Structured random measurements in signal processing [PDF]
, 2014 Compressed sensing and its extensions have recently triggered interest in randomized signal acquisition. A key finding is that random measurements provide sparse signal reconstruction guarantees for efficient and stable algorithms with a minimal number ...
Krahmer, Felix, Rauhut, Holger
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Rotating Interferometer-based Algorithm for Parameter Estimation of Near-field Source
Leida xuebao, 2015 This paper proposes a novel rotating interferometer-based algorithm for parameter estimation of nearfield source. The algorithm exploits the rotation of a single long baseline interferometer and the integration operation of the phase to unwrap the phase ...
Ma Jing-tao +3 more
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MIMO radar techniques: two-stage constant false alarm rate detection for fast-fluctuating targets
The Journal of Engineering, 2019 Here, the authors analyse a two-step constant false alarm rate (CFAR) detection problem in distributed sensor system (e.g. statistical multiple-input multiple-output (MIMO) radar) for fast-fluctuating targets (TS-AMF-II).
Zhihua Li +3 more
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MEO SAR Imaging Based on Imaging Coordinate System Optimization
Leida xuebao, 2020 In the Medium-Earth-Orbit Synthetic Aperture Radar (MEO SAR), the curved trajectory and long synthetic aperture time lead to a two-dimensional spatial variation in the signals.
Hang LI +5 more
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Noise Variance Estimation In Signal Processing [PDF]
, 2007 We present a new method of estimating noise variance. The method is applicable for 1D and 2D signal processing. The essence of this method is estimation of the scatter of normally distributed data with high level of outliers. The method is applicable
Makovoz, David
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Multi-Resolution STAP for Enhanced Ultra-Low-Altitude Target Detection
Remote Sensing, 2021 In this paper, an ultra-low-altitude target (ULAT) detection approach, referred to as the multi-resolution space-time adaptive processing (STAP), is proposed to enhance the target detection performance in a missile-borne radar system.
Haodong Li +5 more
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System Realization of Broad Band Digital Beam Forming for Digital Array Radar
Leida xuebao, 2013 Broad band Digital Beam Forming (DBF) is the key technique for the realization of Digital Array Radar (DAR). We propose the method of combination realization of the channel equalization and DBF time delay filter function by using adaptive Sample Matrix ...
Wang Feng +4 more
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A SIFT Algorithm for Bistatic SAR Imaging in Spaceborne Constant-offset Configuration (in English)
Leida xuebao, 2013 Focusing on the problem of the space-variance of the range cell migration term for bistatic Synthetic Aperture Radar (SAR), a Scaled Inverse Fourier Transform (SIFT) based imaging algorithm for constant-offset configuration bistatic SAR data processing ...
Chen Shi-chao +3 more
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Causal Diffusion Models for Generalized Speech Enhancement
IEEE Open Journal of Signal ProcessingIn this work, we present a causal speech enhancement system that is designed to handle different types of corruptions. This paper is an extended version of our contribution to the “ICASSP 2023 Speech Signal Improvement Challenge”.
Julius Richter +5 more
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Improved range model based on parameter estimation for high resolution and high squint LEO SAR
The Journal of Engineering, 2019 Due to the curve of the LEO synthetic aperture radar (SAR) orbit and the rotation of the earth, the high resolution imaging for LEO SAR is always facing the problem of obtaining accurate range history.
Tong Gu +3 more
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