| 1. | The scheme is designed based on these researches . for traditional laser rang finders , most of them use heterodyne method as the phase shift measurement . the advantage of heterodyne method is the high measurement accuracy , but its disadvantage is the low measurement velocity
传统的相位激光测距大部分都采用差频数字测相,差频测相的优点在于由于频率的降低,这样必然意味着测距精度的提高,但其缺点是测距速率低。 |
