Results 11 to 20 of about 444 (225)

Blind Sea Clutter Suppression for Spaceborne GNSS-R Target Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
It has been demonstrated that delay-Doppler (DD) maps (DDMs) retrieved from spaceborne Global Navigation Satellite Systems Reflectometry missions contain sea clutter and also potential sea targets. Examples of sea targets include sea ice, oil rigs, and oil slicks.
Benjamin Southwell   +2 more
exaly   +3 more sources

Target detection in high-resolution sea clutter via block-adaptive clutter suppression

open access: yesIET Radar, Sonar and Navigation, 2011
Attentions have been focused on the moving target detection in a high-resolution sea clutter. This study commences with a proposal of median-based estimator to estimate the power spectrum of high-resolution sea clutter by the time series observed in adjacent range cells and time intervals.
P -L Shui
exaly   +2 more sources

Amplitude Suppression of Nongaussian Sea Clutter in a Coherent Bandpass Path of the Receiver

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2016
The method of non-linear amplitude suppression of radar clutter from a sea surface in the coherent band path of the receiver is considered. The model of the most adequate nongaussian radar clutter from the rough sea surface which envelope is based on K ...
E. A. Milashchenko, A. A. Yazovsky
doaj   +2 more sources

Low Observable Radar Target Detection Method within Sea Clutter Based on Correlation Estimation

open access: yesRemote Sensing, 2022
The long-time coherent integration can effectively improve the detection ability of radar targets. However, this strategy usually shows poor effect in resisting the sea clutter, which produces difficulties for accurate estimation of sea clutter ...
Zefeng Luo   +4 more
doaj   +1 more source

A Knowledge-Based Auxiliary Channel STAP for Target Detection in Shipborne HFSWR

open access: yesRemote Sensing, 2021
The broadened first-order sea clutter in shipborne high frequency surface wave radar (HFSWR), which will mask the targets with low radial velocity, is a kind of classical space–time coupled clutter.
Liang Guo   +5 more
doaj   +1 more source

Infrared Small Marine Target Detection Based on Spatiotemporal Dynamics Analysis

open access: yesRemote Sensing, 2023
It is a big challenge to detect and track small infrared marine targets in non-stationary and time-varying sea clutter because the signal is too strong to be estimated.
Chujia Dang   +3 more
doaj   +1 more source

The Application of JDL to Suppress Sea Clutter for Shipborne HFSWR [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper deals with the problem of sea clutter suppression for shipborne high frequency surface wave radar (HFSWR) based on the joint domain localized (JDL) adaptive processing algorithm. The performance of the novel method is compared with 2D FFT plus digital beamforming (FFT-DBF) and orthogonal weight in different azimuths.
Zhenyuan Ji   +3 more
openaire   +2 more sources

Bistatic Sea Clutter Suppression Method Based on Compressed Sensing Optimization

open access: yesApplied Sciences, 2023
In order to reduce the sea clutter interference in the detection of sea surface targets, we propose a bistatic sea clutter suppression method based on compressed sensing optimization in this paper. The proposed method mitigates the interference effect by
Zhangyou Peng, Jingang Liu
doaj   +1 more source

A Self-Regulating Multi-Clutter Suppression Framework for Small Aperture HFSWR Systems

open access: yesRemote Sensing, 2022
The problem that this paper is concerned with is High Frequency Surface Wave Radar (HFSWR) detection of desired targets against a complex interference background consisting of sea clutter, ionosphere clutter, Radio Frequency Interference (RFI) and ...
Xiaowei Ji, Qiang Yang, Linwei Wang
doaj   +1 more source

Intelligent Suppression Method for Ionospheric Clutter Based on Clustering and Greedy Strategy

open access: yesLeida xuebao, 2020
Clutter is a term used for unwanted echoes in electronic systems, particularly in reference to radars. Such echoes are typically returned from ground, sea, rain, animals/insects, chaff, and atmospheric turbulences, and can cause serious performance ...
Yinsheng WEI, Jianyu ZHOU, Rongqing XU
doaj   +1 more source

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