Kabashnikov Vitaly, Kuntsevich Boris
Appl Opt. 2017 Oct 20;56(30):8378-8384. doi: 10.1364/AO.56.008378.
A method for distance determination with the help of range-gated viewing systems is proposed for an arbitrary shape of the illumination pulse. The method is based on finding the maximum of the reflected pulse energy as a function of the delay time. At the equal pulse and gate durations, there is a strict maximum, which turns into a plateau when the pulse is shorter than the gate duration. The delay times corresponding to the strict maximum or the far boundary of the plateau are directly related to the distance to an object. These results are confirmed by the numerical study of the dependence of the detected energy on the delay time for the different pulse shapes. Experimental verification of the proposed method showed accuracy 1-2 m in a measuring range of 15-120 m. The obtained results can be useful in the development of 3D vision systems.
针对任意形状的照明脉冲，提出了一种借助距离选通观察系统进行距离测定的方法。该方法基于将反射脉冲能量的最大值作为延迟时间的函数来求解。在脉冲和选通门持续时间相等时，存在一个严格的最大值，当脉冲短于选通门持续时间时，该最大值会变成一个平台。对应于严格最大值或平台远边界的延迟时间与到物体的距离直接相关。这些结果通过对不同脉冲形状下检测能量与延迟时间关系的数值研究得到了证实。对所提方法的实验验证表明，在15 - 120米的测量范围内，精度为1 - 2米。所得结果对于三维视觉系统的开发可能会有帮助。
