Results 11 to 20 of about 260,315 (307)
Information and Inference, 2016 In this paper we study the identification of a time-varying linear system from its response to a known input signal. More specifically, we consider systems whose response to the input signal is given by a weighted superposition of delayed and Doppler shifted versions of the input.
Reinhard Heckel +2 more
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High Resolution FDMA MIMO Radar [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 2020 Traditional multiple input multiple output radars, which transmit orthogonal coded waveforms, suffer from range-azimuth resolution trade-off. In this work, we adopt a frequency division multiple access (FDMA) approach that breaks this conflict. We combine narrow individual bandwidth for high azimuth resolution and large overall total bandwidth for high
David Cohen +2 more
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Multi-Doppler resolution automotive radar [PDF]
2017 25th European Signal Processing Conference (EUSIPCO), 2017 Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Oded Bialer, Sammy Kolpinizki
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Super-Resolution in Automotive Pulse Radars
IEEE Journal of Selected Topics in Signal Processing, 2021 In this work we consider a mmWave pulse radar and study the problem of super-resolving the echoes produced by multiple prospective targets. We derive a novel signal model wherein an observed echo is represented in term of a conveniently-structured steering vector and its associated multi-dimensional frequency vector related to the target location; we ...
Adrián Vega Delgado +3 more
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Super-Resolution Angle Estimation Algorithm using Low Complexity MUSIC-Based RELAX for MIMO FMCW Radar [PDF]
Journal of Electromagnetic Engineering and ScienceA novel super-resolution angle estimation algorithm using low complexity-multiple signal classification (LC-MUSIC)-based relaxation (RELAX) for multiple-input multiple-output (MIMO) frequency-modulated continuous-wave (FMCW) radar is proposed in this ...
Bong-Seok Kim +4 more
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High‐resolution radar measurements of snow avalanches [PDF]
Geophysical Research Letters, 2013 Two snow avalanches that occurred in the winter 2010–2011 at Vallée de la Sionne, Switzerland, are studied using a new phased array FMCW radar system with unprecedented spatial resolution. The 5.3 GHz radar penetrates through the powder cloud and reflects off the underlying denser core. Data are recorded at 50 Hz and have a range resolution better than
Vriend, N.M. +5 more
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MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]
, 2008 The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
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Super-resolution MIMO radar [PDF]
2016 IEEE International Symposium on Information Theory (ISIT), 2016 A multiple input, multiple output (MIMO) radar emits probings signals with multiple transmit antennas and records the reflections from targets with multiple receive antennas. Estimating the relative angles, delays, and Doppler shifts from the received signals allows to determine the locations and velocities of the targets.
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PDF-Euclidean Distance-Based Adaptive Waveform Selection for Maximizing Radar Practical Resolution
IEEE Access, 2019 This paper focuses on the issue of adaptive waveform selection to optimize the radar resolvability of closely located targets, which is significant in radar detection and estimation.
Chengcheng Si, Bo Peng, Xiang Li
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IET Signal Processing, 2022 Conventional inverse synthetic aperture radar (ISAR) imaging with sparse aperture usually suffers from high side lobes and wide main lobes, which limit the applications of radar super‐resolution imaging, multi‐target resolution, and cognitive ...
Lv Mingjiu +6 more
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