红外单目标场景仿真中的并行绘制结构研究

The Research of Parallel Render Structure in Single IR Target Scene Simulation System

针对基于并行多DSP的实时红外单目标动态场景仿真系统的应用背景,提出了一种改进的并行绘制结构。针对该并行绘制结构对存储空间和传输带宽要求高的不足,提出了一种降低存储空间和传输带宽的方法。该方法利用实际的红外单目标动态场景仿真系统中,红外目标不会完全覆盖整个成像像元平面的特点;在进行光栅化操作之前,估算出目标在成像像元平面的最大成像区域,并以该区域作为实际成像区域,缩小了成像平面,从而降低处理器所需的存储空间,和传输图像所需的传输带宽。最后给出了实验结果。

According to background of real-time single IR target scene simulation system based on multi-DSP, an improved parallel render structure is putted forward. For this structure needs large memory which is limited in embedded DSP and high transfer bandwidth, a method which can reduce the memory and bandwidth in parallel raster is also putted forward. For the IR target in real simulation system never fill the entire imaging plane, this method estimates the maximal projection region which is the real imaging region. For the real imaging region is small than the entire imaging plane, the memory and transfer bandwidth needed is reduced. The experiment result is provided at the end.