Filters








284 Hits in 5.5 sec

Parametric Adaptive Radar Detector with Enhanced Mismatched Signals Rejection Capabilities

Chengpeng Hao, Bin Liu, Shefeng Yan, Long Cai
2010 EURASIP Journal on Advances in Signal Processing  
The results highlight better rejection capabilities of this proposed detector for mismatched signals.  ...  We propose a parametric radar detector by introducing a design parameter to trade off the target sensitivity with sidelobes energy rejection.  ...  whitened space, which has an enhanced rejection capability for side lobe signals.  ... 
doi:10.1155/2010/375136 fatcat:re64rxxjz5fhxlu6ib56dsattm

A Doubly Parameterized Detector for Mismatched Signals

Weijian Liu, Wenchong Xie, Rongfeng Li, Qianping Zhang, Keqing Duan, Yongliang Wang
2015 Chinese journal of electronics  
Remarkably, it can achieve improved detection performance for matched signals, enhanced rejection of seriously mismatched signals, and better robustness to slightly mismatched signals than its natural  ...  In this paper, we consider the problem of adaptive multichannel signal detection in the presence of signal mismatch, and introduce a novel tunable detector, which is parameterized by two tunable parameters  ...  These detectors usually contain two individual detectors with converse capabilities of mismatched signals rejection.  ... 
doi:10.1049/cje.2015.01.025 fatcat:2xk7xrg3ingmhdqtjdis2tud6i

Multichannel adaptive signal detection: Basic theory and literature review [article]

Weijian Liu, Jun Liu, Chengpeng Hao, Yongchan Gao, Yong-Liang Wang
2021 arXiv   pre-print
In this paper we give a tutorial overview of multichannel adaptive signal detection, with emphasis on Gaussian background.  ...  Multichannel adaptive signal detection has been more than 30 years since the first multichannel adaptive detector was proposed by Kelly in 1986.  ...  For different sources of signal mismatch, different directivity properties (the capability of selectivity or robustness to signal mismatch) of the detector are preferred.  ... 
arXiv:2102.03474v1 fatcat:iqj2pbyrhvam3apfsnnecljynq

ABORT-Like Detectors: A Bayesian Approach

Francesco Bandiera, Olivier Besson, Angelo Coluccia, Giuseppe Ricci
2015 IEEE Transactions on Signal Processing  
In order to come up with detectors with good rejection capabilities, the possible presence of a fictitious signal under the null hypothesis is modeled probabilistically, as opposite to the conventional  ...  In this paper, we deal with the problem of adaptive radar detection of point-like targets in presence of noise with unknown spectral properties.  ...  An effective approach to deal with this problem has been introduced in [6] , where the adaptive beamformer orthogonal rejection test (ABORT) is proposed; such a detector takes into account rejection capabilities  ... 
doi:10.1109/tsp.2015.2451117 fatcat:i624mxyw6vbwhivp5lis6otlb4

SAM 2020 Author Index

2020 2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM)  
with Enhanced Mismatched Signals Rejection Capabilities Gong, Jian R03.2 Passive radar channel estimation based on PN sequence of DTMB signal Groll, Herbert R08.1 Parametric bootstrapping of  ...  Communications Systems: An Overview Ma, Wanli SS07.2 A Sparse Learning Based Detector with Enhanced Mismatched Signals Rejection Capabilities Ma, Yanan SS11.3 Enhanced DOA Estimation for MIMO  ... 
doi:10.1109/sam48682.2020.9104397 fatcat:cfp5gsikrzabhhcnkalahjkxze

Auto-Regressive Model Based Polarimetric Adaptive Detection Scheme Part II: Performance Assessment under Spectral Model Mismatch

Fabiola Colone, Francesca Filippini
2020 IEEE Transactions on Aerospace and Electronic Systems  
Index Termspolarimetric radar, adaptive signal detection, parametric approach, multi-channel auto-regressive process T Authorized licensed use limited to: Universita degli Studi di Roma La Sapienza.  ...  This work addresses the problem of target detection in coherent radar systems equipped with multiple polarimetric channels.  ...  Colone's research activity is devoted to radar systems and signal processing.  ... 
doi:10.1109/taes.2020.2977794 fatcat:wli7g2odyjhebcnw3o4t44ulvi

A novel approach to robust radar detection of range-spread targets [article]

Angelo Coluccia, Alessio Fascista, Giuseppe Ricci
2019 arXiv   pre-print
In addition, a new parametric detector that encompasses the GLRT as a special case is also introduced and assessed.  ...  This paper proposes a novel approach to robust radar detection of range-spread targets embedded in Gaussian noise with unknown covariance matrix.  ...  Many works have addressed the problem of enhancing either the selectivity or the robustness of adaptive detectors to mismatches.  ... 
arXiv:1903.11827v1 fatcat:nn5moac47zdclp2ds6broxz55m

Design of robust radar detectors through random perturbation of the target signature [article]

Angelo Coluccia, Giuseppe Ricci, Olivier Besson
2019 arXiv   pre-print
The paper addresses the problem of designing radar detectors more robust than Kelly's detector to possible mismatches of the assumed target signature, but with no performance degradation under matched  ...  A third parametric detector is also obtained by an ad-hoc generalization of one of such GLRTs.  ...  the degree to which mismatched signals are rejected, so obtaining behaviors in between the AMF and Kelly's detector.  ... 
arXiv:1903.08468v1 fatcat:2ze4migy35gihd2fdobajf5oy4

