Results 1 to 10 of about 45,079 (178)
Improving radar performance with constant envelope multi-level chirp
Tehnički Glasnik, 2019 M-level Continuous Phase Chirp Modulation is considered for data transmission. In this article, we would like to propose a new approach to transmitting information with the help of multi-level wave guide signaling. The main problem with the classic chirp
Farhad Bahadori-Jahromi +1 more
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ENVELOPE FLUCTUATIONS DISTRIBUTION OF SIMPLE RADAR PULSE BACKSCATTERING IN RARIFIED MEDIUM
Научный вестник МГТУ ГА, 2018 The basis of modern radar techniques is the direct use of radio-physical data on the power of backscattering. At the same time, the data volume received from the radar allows us to form new estimates and essentially specify classical ones.
D. A. Denisenkov +2 more
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Advancing Remote Life Sensing for Search and Rescue: A Novel Framework for Precise Vital Signs Detection via Airborne UWB Radar [PDF]
SensorsNon-contact vital signs detection of the survivors based on bio-radar to identify their life states is significant for field search and rescue. However, when transportation is interrupted, rescue workers and equipment are unable to arrive at the disaster
Yu Jing +6 more
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Frequency Discrimination Method Using Asymmetric Transmission Time in FSK Radar [PDF]
Journal of Electromagnetic Engineering and Science, 2022 A frequency discrimination method based on transmission time control is proposed for effective absolute distance measurement using frequency-shift keying (FSK) radar. In FSK radar, each frequency is transmitted for different durations using an asymmetric
Jae Young Sim, Jong-Ryul Yang
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A study on characteristic indexes of railway ballast bed under high-frequency radar [PDF]
Railway Sciences, 2023 Purpose – In this paper, a high-frequency radar test system was used to collect the data of clean ballast bed and fouled ballast bed of ballasted tracks, respectively, for a quantitative evaluation of the condition of railway ballast bed.
Shilei Wang +4 more
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Automatic modulation classification of noise‐like radar intrapulse signals using cascade classifier
ETRI Journal, 2021 Automatic modulation classification is essential in radar emitter identification. We propose a cascade classifier by combining a support vector machine (SVM) and convolutional neural network (CNN), considering that noise might be taken as radar signals ...
Xianpeng Meng +4 more
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Sensors, 2022 In this study, a feature analysis and extraction method was proposed for specific emitter identification based on the signal generation mechanisms of radar transmitters. The generation of radar signals by radar transmitters was analyzed theoretically and
Yilin Liu +4 more
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COMPARISON OF THE IMPULSE AND M-SEQUENCE UWB RADAR SYSTEMS FOR THE ESTIMATION OF THE WALL THICKNESS [PDF]
Acta Electrotechnica et Informatica, 2019 In our laboratory, we developed a simple estimation of the wall thickness by the UWB (Ultra Wide-Band) radar system. The described technique measures the wall thickness in the two steps. The first step is a measurement of the wall relative permittivity.
Miroslav REPKO, Ján GAMEC
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ETRI Journal, 2021 Multi‐carrier waveforms have several advantages over single‐carrier waveforms for radar communication. Employing multi‐carrier complementary phase‐coded (MCPC) waveforms in radar applications has recently attracted significant attention.
Channapatna Gopalkrishna Raghavendra +2 more
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Review of Ground Penetrating Radar Applications for Water Dynamics Studies in Unsaturated Zone
Remote Sensing, 2022 For water dynamics investigation in unsaturated (vadose) zones, ground penetrating radar is a popular hydro-geophysical method because it is non-invasive for soil, has high resolution and the results have a direct link with water content.
Minghe Zhang +9 more
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