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FLL辅助PLL载波跟踪环路误差分析
Alternative TitleAnalysis on FLL-Assisted-PLL Carrier Tracking Loop Error
马路; 石立国; 王竹刚
Department空间技术部
Source Publication测控技术
2014
Volume33Issue:9Pages:131
ISSN1000-8829
Language中文
Keyword锁频环 锁相环 环路滤波器 热噪声
Abstract在GPS接收机中,为了跟踪多普勒变化率,需要采用三阶锁相环;为了增大跟踪的动态范围需要锁频环进行辅助跟踪。为了分析二阶锁频环辅助下的三阶锁相环的跟踪误差,建立了环路的数学模型,重点分析和推导了环路的热噪声误差。通过Simulink仿真验证了误差公式的正确性,为以后的环路优化提供了参考。
Other AbstractIn order to track Doppler rate signal, a third-order PLL is exploited in a GPS receiver. Meanwhile, a second order FLL is always used to assist the PLL for meeting a high dynamic signal. The mathematical model of the tracking loop is built to analyze the tracking errors caused by thermal noise. Simulation results validate the correctness of the error formula which is useful for optimizing the digital loop.
Indexed ByCSCD
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4420
Collection空间技术部
Recommended Citation
GB/T 7714
马路,石立国,王竹刚. FLL辅助PLL载波跟踪环路误差分析[J]. 测控技术,2014,33(9):131.
APA 马路,石立国,&王竹刚.(2014).FLL辅助PLL载波跟踪环路误差分析.测控技术,33(9),131.
MLA 马路,et al."FLL辅助PLL载波跟踪环路误差分析".测控技术 33.9(2014):131.
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