基于虚拟仪器的混沌激光雷达距离速度的测量
首发时间:2009-03-27
摘要:研究了利用虚拟仪器技术实现用类噪声混沌激光的相关特性实现对目标距离的测定,并进而利用时间间隔法得出动态目标的实时速度。针对系统对采集速率较快的要求,利用示波器具有采集频带宽、灵敏度高、抗干扰性强的优点,通过带有GPIB接口的示波器实现数据的采集。实验中,以镜子为假象待测目标物,进行了距离和速度测量,利用Labview程序实现信号的采集、处理和显示。实验表明:混沌激光雷达借助虚拟仪器能够对目标物实现快速实时的距离速度联合测量
关键词: 混沌测距;混沌测速;虚拟仪器; 数据处理
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Measurement of Chaotic Lidar For Range and Velocity Based On Virtual Instrument
Abstract:Based on virtual instrument, the ranging and real-time velocity measurement used to time-interval measurement to target is studied, with the correlation characteristics of broad bandwidth and noise-like chaotic laser. With the requirement of ranging system to rapid data acquisition rate, the merits of oscilloscope on acquisition bandwidth, sensitivity and anti-interference are used. Data acquisition is realized through the oscilloscope with GPIB interface. The range and velocity of the target is measured in experiment. And data acquisition, processing and display are realized by the software of Labview. The results indicated that the chaotic lidar can accomplishment the measurement to the range and velocity for a target rapidly by virtual instrument
Keywords: chaotic ranging;chaotic velocity measurement;virtual instrument;data processing
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