| 复杂环境下INS辅助GPS跟踪环路研究 |
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| 引用本文： | 赵琳,赵洪斌,闫超.复杂环境下INS辅助GPS跟踪环路研究[J].传感器与微系统,2011,30(10):22-25. |
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| 作者姓名： | 赵琳 赵洪斌 闫超 |
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| 作者单位： | 哈尔滨工程大学自动化学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目(60974104) |
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| 摘 要： | 为实现超紧INS/GPS组合接收机跟踪高动态、微弱GPS信号,分析了超紧组合的基本结构,并根据载波环路噪声与带宽的关系,研究并设计了一种INS辅助GPS接收机载波和码跟踪环路的具体实现方案.整个环路进行r仿真.结果表明:载噪比为45 dB/Hz时,载波和码环带宽可降至2,0.03 Hz；而在满足带宽大于或等于20,0....
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| 关 键 词： | 超紧组合 锁相环 高动态 弱信号处理 |
Study on tracking loops of INS-aided GPS in complex environment |
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| ZHAO Lin,ZHAO Hong-bin,YAN Chao.Study on tracking loops of INS-aided GPS in complex environment[J].Transducer and Microsystem Technology,2011,30(10):22-25. |
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| Authors: | ZHAO Lin ZHAO Hong-bin YAN Chao |
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| Affiliation: | ZHAO Lin,ZHAO Hong-bin,YAN Chao(School of Automation,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | In order to realize ultra-tight INS-GPS integration receiver tracking high dynamic and weak GPS signal,the architecture of the ultra-tight INS-GPS integration system is discussed.According to the relation between noise and bandwidth of carrier wave loop,a specific realization scheme for carrier wave of INS-aided GPS receiver and code tracking loop is studied and designed.The overall loop is simulated.The computer test results validate that the carrier wave and bandwidth of code loops can be down to 2,0.03 H... |
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| Keywords: | ultra-tight integration phase lock loop(PLL) high dynamic weak signal processing |
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