Results 171 to 180 of about 7,040 (212)
Some of the next articles are maybe not open access.
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
openaire +1 more source
The Doppler Radar Signals Processing
2019 9th International Conference on Advanced Computer Information Technologies (ACIT), 2019A spectral method for processing Doppler radar signals is proposed. Discrete fast Fourier transform is commonly used in communications (areas) in both mobile phone processes and devices for compressing audio and video to transmit via telecommunications networks. For now the relevant objective is to increase the efficiency of these systems.
Volodymyr Shutko +4 more
openaire +1 more source
Microwave Doppler Radar Experiment on a River
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Methods for measuring of sea currents are currently being actively developed. Significant success has been achieved at the middle incidence angles, when the scattering mechanism is presumed to be resonant. This paper presents results from experiments with Doppler radar installed on the bridge over a river.
Vladimir Yu. Karaev +5 more
openaire +1 more source
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 ...
R.J. Doviak, D.S. Zrnic, D.S. Sirmans
openaire +1 more source
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 ...
R.J. Doviak, D.S. Zrnic, D.S. Sirmans
openaire +1 more source
Estimation Of Range-doppler Radar Images
1993 IEEE International Symposium on Circuits and Systems, 2002It is shown that most accurate reconstruction of a range-Doppler target density that can be computed from N waveforms and their echoes is obtained by transmitting the singular functions corresponding to the N largest singular values of two kernels derived from the target density.
openaire +1 more source
IEEE Transactions on Aerospace and Navigational Electronics, 1964
Computation of the entire clutter spectrum for Doppler radar has been reduced to a few simple formulas, by integration of reflected energy between constant Doppler loci, using the fourth power range law. The results are widely applicable, and have been found in agreement with both flight tests and a computer program study.
J. L. Farrell, R. L. Taylor
openaire +1 more source
Computation of the entire clutter spectrum for Doppler radar has been reduced to a few simple formulas, by integration of reflected energy between constant Doppler loci, using the fourth power range law. The results are widely applicable, and have been found in agreement with both flight tests and a computer program study.
J. L. Farrell, R. L. Taylor
openaire +1 more source
Doppler Radar: The Joint Doppler Operational Project
Weatherwise, 1979(1979). Doppler Radar: The Joint Doppler Operational Project. Weatherwise: Vol. 32, No. 2, pp. 72-75.
Donald W. Burgess +5 more
openaire +1 more source
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.
Ehsan Yavari +3 more
openaire +1 more source
Observing littoral waves by Doppler radar
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009The offshore observation of the wavefield with coherent radar systems consist a common practice for the study of the electromagnetic waves probing the sea surface waves and for the extraction of information of the sea waves. In this investigation, a Dopplerized, horizontally polarized, nautical radar is utilized for the monitoring of the wavefield ...
Stylianos Flampouris +2 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source