扫描型成像激光雷达仿真加速算法
发布时间：2018-08-21 07:07
【摘要】：扫描型成像激光雷达的建模和仿真是激光雷达信号处理和系统设计领域的一项重要研究内容。提出了一种快速成像仿真方法,在不影响仿真精度的同时提高了仿真效率。通过推导像元运动轨迹以及模型面元在像平面上投影的运动轨迹,得到判断像元和面元相交关系的不等式,利用时间剖分和近似处理,求解出像元和面元可能的相交关系,再对可能的相交关系判断是否确实相交,达到降低求交次数的目的。基于该方法,对6种目标进行仿真,算法仿真结果与传统方法得到的结果相同,求交次数与运算时间降低至传统方法的1%。
[Abstract]:The modeling and simulation of scanning imaging lidar is an important research content in the field of signal processing and system design. A fast imaging simulation method is proposed, which improves the simulation efficiency without affecting the simulation accuracy. By deducing the trajectory of the pixel motion and the trajectory of the model surface projected on the image plane, the inequality for judging the intersecting relation between the pixel and the plane is obtained, and the possible intersecting relation between the pixel and the plane is solved by using the time division and approximate processing. Then the possible intersecting relationship is judged whether it is really intersecting, and the purpose of reducing the number of intersection is achieved. Based on this method, six kinds of targets are simulated. The simulation results of the algorithm are the same as those obtained by the traditional method, and the number of intersection and the operation time are reduced to 1 / 10 of the traditional method.
【作者单位】： 国防科技大学ATR实验室;
【基金】：国家自然科学基金(61101185,61302145)
【分类号】：TN958.98
本文编号：2194924
[Abstract]:The modeling and simulation of scanning imaging lidar is an important research content in the field of signal processing and system design. A fast imaging simulation method is proposed, which improves the simulation efficiency without affecting the simulation accuracy. By deducing the trajectory of the pixel motion and the trajectory of the model surface projected on the image plane, the inequality for judging the intersecting relation between the pixel and the plane is obtained, and the possible intersecting relation between the pixel and the plane is solved by using the time division and approximate processing. Then the possible intersecting relationship is judged whether it is really intersecting, and the purpose of reducing the number of intersection is achieved. Based on this method, six kinds of targets are simulated. The simulation results of the algorithm are the same as those obtained by the traditional method, and the number of intersection and the operation time are reduced to 1 / 10 of the traditional method.
【作者单位】： 国防科技大学ATR实验室;
【基金】：国家自然科学基金(61101185,61302145)
【分类号】：TN958.98
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