Complementary pair radar waveforms–evaluating and mitigating some drawbacks

Levanon, Nadav; Cohen, Itzik; Itkin, Pavel

doi:10.1109/maes.2017.160113

Cited by 31 publications

(17 citation statements)

References 10 publications

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“…In Figure 7 , we plot the results generated by some representative methods for a comparison. Figure 7 a is the result of standard transmission order with no receiving weights (which is identical to the Figure 4 a); Figure 7 b demonstrates the result of using the Prouhet–Thue–Morse (PTM) Design algorithm shown in [ 23 ]; Figure 7 c shows the AF of using a Hamming amplitude weighting [ 36 ] to the Golay complementary waveforms, and it has a similar performance as the Binomial Design algorithm (shown in Figure 4 b) in that it sacrifices the Doppler resolution for a larger sidelobe blanking area. Figure 7 d shows the result for applying both PTM Design algorithm and Hamming amplitude weighting.…”

Section: Analysis Of the Proposed Signal Processing Proceduresmentioning

confidence: 99%

“…In a parallel direction, Suvorova et al [ 34 , 35 ] proposed an algorithm for determining the transmission order of Golay complementary waveforms using Reed–Müller codes so that the range sidelobes of AF in the region centered at a given (nonzero) target Doppler are minimized. On the other hand, Levanon et al [ 36 ] described the shortcoming of using Golay complementary waveforms and suggested methods to mitigate some of them. They indicated that a poor performance can be observed in the AF if both the transmission order algorithm and receiving weighting approach are applied rather than use only one of them.…”

Section: Introductionmentioning

confidence: 99%

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Golay Complementary Waveforms in Reed–Müller Sequences for Radar Detection of Nonzero Doppler Targets

Zhu

Wang

Huang

et al. 2018

Sensors

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Golay complementary waveforms can, in theory, yield radar returns of high range resolution with essentially zero sidelobes. In practice, when deployed conventionally, while high signal-to-noise ratios can be achieved for static target detection, significant range sidelobes are generated by target returns of nonzero Doppler causing unreliable detection. We consider signal processing techniques using Golay complementary waveforms to improve radar detection performance in scenarios involving multiple nonzero Doppler targets. A signal processing procedure based on an existing, so called, Binomial Design algorithm that alters the transmission order of Golay complementary waveforms and weights the returns is proposed in an attempt to achieve an enhanced illumination performance. The procedure applies one of three proposed waveform transmission ordering algorithms, followed by a pointwise nonlinear processor combining the outputs of the Binomial Design algorithm and one of the ordering algorithms. The computational complexity of the Binomial Design algorithm and the three ordering algorithms are compared, and a statistical analysis of the performance of the pointwise nonlinear processing is given. Estimation of the areas in the Delay–Doppler map occupied by significant range sidelobes for given targets are also discussed. Numerical simulations for the comparison of the performances of the Binomial Design algorithm and the three ordering algorithms are presented for both fixed and randomized target locations. The simulation results demonstrate that the proposed signal processing procedure has a better detection performance in terms of lower sidelobes and higher Doppler resolution in the presence of multiple nonzero Doppler targets compared to existing methods.

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Section: Analysis Of the Proposed Signal Processing Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Golay Complementary Waveforms in Reed–Müller Sequences for Radar Detection of Nonzero Doppler Targets

Zhu

Wang

Huang

et al. 2018

Sensors

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show abstract

“…Complementary codes/sequences were originally proposed by Golay in the early 1960s [1] and have since been extensively explored (e.g. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]) as a means to completely remove autocorrelation sidelobes through combining of the pulse compressed responses resulting from pairs/sets of complementary coded pulses. However, there are two factors that limit the efficacy of complementary coding in practice: Doppler sensitivity and implementation/transmitter distortion.…”

Section: Introductionmentioning

confidence: 99%

Complementary frequency modulated radar waveforms and optimised receive processing

Jones

Mohr

McCormick

et al. 2021

IET Radar Sonar & Navi

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Design methodologies are developed for complementary frequency modulated (FM) waveforms and for optimised complementary mismatched filtering (MMF) of arbitrary non-repeating waveforms. The former is a sub-class of random FM waveforms denoted as complementary FM (Comp-FM) while the latter extends a practical instantiation of least-squares mismatched filtering yielding the mismatched complementary-on-receive filtering (MiCRFt) scheme. Both of these approaches have an emphasis on the nonideal physical effects of the radar transmitter and receiver, thereby permitting highfidelity simulation analysis and subsequent experimental demonstration of their efficacy using open-air measurements.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…A complementary set of sequences (CSS) [13–20] is a successful example of exploiting the interpulse diversity in suppressing the central ACF sidelobes. Ever since the concept of CSS [13] is proposed, there have been plenty of efforts [14, 15] devoted to the analytical construction of CSS for restricted sequence length N and set cardinality M .…”

Section: Introductionmentioning

confidence: 99%

Design of unimodular sequence train with low central and recurrent autocorrelations

Zhao

Yan

Liu

2019

IET Radar, Sonar & Navigation

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Complementary pair radar waveforms–evaluating and mitigating some drawbacks

Cited by 31 publications

References 10 publications

Golay Complementary Waveforms in Reed–Müller Sequences for Radar Detection of Nonzero Doppler Targets

Golay Complementary Waveforms in Reed–Müller Sequences for Radar Detection of Nonzero Doppler Targets

Complementary frequency modulated radar waveforms and optimised receive processing

Design of unimodular sequence train with low central and recurrent autocorrelations

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