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采用基于CUDA(compute unified device architecture,统一计算设备架构)的GPU(graphic pro-cessing unit,图形处理器)与CPU协作处理方法,实现了基于时差最小测量误差的任意站定位算法的实时处理。本方法的处理速度相较于单CPU平台可以提高一至两个数量级,相较于同等处理速度的多CPU平台则体现了开发周期短、费用低、工作量小和可靠性高等众多优势。 相似文献
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介绍一种基于PC的PPI显示系统的设计与实现。为满足雷达回波实时显示的要求,研究了距离-方位极坐标与光栅显示直角坐标的快速转换算法;为实现传统PPI显示器荧光点余辉效应的模拟,提出了基于回波数据上报周期递减显示像素色深的方法;为满足叠加数字地图和航迹等信息的要求,提出了基于图层的显示数据管理算法。文中提出的设计和算法较好地满足了上述功能和性能要求,研究成果应用于某目标探测系统取得了较好的效果。 相似文献
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PLLA/CA mixtures of different compositions were successfully electrospun to obtain composite nanofibrous membranes.The microstructures of the membrances changed from homogeneous to heterogeneous with the addition of CA, which was observed by FE-ESEM.The PLLA/CA fabric membranes were characterized by mechanical testing,DSC and contact angle measurements.The tensile stress of the composite fibrous membranes increased obviously with the increase of CA content.DSC results indicated that the CA component was the main factor for the changes of enthalpies in the composite fibers.Contact angle measurements showed the hydrophilicity of the electrospun nanofiber membranes was improved with the addition of CA. 相似文献
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