摘要
由于现存系统存在误判点较多、信号分割点方差较大的问题,因此,提出一种新的旋转翼无人机低功率激光探测系统,并对其进行深入研究。系统的硬件构成为:音频采集模块、激光探测模块、电源模块、微处理器模块、光学组件模块。其中音频采集模块主要由麦克风阵列、音频同步编解码电路以及信号调理电路构成;激光探测模块由距离激光传感器、二维激光测距仪等构成;电源模块负责提供硬件模块电路的电压;微处理器模块选择的微处理器为ARM微控制器;光学组件模块主要通过多光谱成像来采集目标红外图像。系统的软件配置为地面站模块。地面站模块的构成单元包括控制单元、可视化单元、网络传输单元等。通过硬件与软件相结合实现了旋转翼无人机低功率激光探测的功能。进行了四种系统的对比实验后,证明设计系统的误判点数量与信号分割点方差均低于现存系统,验证了系统设计方案的可行性。
Due to the problems of many misjudgment points and large variance of signal split points in the existing system, a new low-power laser detection system for rotary-wing UAVs is proposed and studied. The hardware structure of the system is: audio acquisition module, laser detection module, power supply module, microprocessor module, optical component module. The audio acquisition module is mainly composed of a microphone array, an audio synchronization codec circuit and a signal conditioning circuit;the laser detection module is composed of a distance laser sensor, a two-dimensional laser rangefinder, etc.;the power module is responsible for providing the voltage of the hardware module circuit;a microprocessor The microprocessor selected for the module is an ARM microcontroller;the optical component module mainly uses multi-spectral imaging to collect target infrared images. The software configuration of the system is a ground station module. The constituent units of the ground station module include a control unit, a visualization unit, and a network transmission unit. Through the combination of hardware and software, the low-power laser detection function of the rotary-wing UAV is realized. After conducting comparative experiments of the four systems, it is proved that the number of misjudgment points and the variance of the signal split point of the design system are lower than the existing system, which verifies the feasibility of the system design scheme.
作者
李一帆
潘松
LI Yifan;PAN Song(Nanjing University Of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《激光杂志》
CAS
北大核心
2022年第1期144-148,共5页
Laser Journal
基金
国家青年科学基金(No.51505195)。
