摘要
论述了检相式激光测距的原理,提出电路实现的整体方案,着重介绍了由CDEF(复杂可编程逻辑器件)实现的数字鉴相方法,给出鉴相原理图’由于CDEF具有高速度和高带宽等优点,因此测相精度较高’
The principle for phase laser ranging system is discussed. The whole design of circuit system is put forward. The method of digital phase detecting and implementation are introduced in details. The schematic diagram of phase detecting is given. Higher detecting accuracy is able to be obtained because of the high speed and wide band width of CPLD.
出处
《应用科技》
CAS
2009年第11期60-63,共4页
Applied Science and Technology
关键词
激光测距
数字鉴相
锁相环
CDEF
laser ranging
digital phase detecting
phase-locked loop
CPLD
