探测和定位问题。方法:采用三通道UWB雷达系统(1个发射天线、3个接收天线)对静止站立的多目标进行信号采集,采用反投影方法等对信号进行处理和目标定位,并对这种二维定位方法进行效能评估。结果:该方法可以对少于等于3个的人体目标实现有效探测,并给出目标的二维位置信息。结论:该技术实现了多目标、多方位的穿墙探测识别和定位,对提高探测效率、提升生命探测雷达的实用化水平有重要意义。
Objective: To improve the detection efficiency of ultra wide-band (UWB) life detection radar and solve the simultaneous target detection and localization in multi-target and multi-directional exploration. Methods: A three-channel UWB radar system (one transmitting antenna and three receiving antennas) was used to acquire the signal of stationary multi-target. The signal was processed and the target was located by back projection method. The two-dimensional positioning method Conduct performance evaluation. Results: This method can effectively detect three or fewer human targets and provide two-dimensional location information of the target. Conclusion: This technique achieves multi-target and multi-directional wall penetration detection and identification, which is of great significance to improve detection efficiency and enhance the practicality of life detection radar.