摘要
激光测距仪原理简单,集成化和小型化都比较好。本文设计了一种脉冲-相位式激光测距仪,综合利用了脉冲式测距范围大和相位式测距精度高的优点。利用直接数字频率合成(DDS)信号发生技术产生高稳定低漂移的测量信号,通过脉冲计数对距离实现粗测,利用数字信号处理器件(DSP)TMS320C6727B进行数字鉴相实现对距离的精测,保证了测距精度和测距可靠性,测量距离200m时测距精度达到厘米级别。
The laser range finder has a simple principle, good integration and miniaturization. In this paper, the design phase of a pulsed laser rangefinder utilization of the pulse range and phase-type Ranging accuracy. It used Direct Digital Synthesis（DDS）technologies to produce low drift, high stability measurement of signals, used high frequency pulse to realize rough measurement of the distance and uses the DSP（TMS320C6727B）to do the digital phase identification to realize the essence of distance measurement, as a result of this, it improves the precision of distance measurement accuracy and reliability. The range finder in the measurement of distance to reach 200 meters when the measurement accuracy can still achieve centimeter-level.
出处
《电子测量技术》
2009年第5期21-24,共4页
Electronic Measurement Technology
