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Alternative TitleStudy of Frequency-Locked Loops for Tracking Spread Spectrum Signals
马路; 石立国; 王竹刚
Source Publication航天控制
Keyword扩频信号 二阶锁频环 四象限反正切鉴频器 最优带宽
Other AbstractA wide frequency tracking range is required for receivers to accurately acquire spread spectrum signals. The second order frequency-locked loops (FLL) are generally used in spread spectrum tracking loops because of zero frequency tracking error for Doppler rate signals. The noise performance and frequency pull-in range of a second order FLL with four quadrant arctangent discriminator are discussed and deduced in this paper. And the optimum bandwidth of the tracking loop is calculated and simulated by MATLAB. The derivation and results are valuable for loop design and optimization.
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Document Type期刊论文
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GB/T 7714
马路,石立国,王竹刚. 扩频信号跟踪环路中的锁频环研究[J]. 航天控制,2014,32(4):54-61.
APA 马路,石立国,&王竹刚.(2014).扩频信号跟踪环路中的锁频环研究.航天控制,32(4),54-61.
MLA 马路,et al."扩频信号跟踪环路中的锁频环研究".航天控制 32.4(2014):54-61.
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