| 基于 GPU 的 GNSS 信号跟踪设计与实现 |
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| 引用本文： | 张尧,唐小妹,陈华明,孙广富.基于 GPU 的 GNSS 信号跟踪设计与实现[J].全球定位系统,2014(5):59-63. |
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| 作者姓名： | 张尧 唐小妹 陈华明 孙广富 |
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| 作者单位： | 国防科技大学电子科学与工程学院卫星导航定位技术工程研究中心,湖南长沙,410073 |
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| 摘 要： | 软件接收机在数据后处理、算法设计与分析等方面发挥着重要的作用。由于传统的软件接收机均是由CPU 处理器实现，处理效率低下。图像处理单元是高度并行化的处理器，将导航信号处理中并行程度高且对时间要求最为严格的跟踪环节与GPU 的并行处理结构有机结合，能大大提升程序的效率。本文解决了采用GPU实现信号跟踪的关键技术，给出了相关的设计方案，并实现。试验结果表明：采用GPU 实现信号的跟踪，其效率提升了112.5倍。
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| 关 键 词： | 跟踪 并行运算 |
Design and Implementation of GNSS Signal Tracking Based on GPU |
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| ZHANG Yao,TANG Xiaomei,CHEN Huaming,SUN Guangfu.Design and Implementation of GNSS Signal Tracking Based on GPU[J].Gnss World of China,2014(5):59-63. |
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| Authors: | ZHANG Yao TANG Xiaomei CHEN Huaming SUN Guangfu |
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| Institution: | (Satellite Navigation and Positioning and Positioning Technology Engineering Research Center, Electronic Science and Engineering School, National University of Defense Technology, Changsha Hunan 410073, China) |
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| Abstract: | Software receiver plays an important role in data post-processing and design of new algorithm .While the efficiency is very low because of using of CPU processor .GPU （Graphic Processing Unit）is a highly parallel processor ,combing the tracking which is high-ly parallel and strict with processing time with GPU organically can improve the efficiency largely .This paper focus on the most important questions to realize tracking with GPU ,give related methods and realize it finally . Experiment result show s the tracking efficiency is 112.5 times than the traditional one . |
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| Keywords: | T racking GPU parallel operation GNSS |
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