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Doppler estimating and compensating method based on phase
Alternative TitleDoppler estimating and compensating method based on phase
Chen Gang1; Zhao Zhengyu1; Nie Xuedong2; Shi Shuzhu1; Yang Guobin1; Su Fanfan1
2009
Source PublicationJOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS
ISSN1004-4132
Volume20Issue:4Pages:681-686
AbstractAccording to the Doppler sensitive of the phase coded pulse compression signal, a Doppler estimating and compensating method based on phase is put forward to restrain the Doppler sidelobes, raise the signal-to-noise ratio and improve measuring resolution. The compensation Method is used to decompose the echo to amplitude and phase, and then compose the new compensated echo by the amplitude and the nonlinear component of the phase. Furthermore the linear component of the phase can be used to estimate the Doppler frequency shift. The computer simulation and the real data processing show that the method has accurately estimated the Doppler frequency shift successfully restrained the energy leakage on spectrum, greatly increased the echo signal-to-noise ratio and improved the detection performance of the radio system in both time domain and frequency domain.
Other AbstractAccording to the Doppler sensitive of the phase coded pulse compression signal,a Doppler estimating and compensating method based on phase is put forward to restrain the Doppler sidelobes,raise the signal-to-noise ratio and improve measuring resolution.The compensation method is used to decompose the echo to amplitude and phase,and then compose the new compensated echo by the amplitude and the nonlinear component of the phase.Furthermore the linear component of the phase can be used to estimate the Doppler frequency shift.The computer simulation and the real data processing show that the method has accurately estimated the Doppler frequency shift,successfully restrained the energy leakage on spectrum,greatly increased the echo signai-to-noise ratio and improved the detection performance of the radio system in both time domain and frequency domain.
KeywordSYSTEMS ionosphere Doppler estimation Doppler compensation phase
Indexed ByCSCD
Language英语
CSCD IDCSCD:3650958
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/153210
Collection中国科学院金属研究所
Affiliation1.武汉大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Chen Gang,Zhao Zhengyu,Nie Xuedong,et al. Doppler estimating and compensating method based on phase[J]. JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,2009,20(4):681-686.
APA Chen Gang,Zhao Zhengyu,Nie Xuedong,Shi Shuzhu,Yang Guobin,&Su Fanfan.(2009).Doppler estimating and compensating method based on phase.JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,20(4),681-686.
MLA Chen Gang,et al."Doppler estimating and compensating method based on phase".JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS 20.4(2009):681-686.
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