Time delay and doppler shift estimation accuracy analyses of moving targets in non-cooperative bistatic pulse radar

Xianjun, Ge; Song, Jie; He, You

doi:10.1109/icosp.2010.5656265

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Cited by 4 publications

(1 citation statement)

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“…It is shown in [1], [20], [24] that under the wideband model for a single scatterer, the CRLB of the time delay estimation is inversely proportional to the effective bandwidth of the transmitted signal. Under a similar condition, [22] proves that increasing the effective time-bandwidth product can improve the joint estimation accuracy of the time delay and the Doppler stretch.…”

Section: Introductionmentioning

confidence: 99%

Cramer-Rao Lower Bounds for the Joint Delay-Doppler Estimation of an Extended Target

Zhao

Huang

2016

IEEE Trans. Signal Process.

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Section: Introductionmentioning

confidence: 99%

Cramer-Rao Lower Bounds for the Joint Delay-Doppler Estimation of an Extended Target

Zhao

Huang

2016

IEEE Trans. Signal Process.

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Cramer-Rao lower bounds of joint delay-Doppler estimation for an extended target

Zhao¹,

Huang²

2015

2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP)

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A Doppler frequency estimation algorithm based on band mismatch

Xue

Chen

Zhang³

2014

2014 International Conference on Orange Technologies

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The Doppler frequency shift can make a mismatch in frequency band between the linear frequency modulation (LFM) signal and its matched filter. The amplitude and delay of the output pulse are based on the degree of the mismatch. An algorithm of Doppler frequency estimation is proposed basing on the amplitude of the output pulse. The algorithm sets a group of matched filters whose middle frequencies increase in an established pattern. When the echo pulse goes through them, the outputs will appear in different amplitudes and delays. The Doppler frequency is calculated by the two pulses whose amplitude is the biggest. The delay of echo will be compensated by the estimated Doppler frequency, which may achieve the target's precise location. Compared to standard processing of matched filtering, this algorithm dosen't cost more time. In addition, the Hyper-Rayleigh limit estimation can be achieved in the condition of a appropriate signal-to-noise ratio (SNR). The principle is discussed in this paper, and the simulation illustrates the feasibility and effectiveness of the algorithm.Index Terms-LFM, Doppler frequency shift, matched filter group, pulse compression.

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Time delay and doppler shift estimation accuracy analyses of moving targets in non-cooperative bistatic pulse radar

Cited by 4 publications

References 7 publications

Cramer-Rao Lower Bounds for the Joint Delay-Doppler Estimation of an Extended Target

Cramer-Rao Lower Bounds for the Joint Delay-Doppler Estimation of an Extended Target

Cramer-Rao lower bounds of joint delay-Doppler estimation for an extended target

A Doppler frequency estimation algorithm based on band mismatch

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