掃描型成像激光雷達仿真加速算法
發(fā)布時間:2018-08-21 07:07
【摘要】:掃描型成像激光雷達的建模和仿真是激光雷達信號處理和系統(tǒng)設計領域的一項重要研究內容。提出了一種快速成像仿真方法,在不影響仿真精度的同時提高了仿真效率。通過推導像元運動軌跡以及模型面元在像平面上投影的運動軌跡,得到判斷像元和面元相交關系的不等式,利用時間剖分和近似處理,求解出像元和面元可能的相交關系,再對可能的相交關系判斷是否確實相交,達到降低求交次數的目的;谠摲椒,對6種目標進行仿真,算法仿真結果與傳統(tǒng)方法得到的結果相同,求交次數與運算時間降低至傳統(tǒng)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.
【作者單位】: 國防科技大學ATR實驗室;
【基金】:國家自然科學基金(61101185,61302145)
【分類號】:TN958.98
本文編號: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.
【作者單位】: 國防科技大學ATR實驗室;
【基金】:國家自然科學基金(61101185,61302145)
【分類號】:TN958.98
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