Results 21 to 30 of about 19,053 (161)
NOISE FEATURES OF BREATH AND HEARTBEAT INFORMANT SIGNALS [PDF]
Radio Physics and Radio Astronomy, 2022 Subject and Purpose. The subject of research is the flicker noise present in informant signals of search-and-rescue radars, specifically its properties and the effect it may have on algorithms for detecting and identifying manifestations of human breath ...
O. V. Sytnik
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Wave Measurements Using Multi-Frame Processing of Marine Radar Data
Sensors, 2021 Marine radars have proven to be useful for measuring ocean waves, but the accuracy of the measurements is limited by several factors including the look-angle dependence of the radar signals as well as noise in the radar data.
David Lyzenga, Mirko Previsic
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Remote Sensing, 2019 In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying the bedrock under the ice sheet and ice information within the ice sheet.
Siyuan Cheng +5 more
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Sensors, 2020 High entropy waveforms exhibit desirable correlation properties in radar and sonar applications when multiple systems are used in close proximity. Unfortunately, the information content of these signals can impose high sampling requirements for digital ...
Aubrey N. Beal +2 more
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An improved hydrometeor detection method for millimeter-wavelength cloud radar [PDF]
Atmospheric Chemistry and Physics, 2017 A modified method with a new noise reduction scheme that can reduce the noise distribution to a narrow range is proposed to distinguish clouds and other hydrometeors from noise and recognize more features with weak signal in cloud radar observations ...
J. Ge +7 more
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A Likelihood Ratio Detector for QTMS Radar and Noise Radar
IEEE Transactions on Aerospace and Electronic Systems, 2022 7 pages, 8 ...
David Luong +2 more
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Coherent Integration Loss Due to Nonstationary Phase Noise in High-Resolution Millimeter-Wave Radars
Remote Sensing, 2021 Phase noise refers to the instability of an oscillator, which is the cause of instantaneous phase and frequency deviations in the carrier wave. This unavoidable instability adversely affects the performance of range–velocity radar systems, including ...
Chagai Levy +2 more
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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
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Remote SensingWith the number of new satellites increasing dramatically, comprehensive space surveillance is becoming increasingly important. Therefore, high-resolution inverse synthetic aperture radar (ISAR) imaging of satellites can provide an in-situ assessment of ...
Simon Anger +3 more
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Solid-state microwave noise radar
Electronics Letters, 1976 Microwave solid-state devices such as impatts can provide moderately high levels of noise power. A simple noise radar has been demonstrated using a cable delay line and correlator. Further experiments for greater range using variable s.a.w. delay lines and downconversion of the microwave signal are outlined.
J.R. Forrest, J.P. Meeson
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