基于单光子激光雷达信号的快速恒虚警检测研究

Research on Fast Constant False Alarm Detection Based on Single Photon Lidar Signal

当前在单光子激光雷达的目标检测领域,存在检测速度较慢的问题。为了提升检测速度,提出了一种快速恒虚警检测方法(F-CFAR)。首先,按照雷达回波信号的特点重新设计了单光子激光雷达信号的数据格式,通过数据处理使数据量降低,最后对处理后的信号数据进行恒虚警检测。这种方法能在不过多地降低目标信号检测性能的情况下提升检测速度,能较快地对目标回波信号进行检测。仿真显示和实验表明,与传统的信号检测方法相比,在相同数据量的情况下,所提出的方法能将目标的检测速度至少提高1个数量级,同时检测性能也能相对保持稳定。

In the domain of single-photon laser radar target detection,the current detection speed is relatively sluggish.In order to address this limitation,a Fast Constant False-Alarm Rate(F-CFAR)detection method is proposed in this paper.Firstly,the data format of the single photon lidar signal is redesigned according to the characteristics of the radar echo signal.Then reduced the noise intensity through data processing.Finally,the constant false alarm detection is carried out on the processed signal data.This method can improve the detection speed without excessively reducing the detection performance.Simulation and experiment show that,the proposed method achieves at least an order of magnitude improvement in target detection speed compared to traditional signal detection methods,while maintaining relatively stable detection performance.