Results 81 to 90 of about 10,592,887 (162)

Modified GLRT signal detection algorithm

, 2000
The problem of signal detection in unknown Gaussian interference utilizing an adaptive array is considered here. Two modified generalized likelihood ratio test (GLRT) detectors are suggested that improve on the performance of Kelly\u27s GLRT when the ...
Ayoub, T. F., Haimovich, A. M.
core   +1 more source

Knowledge-Aided Target Detection for Multistatic Passive Radar

IEEE Access, 2019
This paper studies the detection problem for multistatic passive radar. We consider scenarios where prior knowledge about the spectrum and peak-to-average ratio (PAR) of the non-cooperative illuminators of opportunity (IOs) is available.
Guohao Sun, Wei Zhang, Jun Tong, Zishu He, Zhihang Wang   +4 more
doaj   +1 more source

Analytical Coherent Detection in High-Resolution Dual-Polarimetric Sea Clutter with Independent Inverse Gamma Textures

Remote Sensing
Polarization diversity has been widely used in maritime radars to improve target detection performance. Full utilization of the polarimetric characteristics of sea clutter is the key to designing effective polarimetric detectors.
Tingyu Duan, Penglang Shui, Jianming Wang, Shuwen Xu   +3 more
doaj   +1 more source

A Modal-Domain Adaptive Subspace Detector in a Deep-Sea Environment

IEEE Access, 2019
In deep-sea environments, the conventional adaptive subspace detector (ASD) is realized in the hydrophone domain by applying the generalized likelihood ratio test (GLRT), in which acoustic signals lie in lower-dimensional modal subspaces. When the number
Dezhi Kong, Chao Sun, Mingyang Li, Xionghou Liu, Lei Xie   +4 more
doaj   +1 more source

Robust target identification using a modified generalized likelihood ratio test

, 2014
In order to correctly identify a remote target, an efficient and robust target signature identification technique is required. Radar target identification based on complex natural resonances (CNRs) has drawn the interest of many researchers following the
Shuley, Nicholas V. Z., Chen, Wei Cher
core   +1 more source

Generalized detector as a spectrum sensor in cognitive radio networks [PDF]

Radioengineering, 2015
The implementation of the generalized detector (GD) in cognitive radio (CR) systems allows us to improve the spectrum sensing performance in comparison with employment of the conventional detectors.
M.S.Shbat, V.P.Tuzlukov
doaj  

A Novel Decoder for Unknown Diversity Channels Employing Space-Time Codes

EURASIP Journal on Advances in Signal Processing, 2002
We suggest new decoding techniques for diversity channels employing space time codes (STC) when the channel coefficients are unknown to both transmitter and receiver.
Erez Elona, Feder Meir
doaj   +1 more source

An Adaptive Radar Target Detection Method Based on Alternate Estimation in Power Heterogeneous Clutter

Remote Sensing
Multichannel radars generally need to utilize a certain amount of training samples to estimate the covariance matrix of clutter for target detection.
Daipeng Xiao, Weijian Liu, Hui Chen, Hao Li, Binbin Li   +4 more
doaj   +1 more source

Gridless GLRT Approach for Polarimetric SAR Tomography

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Tomographic synthetic aperture radar is a fundamental imaging technique for urban environments' mapping and monitoring. Yet, its performance is often limited by the discrete height grid used in conventional reconstruction methods, leading to off ...
Nabil Haddad, Karima Hadj-Rabah, Alessandra Budillon, Gilda Schirinzi   +3 more
doaj   +1 more source

Doppler-Spread Space Target Detection Based on Overlapping Group Shrinkage and Order Statistics

Remote Sensing
The Doppler-spread problem is commonly encountered in space target observation scenarios using ground-based radar when prolonged coherent integration techniques are utilized.
Linsheng Bu, Tuo Fu, Defeng Chen, Huawei Cao, Shuo Zhang, Jialiang Han   +5 more
doaj   +1 more source