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- 2017
共享内存环境下的并行质量引导相位解缠
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Abstract:
提出了一种共享内存环境下的并行质量引导相位解缠算法。首先，分析了相邻相位点质量值计算的内在关系，采用行、列数组保存中间结果消除梯度的重复计算；然后，按行进行计算任务分配，简化相邻窗口内的行、列均值计算；最后，通过OpenMP指令实现计算任务分配，完成质量图的并行计算。对于质量引导过程内在的并行性进行了分析，但受限于重复的线程启动和退出时间开销，难以体现速度优势。对合成孔径雷达干涉（synthetic aperture radar interferometry，InSAR）和干涉合成孔径声纳（interferometric synthetic aperture sonar，INSAS）干涉相位图进行解缠实验，结果表明，所提方法提高了相位解缠效率，为在实时条件下进一步提高相位解缠精度奠定了基础
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