Doppler compensation for binary phase-coded radar signals in presence of noise jamming

Matousek, Zdenek; Ochodnicky, Jan; Babjak, Marian; Puttera, Jozef

doi:10.1109/irs.2016.7497318

Cited by 11 publications

(8 citation statements)

References 9 publications

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“…where η ¼ α À f dp is defined and is considered a constant. In Equation (25), it is significant to observe that the firstorder and the quadric coupling term with the range frequency f τ are removed regardless of the target velocity, which means the proposed method can correct the RM without prior information of the target motion.…”

Section: Range Walk Correctionmentioning

confidence: 99%

“…After the RM correction, the quadric phase term in Equation (25), which is induced by the target's acceleration, should be estimated and compensated. Without this process, the target energy distributed in different partitions within the CPI cannot be aligned completely, and then the coherent integration ZUO ET AL.…”

Section: Doppler Frequency Migration Eliminationmentioning

confidence: 99%

“…It should be noted that these methods are applicable based on the support of fast and slow time domain concepts, which means that the received continuous-time signals should be divided and processed in pulse mode for PBR. Nevertheless, the PBR signals (such as DTMB, LTE signal) suffer from Doppler mismatch in pulse compression because of the characteristics of the near-ideal thumbtack ambiguity function [25]; thus the long-time coherent integration gain is severely degraded in case of detecting the high-speed and far-distance moving target.…”

Section: Introductionmentioning

confidence: 99%

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Long‐time coherent integration based on intra‐partition range‐Doppler processing for passive bistatic radar

Zuo

Wang

Sui

2021

IET Radar Sonar & Navi

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The Doppler mismatch, range migration and Doppler frequency migration (DFM) correction problem for realizing the long-time coherent integration of space moving target with high-speed manoeuvring performance in passive bistatic radar is considered. A novel method based on intra-partition range-Doppler (RD) processing is proposed, where the intra-partition RD processing is first performedtoachievethe pre-accumulationof target's energy in each partition and eliminate the Doppler mismatch. Then, the generalized keystone transform is employed to correct the range curvature. After that, the residual range walk is removed with the centre frequency of the coarse Doppler filter related to the target velocity. Furthermore, matched filtering process is carried out to compensate the DFM. The advantage of the method is that it can obtain superior coherent integration and detection performance in comparison with the existing algorithms. Numerical simulations are presented to demonstrate the coherent integration and the detection performance for a highspeed target. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Section: Range Walk Correctionmentioning

confidence: 99%

Section: Doppler Frequency Migration Eliminationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long‐time coherent integration based on intra‐partition range‐Doppler processing for passive bistatic radar

Zuo

Wang

Sui

2021

IET Radar Sonar & Navi

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“…Doppler compensation for BPSK PMCW has been investigated in the past, which resulted in several algorithms to alleviate its Doppler vulnerability, e.g. based on a recursive MMSE method [12] or multichannel correlators emulating for various Doppler shifts [13]. These would require tremendous computational powers, which currently does not fit industrial needs for a System on Chip solution.…”

Section: Introductionmentioning

confidence: 99%

Doppler Influence on Waveform Orthogonality in 79 GHz MIMO Phase-Coded Automotive Radar

Overdevest

Jansen

Uysal

et al. 2020

IEEE Trans. Veh. Technol.

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Utilization of phase-coded waveforms in automotive MIMO radars for short to medium range applications is studied. Performances of three most-promising binary code families (Gold, APAS and ZCZ sequences) are compared. Design tradeoffs of practical implementation of phased-coded waveforms for MIMO radar are analyzed for the first time for a possible future System on Chip implementation. Orthogonality of the waveforms in case of moving targets is analyzed. The implications of the code properties for the Range-Doppler map, as well as the Range-Angular map, are pointed out. Doppler frequency shift impact on such performance indicators as the target peak power and range sidelobe levels in the range-Doppler plane, as well as the range and azimuth sidelobe behavior, and the angular error in the azimuthal plane have been comprehensively studied for the first time. It is shown that the time-staggered transmit scheme with autocorrelation properties only (while introducing azimuthal errors) results in improved performance compared to code division multiplexing with auto-and cross-correlation properties.

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“…In this paper, inspired by the Doppler compensation [6–8] processing of Doppler sensitive signals, we present a modified range‐Doppler (RD) processing method. The modified RD processing method extends the unambiguous Doppler coverage by adding additional compensating channels.…”

Section: Introductionmentioning

confidence: 99%

Waveform optimisation for unambiguous Doppler extension

Mao

Yan

2019

IET Radar, Sonar & Navigation

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Doppler compensation for binary phase-coded radar signals in presence of noise jamming

Cited by 11 publications

References 9 publications

Long‐time coherent integration based on intra‐partition range‐Doppler processing for passive bistatic radar

Long‐time coherent integration based on intra‐partition range‐Doppler processing for passive bistatic radar

Doppler Influence on Waveform Orthogonality in 79 GHz MIMO Phase-Coded Automotive Radar

Waveform optimisation for unambiguous Doppler extension

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