Results 31 to 40 of about 168,550 (300)
Radio Polarimetry of Tycho's SNR [PDF]
Symposium - International Astronomical Union, 1990 The remnant of Tycho's supernova of 1572 has been polarimetrically imaged using the 4 configurations of the VLA at wavelengths of 22 and 6 cm. A few data were also obtained at wavelengths of 21, 19, and 18 cm in the B configuration to check for any ambiguities in the Faraday rotation measurements and to look for deviations from the λ2 dependence of the
John R. Dickel +2 more
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Detection performance analysis of hybrid MIMO radar
The Journal of Engineering, 2019 This study focuses on the detection performance analysis of a notional hybrid MIMO radar, which can be seen as a combination of the phased-array and distributed MIMO radars.
Qilei Zhang, Manqing Wu, Wenxian Yu
doaj +1 more source
Optical coherence tomography with a Fizeau interferometer configuration [PDF]
, 2005 We report the investigation of a Fizeau interferometer-based OCT system. A secondary processing interferometer is necessary in this configuration, to compensate the optical path difference formed in the Fizeau interferometer between the end of the ...
H. D. Ford +7 more
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SNR Comparisons of Beamforming Strategies [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2007 This paper defines the echo signal-to-noise ratio (eSNR) for pulse-echo systems that adapts to the effects of shift-varying impulse responses, spatiotemporal coding, and various beamformers. Measurement techniques using point targets or random scattering media can be interrelated for a broad range of experimental conditions through the eSNR.
Jie, Liu +2 more
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SNR Walls for Signal Detection [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2008 This paper considers the detection of the presence/absence of signals in uncertain low SNR environments. Small modeling uncertainties are unavoidable in any practical system and so robustness to them is a fundamental performance metric. The impact of these modeling uncertainties can be quantified by the position of the "SNR wall" below which a detector
Rahul Tandra, Anant Sahai
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Clinical utility of an endorectal MRI-guided prostate probe: preliminary examinations
Current Directions in Biomedical Engineering, 2017 Prostate cancer (PCa) is one of the most common cancer diseases in men in the western countries [1]. Besides the palpation, and the amount of prostate-specific-antigen’s (PSA) inside the blood, the current diagnostic imaging technologies are not ...
Tödter Julia +4 more
doaj +1 more source
Analisis Unjuk Kerja Sistem Digital Video Broadcast (DVB)
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012 DVB (Digital Video Broadcasting) adalah salah satu sistem yang digunakan untuk mentransmisikan siaran TV/Video digital hingga sampai ke pengguna akhir (end-user).
Dedi Usman Effendy +2 more
doaj +1 more source
Distance Estimate of Tycho’s SNR
Journal of Physics: Conference Series, 2018 5 pages, 2 figures, conference PhysicA.SPb ...
Kozlova, A. V., Blinnikov, S. I.
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A Model of OFDM based Maritime VHF Communication System for Data Exchange
Polish Maritime Research, 2018 In the maritime Very High Frequency (VHF) band, there are no systems for transmitting large amounts of data. Therefore, it is necessary to develop new systems that would modernize the Global Maritime Distress and Safety System (GMDSS), significantly ...
Valčić Sanjin +2 more
doaj +1 more source
Communications, 2023 Adaptive algorithms are used in updating the filter coefficients for active noise cancellation applications in reduction of vehicle cabin noise. The performance of the adaptive algorithms in low-frequency noise cancellation depends on how efficiently it ...
Janak Kapoor +3 more
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