Results 21 to 30 of about 702,523 (224)

Clutter Suppression Algorithm with Joint Intrinsic Clutter Motion Errors Calibration and Off-Grid Effects Mitigation in Airborne Passive Radars

open access: yesApplied Sciences, 2023
In an airborne passive radar, multipath (MP) clutter, which is caused by MP signals contained in the contaminated reference signal, degrades the space-time adaptive processing (STAP) performance.
Yaqi Deng   +3 more
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

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

Robust Space–Time Joint Sparse Processing Method with Airborne Active Array for Severely Inhomogeneous Clutter Suppression

open access: yesRemote Sensing, 2022
Due to clutter inhomogeneity, the clutter suppression ability of space–time adaptive processing (STAP) is usually constrained by the insufficient number of independent and identically distributed (IID) clutter training samples and, as a result, is ...
Qiang Wang   +4 more
doaj   +1 more source

Study on Sea Clutter Suppression Methods based on a Realistic Radar Dataset

open access: yesRemote Sensing, 2019
To improve the ability of radar to detect targets such as ships with a background of strong sea clutter, different sea-clutter suppression algorithms are developed based on the realistic Intelligent PIxel processing X-band (IPIX) radar datasets, and ...
Mingjie Lv, Chen Zhou
doaj   +1 more source

Research on Multi-Domain Dimensionality Reduction Joint Adaptive Processing Method for Range Ambiguous Clutter of FDA-Phase-MIMO Space-Based Early Warning Radar

open access: yesRemote Sensing, 2022
The ground and sea clutter received by space-based early warning radar (SBEWR) has severely range ambiguous characteristics due to its platform location, and the non-stationary factor caused by Earth’s rotation makes the received clutter at different ...
Tianfu Zhang   +4 more
doaj   +1 more source

A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar

open access: yesLeida xuebao, 2018
The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading.
Wang Yuzhuo, Zhu Shengqi, Xu Jingwei
doaj   +1 more source

Robust knowledge-aided sparse recovery STAP method for non-homogeneity clutter suppression

open access: yesThe Journal of Engineering, 2019
Conventional space–time adaptive processing (STAP) methods would suffer severely performance loss in the complex clutter environment of an airborne-phased array radar, especially when the estimated clutter covariance matrix (CCM) is corrupted by the ...
Hao Peng   +3 more
doaj   +1 more source

Distribution Characteristics of Ground Echo Amplitude and Recognition of Signal Grazing Angle

open access: yesSensors, 2021
With the continuous advancement of electronic technology, terahertz technology has gradually been applied on radar. Since short wavelength causes severe ground clutter, this paper studies the amplitude distribution statistical characteristics of the ...
Guangwei Zhang   +3 more
doaj   +1 more source

Doppler polarimetric ground clutter identification and suppression for atmospheric radars based on co-polar correlation

open access: yesJournal of Telecommunications and Information Technology, 2001
A new clutter suppression technique that uses both Doppler and polarimetric information is presented. Polarimetric properties of the target and clutter are calculated per Doppler frequency cell and based on this information clutter suppression is ...
Dmitri Moisseev   +3 more
doaj   +1 more source

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