Results 21 to 30 of about 23,415 (245)

Clutter Rejection for FM Ranging Airborne Radar [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In airborne radar, it is important to reject clutter signals to detect targets of interest. High pulse repetition frequency (HPRF) waveform provides robust detection performance in a clutter environment by separating clutter signals from the target echo ...
Ji Hwan Yoon, Yongmin Kim
doaj   +1 more source

Micro-Doppler Ambiguity Resolution for Wideband Terahertz Radar Using Intra-Pulse Interference

open access: yesSensors, 2017
Micro-Doppler, induced by micro-motion of targets, is an important characteristic of target recognition once extracted via parameter estimation methods.
Qi Yang   +4 more
doaj   +1 more source

Algorithms for Doppler Spectral Density Data Quality Control and Merging for the Ka-Band Solid-State Transmitter Cloud Radar

open access: yesRemote Sensing, 2019
The Chinese Ka-band solid-state transmitter cloud radar (CR) can operate in three different work modes with different pulse widths and coherent integration and non-coherent integration numbers to meet the requirement for long-term cloud measurements. The
Liping Liu, Jiafeng Zheng
doaj   +1 more source

Modeling of Monopulse Radar Signals Reflected from Ground Clutter in a Time Domain Considering Doppler Effects [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
To evaluate the performance of a monopulse radar system, it is necessary to accurately model radar return signals from the ground surface in a time domain.
Jeong-Hun Nam   +4 more
doaj   +1 more source

Sub-Nyquist pulse Doppler MIMO radar [PDF]

open access: yes2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017
Pulse Doppler multiple input multiple output (MIMO) radar allows to simultaneously detect targets' range, azimuth and velocity. Achieving high resolution requires a large number of transmit and receive antennas, as well as high sampling rates leading to a torrent of samples.
Cohen, David   +3 more
openaire   +1 more source

Detection of Moving Targets Based on Doppler Spectrum Analysis Technique for Passive Coherent Radar

open access: yesLeida xuebao, 2013
A novel method of moving targets detection taking Doppler spectrum analysis technique for Passive Coherent Radar (PCR) is provided. After dividing the receiving signals into segments as pulse series, it utilizes the technique of pulse compress and ...
Zhao Yao-dong   +3 more
doaj   +1 more source

Unambiguous range extension for pulse‐Doppler radar via Poisson disk sampling

open access: yesIET Radar, Sonar & Navigation, 2021
Since the maximum unambiguous range in the traditional single‐channel pulse‐Doppler (PD) radar is restricted by the pulse repetition interval (PRI), there is a trade‐off between the maximum unambiguous range and the maximum unambiguous velocity.
Boyuan Dong   +3 more
doaj   +1 more source

A Method to Suppress Interferences Based on Secondary Compensation with QPC-FDA-MIMO Radar

open access: yesRemote Sensing, 2023
The traditional phased array radar is unable to distinguish mainlobe deceptive interference from the true target when they share an identical angle. To address this issue, a method is developed to suppress the interference in the joint transmit–receive ...
Yiqun Zhang   +4 more
doaj   +1 more source

Doppler W-band polarization diversity space-borne radar simulator for wind studies [PDF]

open access: yes, 2018
CloudSat observations are used in combination with collocated European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis to simulate spaceborne W-band Doppler observations from slant-looking radars.
A. Battaglia   +3 more
core   +2 more sources

Doppler Spectrum Estimation by Ramanujan Fourier Transforms [PDF]

open access: yes, 2009
The Doppler spectrum estimation of a weather radar signal in a classic way can be made by two methods, temporal one based in the autocorrelation of the successful signals, whereas the other one uses the estimation of the power spectral density PSD by ...
Bensebti, Messaoud, Lagha, Mohand
core   +4 more sources

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