Results 241 to 250 of about 707,332 (306)
On the measurement of wind speeds in tornadoes with a portable CW/FM-CW Doppler radar
, 1991 Howard B. Bluestein, W. P. Unruh
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Polarimetric Doppler Radar [PDF]
Springer Atmospheric Sciences, 2019 Basic principles of a polarimetric Doppler radar are described in this chapter. These include formation of the transmitted EM wave by a pulsed radar, reception of the radar signal reflected from a single scatterer, and its transformation in the antenna, microwave assembly, and two receivers for orthogonally polarized components of the backscattered EM ...
Alexander V. Ryzhkov, Dusan S. Zrnic
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Dual-Use of OTFS Architecture for Pulse Doppler Radar Processing
International Radar Conference, 2022Orthogonal time frequency space (OTFS) modulation is a recently proposed modulation scheme that places the information symbols to be transmitted over the wireless channel in the delay-Doppler (DD) domain. In this paper, we argue that the OTFS discrete DD
Akshay S. Bondre, C. Richmond
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Deep Learning-Based UAV Detection in Pulse-Doppler Radar
IEEE Transactions on Geoscience and Remote Sensing, 2021With the popularity of unmanned aerial vehicles (UAVs), how to conduct automatic and effective detection to prevent unauthorized flying has become an important issue.
Chenxing Wang +3 more
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Doppler radar calibration system
IEEE Aerospace and Electronic Systems Magazine, 2012The developed prototype has proved to be a useful instrument for the calibration of Doppler/range radars. The system includes innovative solutions for the generation of Doppler and distances with high precision. It is able to generate accurate Doppler shifts with a resolution higher than 4·10 -3 Hz and speeds with an accuracy of around ±2.76 ppm - from
Fernández Fernández, Jean Raphael Olivier +5 more
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Proceedings of the IEEE, 1979
The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
D.S. Zrnic +2 more
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The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
D.S. Zrnic +2 more
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A processor for pulse-doppler radar
IEEE Transactions on Electron Devices, 1976Methods are presented for combining charge-coupled device (CCD) and surface acoustic wave (SAW) techniques to advantage for processing coherent radar signals in order to extract target range and velocity information. Experiments have validated a scheme of combined discrete CCD's to form an analog store with orthogonal input and output sequencing ...
J. B. G. Roberts +3 more
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Hand-Gesture Recognition Using Two-Antenna Doppler Radar With Deep Convolutional Neural Networks
IEEE Sensors Journal, 2019Low-cost consumer radar integrated circuits combined with recent advances in machine learning have opened up a range of new possibilities in smart sensing.
Sruthy Skaria +3 more
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IEEE Transactions on Antennas and Propagation, 2019
This paper presents the theoretical and experimental results of a new approach for multitarget vital-signs monitoring using an electromagnetic-based Doppler radar.
Mehrdad Nosrati +4 more
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This paper presents the theoretical and experimental results of a new approach for multitarget vital-signs monitoring using an electromagnetic-based Doppler radar.
Mehrdad Nosrati +4 more
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Doppler radar sensor for occupancy monitoring
2013 IEEE Radio and Wireless Symposium, 2013This paper investigates the use of Doppler radar sensor for occupancy monitoring. The feasibility of true presence is explored with Doppler radar occupancy sensors to overcome the limitations of the common occupancy sensors. The common occupancy sensors are more of a motion sensor than a presence detector.
Victor Lubecke +3 more
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