CFAR Feature Plane: a Novel Framework for the Analysis and Design of Radar Detectors [article]

Angelo Coluccia, Alessio Fascista, Giuseppe Ricci
2019 arXiv   pre-print
Since Kelly's pioneering work on GLRT-based adaptive detection, many solutions have been proposed to enhance either selectivity or robustness of radar detectors to mismatched signals.  ...  Novel linear and non-linear detectors are proposed with diversified robust or selective behaviors, showing that through the proposed framework it is not only possible to achieve the same performance of  ...  [17] space, so as to make it more plausible in presence of signal mismatches -an approached called adaptive beamformer orthogonal rejection test (ABORT).  ... 
arXiv:1910.00266v2 fatcat:ww4i7ve64jarxmplvvpwhlraou

SAM 2020 Conference Program

2020 2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM)  
Based Detector with Enhanced Mismatched Signals Rejection Capabilities Sudan Han (National Innovation Institute of Defense Techonology, China); Luca Pallotta and Gaetano Giunta (University of Roma Tre  ...  Chairs Robust Adaptive Monopulse Processing for Multiple Observations with Applications to TS-MIMO Radar Kai-Bor Yu (Shanghai Jiao Tong University, USA); Manuel Fernández (Independent Researcher, USA)  ... 
doi:10.1109/sam48682.2020.9104325 fatcat:axqtfgjaunaw7dix4b2fzqvkh4

Multi‐carrier and multi‐polarimetric model based adaptive target detector for passive radar systems

Francesca Filippini, Fabiola Colone
2021 IET radar, sonar & navigation  
A new adaptive detection strategy for passive radar systems that fruitfully capitalizes on signals, simultaneously emitted by the same transmitter of opportunity at different carrier frequencies and collected  ...  The conceived solution is proved to successfully enhance the capability to discriminate targets, thanks to an effective disturbance rejection performed at each frequency channel as well as a target echo  ...  a parametric adaptive detector was derived for a generic multi-polarimetric radar system.  ... 
doi:10.1049/rsn2.12061 fatcat:b5q3724bpzf63iop7ze6o5uwdi

Advances in Signal Processing for Maritime Applications

Frank Ehlers, Warren Fox, Dirk Maiwald, Martin Ulmke, Gary Wood
2010 EURASIP Journal on Advances in Signal Processing  
Richardt et al. present the acoustic particle detection with the ANTARES detector.  ...  decoding (BICM-ID) in conjunction with adaptive Doppler compensation.  ... 
doi:10.1155/2010/512767 fatcat:3dzeaptjy5bjbiqzkvoau7jepm

Polarimetric Passive Radar: a Practical Approach to Parametric Adaptive Detection

Francesca Filippini, Fabiola Colone
2020 IEEE Transactions on Aerospace and Electronic Systems  
Index Termspassive radar, polarization diversity, multichannel autoregressive model, FM radio signal, adaptive target detection P F. Filippini and F. Colone are with the  ...  Despite this approach operates with a limited number of adaptive degrees of freedom, the long integration time exploited by passive radar typically requires a substantial computational cost and ad hoc  ...  In fact, the derived parametric adaptive detector effectively rejects the disturbance and in turn significantly increases the target discrimination capability.  ... 
doi:10.1109/taes.2020.3008548 fatcat:7vsv225ax5bgpd5ggdu2xp7dmy

Adaptive remote sensing techniques implementing swarms of mobile agents

Stewart M. Cameron, Guillermo M. Loubriel, Rush D. Robinett III, Keith M. Stantz, Michael W. Trahan, John S. Wagner, Edward M. Carapezza, David B. Law, K. Terry Stalker
1999 Unattended Ground Sensor Technologies and Applications  
This methodology is being used to field an adaptive ground-penetrating impulse radar from a superposition of small radiating dipoles for detection of underground structures and to detecthemediate hazardous  ...  An alternative approach is to implement adaptive remote-sensing techniques with swarms of mobile agents employing collective behavior for optimization of mapping signatures and positional orientation (  ...  We have investigated the use of a previously developed active reflectance imaging technique based on an optical parametric amplifier (OPA) receiver to enhance detector sensitivity, signal fideli~, reception  ... 
doi:10.1117/12.357131 fatcat:tuy57pkr5vhs5fkyasp7nfo6oe

RadioSES: mmWave-Based Audioradio Speech Enhancement and Separation System [article]

Muhammed Zahid Ozturk, Chenshu Wu, Beibei Wang, Min Wu, K. J. Ray Liu
2022 arXiv   pre-print
Speech enhancement and separation have been a long-standing problem, especially with the recent advances using a single microphone.  ...  In this work, we propose RadioSES, an audioradio speech enhancement and separation system that overcomes inherent problems in audio-only systems.  ...  For target detection, we utilize a classical approach in the radar literature, constant false alarm rate (CFAR) detector [57] , which adaptively estimates the background noise for different bins and thresholds  ... 
arXiv:2204.07092v1 fatcat:hff3bo5uhng3jesk66orktzyd4
« Previous Showing results 1 — 15 out of 284 results