Results 41 to 50 of about 1,617,189 (138)
IEEE Journal of Microwaves, 2022 In radar and communication systems, phase noise is one of the main causes of performance degradation. Phase noise increases the uncertainty in radar measurements and limits the achievable data rates in communication systems.
Peter Tschapek +4 more
doaj +1 more source
Direction detector for distributed targets in unknown noise and interference [PDF]
, 2013 Adaptive detection of distributed radar targets in homogeneous Gaussian noise plus subspace interference is addressed. It is assumed that the actual steering vectors lie along a fixed and unknown direction of a preassigned and known subspace, while ...
Bandiera, Francesco +3 more
core +1 more source
Radar matched filtering using the fractional fourier transform [PDF]
, 2010 -A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine +2 more
core +4 more sources
Jurnal Nasional Teknik Elektro, 2014 Detection of low signal and determination target locations is the basis and important in the system radar. Performance of radar can enhanced with enhancement signal-to-noise ratio in the receiver.
Raisah Hayati, Rahmadi Kurnia
doaj +1 more source
Characterizing Phase Noise in Radar
, 2023 There is some confusion in the radar community on the handling of phase noise in radar because current definitions give rise to divergent integrals. It is shown that the spectrum of a phase noise modulated signal rather than the spectrum of the phase noise modulating function is the applicable function for coherent radar system design.
Werner Steyn, PW Van Der Walt
openaire +1 more source
Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms
International Journal of Distributed Sensor Networks, 2011 Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality.
Qihe Pan, Ram M. Narayanan
doaj +1 more source
CLEAN deconvolution for sidelobe suppression in random noise radar
, 2008 Copyright © 2008 IEEEThe term random noise radar (RNR) refers to a class of radar using random noise as its transmitted signal. Noise waveforms have proven useful in a number of radar applications; however, dynamic range performance suffers due to high ...
D.A. Gray, R. D. Fry, Fry, R., Gray, D.
core +1 more source
Novel Analytic Method for Determining Micro-Doppler Measurement Sensitivity in Life-detection Radar
Leida xuebao, 2016 In recent years, a new non-contact life detecting device has been developed, known as life-detection radar, which can measure bodily movement and locate human subjects.
Hu Cheng, Liao Xin, Xiang Yin, Zeng Tao
doaj +1 more source
Enhanced monopulse radar tracking using fractional Fourier filtering in the presence of interference [PDF]
, 2010 Monopulse radars are used to track a target that appears in the look direction beam width. Significant distortion is produced when manmade high power interference (jamming) is introduced to the radar processor through the radar antenna main lobe (main ...
Elgamel, Sherif A.E.H., Soraghan, J.J.
core +3 more sources
Detection and Estimation of Abrupt Changes contaminated by Multiplicative Gaussian Noise [PDF]
, 1998 The problem of abrupt change detection has received much attention in the literature. The Neyman Pearson detector can be derived and yields the well-known CUSUM algorithm, when the abrupt change is contaminated by an additive noise.
Jean-Yves Tourneret +1 more
core +1 more source