Results 1 to 10 of about 908 (161)
Sidelobe Suppression with Resolution Maintenance for SAR Images via Sparse Representation [PDF]
Sensors, 2018 Severe sidelobe interference is one of the major problems with traditional Synthetic Aperture Radar (SAR) imaging. In the observation scene of sea areas, the number of targets in the observation scene is so small that targets can be regarded as sparse ...
Xiaoxiang Zhu +4 more
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Sidelobe Suppression Techniques for Near-Field Multistatic SAR [PDF]
Sensors, 2023 Multirotor Unmanned Air Systems (UAS) represent a significant improvement in capability for Synthetic Aperture Radar (SAR) imaging when compared to traditional, fixed-wing, platforms.
George A. J. Price +3 more
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Sidelobe suppression for cosine-sum window functions via chaotic particle swarm optimization [PDF]
Scientific ReportsSidelobe suppression is a common and critical issue in radar pulse compression processing. However, the traditional window functions such as Hamming and Hanning windows are all limited to fixed weight parameters, and can only be applied to a specific ...
Zeyin Dong, Yuqi Chen
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A Radar Waveform Design Method Based on Multicarrier Phase Coding for Suppressing Autocorrelation Sidelobes [PDF]
SensorsMulticarrier phase-coded radar waveforms show significant potential in broadband radar applications by integrating phase coding with orthogonal frequency division multiplexing (OFDM) technology.
Ji Li, Liu Ye, Wei Wang
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A hybrid analytical–optimization framework for sidelobe suppression and beamwidth control in linear antenna arrays [PDF]
Scientific ReportsThis paper presents a novel hybrid analytical–optimization framework for sidelobe suppression and beamwidth control in uniform linear antenna arrays (ULAAs). The primary objective is to achieve significant sidelobe level (SLL) reduction while maintaining
Ahmed M. Elkhawaga +2 more
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Sensors, 2023 Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu +4 more
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RESOLUTION ENHANCEMENT ALGORITHM FOR SPACEBORN SAR BASED ON HANNING FUNCTION WEIGHTED SIDELOBE SUPPRESSION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Resolution and sidelobe are mutual restrict for SAR image. Usually sidelobe suppression is based on resolution reduction. This paper provide a method for resolution enchancement using sidelobe opposition speciality of hanning window and SAR image.
C. Li, X. Zhou, D. Tang, Z. Zhu
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A technique for sidelobe suppression in OFDM systems [PDF]
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005 In this paper, a new technique for sidelobe suppression in orthogonal frequency-division multiplexing (OFDM) systems is proposed and investigated. This technique can be applied to both pure OFDM and OFDM based multiple-access systems to improve spectral efficiency.
Cosovic, Ivan +2 more
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Research on Subcarrier Weighting Technology Based on OFDM [PDF]
Jisuanji gongcheng, 2018 Based on the inherent high sidelobe problem in Orthogonal Frequency-Devision Multiplexing (OFDM) system,a sidelobe suppression method for OFDM system is proposed based on subcarrier weighting method.The subcarrier weights are determined in such a way ...
XUE Mei,ZHOU Jie,SHAO Genfu
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Coordinating complementary waveforms for sidelobe suppression [PDF]
2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011 We present a general method for constructing radar transmit pulse trains and receive filters for which the radar point-spread function in delay and Doppler, given by the cross-ambiguity function of the transmit pulse train and the pulse train used in the receive filter, is essentially free of range sidelobes inside a Doppler interval around the zero ...
Wenbing Dang +4 more
openaire +2 more sources