A NOVEL DIGITAL PHASE-TRACKING LOOP ELIMINATING HANGUP EFFECT

Huang Jingyu; Chen Yaqin; Fan Yanhu; Feng Zhenghe

Volume 23 Issue 12

Dec. 2001

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Article Navigation > Journal of Electronics & Information Technology > 2001 > 23(12): 1372-1376

Fan ShiWei, Zhang Tao, Zhou BaiZhao. The Trajectory Estimation in Boost-Phase Using Pseudolinear Estimator[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1503-1506.

Citation:

Huang Jingyu, Chen Yaqin, Fan Yanhu, Feng Zhenghe. A NOVEL DIGITAL PHASE-TRACKING LOOP ELIMINATING HANGUP EFFECT[J]. Journal of Electronics & Information Technology, 2001, 23(12): 1372-1376.

Fan ShiWei, Zhang Tao, Zhou BaiZhao. The Trajectory Estimation in Boost-Phase Using Pseudolinear Estimator[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1503-1506.

Citation:

Huang Jingyu, Chen Yaqin, Fan Yanhu, Feng Zhenghe. A NOVEL DIGITAL PHASE-TRACKING LOOP ELIMINATING HANGUP EFFECT[J]. Journal of Electronics & Information Technology, 2001, 23(12): 1372-1376.

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A NOVEL DIGITAL PHASE-TRACKING LOOP ELIMINATING HANGUP EFFECT

Received Date: 2000-06-07
Rev Recd Date: 2000-12-20
Publish Date: 2001-12-19

Abstract

Abstract

A novel Digital Phase-Tracking Loop(DPTL) thoroughly eliminating hangup effect in high SNR is proposed to fulfil fast phase acquisition. The theory of finite Markov chains is utilized to evaluate the phase acquisition time in the presence of additive band-limited white Gaussian noise. Both of the calculated and simulated results indicate that the hangup effect leading to prolonged phase transients owing to the presence of the dead zone around rad is effectively removed so phase acquisition time of the described DPTL is much shorter than that of the conventional zero-crossing DPLL utilizing a dead zone quantizer. The DPTL can be used in such applications as distance measurement where the frequency of the received signal is known,

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References(1)

References

F.M. Gardner, Hangup in phase-locked loops, IEEE Trans. on Commun., 1980, COM-25(10),1210-14.[2]N.A. DAndrea, et al, Multilevel quantized DPLL behavior with phase-and frequency-step plus noise input, IEEE Trans. on Commun., 1980, COM-28(8), 1373-1382.[3]M.P. Fitz, et al, A performance analysis of a digital PLL based MPSK demodulator, IEEE Trans.on Commun., 1995, COM-43(2/3/4), 1192-1201.[4]H. Meyr, L. Popken, Phase acquisition statistics for phase-locked loops, IEEE Trans. on Commun., 1980, COM-28(8), 1365 72.[5]J.G. Kemeny, et al, Finite Markov Chains, Princeton, NJ, D. Van Nostrand Com. Inc., 1960,chapt. 3. ［6］Feng Zhenghe, Huang Jingyu, Chen Yaqin, et al, A novel narrow-bandwidth high-accuracy ranging system for weather balloon, Proc. of ICMMT2000, Beijing, 2000, 553-556.

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