| CAPS信号模拟器研究与实现 |
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| 引用本文： | 朱海龙,纪元法,施浒立.CAPS信号模拟器研究与实现[J].测绘科学,2011,36(1):10-12,108. |
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| 作者姓名： | 朱海龙 纪元法 施浒立 |
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| 作者单位： | 中国科学院国家天文台;中国科学院研究生院;桂林电子科技大学应用科技学院; |
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| 基金项目： | 国家重点基础研究发展计划资助项目(编号:2007CB815500); 国家自然科学基金资助项目(60802018) |
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| 摘 要： | CAPS信号模拟器,是模拟CAPS接收机在各种运动环境中接收到的CAPS信号,用于实验室条件下测试接收机在各种环境下的性能。本文通过对CAPS系统数学模型的研究,结合CAPS系统特有的虚拟星上原子钟概念,分析了模拟器实现的核心技术——信号延迟表达式,及其基于FPGA实现的关键技术,并给出了模拟器的软硬件实现方法。最后的测试结果表明模拟器可以按设计要求输出精确的仿真信号,可应用于工程实践。
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| 关 键 词： | CAPS 信号模拟器 虚拟星上原子钟 现场可编程逻辑门阵列 |
Research and realization for CAPS signal simulator |
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| ZHU Hai-long,JI Yuan-fa,SHI Hu-li.Research and realization for CAPS signal simulator[J].Science of Surveying and Mapping,2011,36(1):10-12,108. |
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| Authors: | ZHU Hai-long JI Yuan-fa SHI Hu-li |
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| Institution: | ①②(①National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China;②Graduate University of Chinese Academy of Sciences,Beijing 100049,China;③Applied Science and Technology College,Guilin University of Electronic Technology,Guilin 541004,China) |
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| Abstract: | The CAPS signal simulator simulates the CAPS signal which was received by CAPS receiver in each kind of movement environment;it is used to test the performance of receiver in a variety of environments under the laboratory condition.Through the CAPS system mathematical model's research,this paper unified on the CAPS system unique concept of Satellite virtual atomic clock,analyzed the core technologies of the realization of simulator-signal delay expression and key technologies which are realized based on FPG... |
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| Keywords: | CAPS signal simulator satellite virtual atomic clock FPGA |
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