scholarly journals Sea surface clutter suppression method based on time-domain polarization characteristics of sun glint

2019 ◽  
Vol 27 (3) ◽  
pp. 2142
Author(s):  
Jian-An Liang ◽  
Xia Wang ◽  
Si He ◽  
Wei-Qi Jin
Keyword(s):  
Time Domain ◽  
Sea Surface ◽  
Clutter Suppression ◽  
Polarization Characteristics ◽  
Suppression Method

scholarly journals An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yingjie Yu ◽  
Yong Li
Keyword(s):  
Time Domain ◽  
Radar Data ◽  
Pulse Repetition ◽  
Estimation Accuracy ◽  
Doppler Velocity ◽  
Clutter Suppression ◽  
Multiple Pulse ◽  
Repetition Time ◽  
Suppression Method ◽  
Velocity Interval

This paper describes the implementation of an improved clutter suppression method for the multiple pulse repetition time (PRT) technique based on simulated radar data. The suppression method is constructed using maximum likelihood methodology in time domain and is called parametric time domain method (PTDM). The procedure relies on the assumption that precipitation and clutter signal spectra follow a Gaussian functional form. The multiple interleaved pulse repetition frequencies (PRFs) that are used in this work are set to four PRFs (952, 833, 667, and 513 Hz). Based on radar simulation, it is shown that the new method can provide accurate retrieval of Doppler velocity even in the case of strong clutter contamination. The obtained velocity is nearly unbiased for all the range of Nyquist velocity interval. Also, the performance of the method is illustrated on simulated radar data for plan position indicator (PPI) scan. Compared with staggered 2-PRT transmission schemes with PTDM, the proposed method presents better estimation accuracy under certain clutter situations.

A Novel Sea Clutter Suppression Method based on Neural Network

2021 ◽  
Author(s):  
Yifei Fan ◽  
Chenxiang Li ◽  
Dongtao Li ◽  
Jieshuang Li ◽  
Jia Su ◽  
...  
Keyword(s):  
Neural Network ◽  
Clutter Suppression ◽  
Sea Clutter ◽  
Suppression Method

A Heterogeneous Clutter Suppression Method based on Subarrays

2015 ◽  
Author(s):  
Ye Dong Ye Dong ◽  
Xiaodong Han Xiaodong Han ◽  
Rui Liu Rui Liu ◽  
Chenxiao Zhang Chenxiao Zhang
Keyword(s):  
Clutter Suppression ◽  
Suppression Method

An Improved Clutter Suppression Method for Non-Sidelooking Uniform Linear Array Antennas Airborne Radar

2013 ◽  
Vol 681 ◽  
pp. 175-180
Author(s):  
Jun Zhao ◽  
Xu Hang
Keyword(s):  
Linear Array ◽  
Compensation Method ◽  
Airborne Radar ◽  
Clutter Suppression ◽  
Uniform Linear Array ◽  
Array Antennas ◽  
Compensation Methods ◽  
Suppression Method ◽  
Simulation Results ◽  
Independent Identically Distributed

The clutter distribution of airborne radar with non-sidelooking uniform linear array antennas varies with ranges and samples in different range gates are not independent identically distributed vectors, so that the statistical STAP methods degrade greatly. In this paper, an improved clutter range dependence compensation method for airborne radar with uniform linear array is proposed. This method involves in a preprocessing with ADC method to align the mainlobe of clutter spectrum in different range gates and subsequently clutter suppression in other azimuths with EDBU technology. Simulation results show the proposed method can reduce the clutter spectrum dispersion significantly and outperform conventional local compensation methods.

Knowledge-Aided Ocean Clutter Suppression Method for Sky-Wave Over-the-Horizon Radar

2018 ◽  
Vol 15 (3) ◽  
pp. 355-358 ◽  
Author(s):  
Jinfeng Hu ◽  
Cao Jian ◽  
Chen Zhuo ◽  
Huiyong Li ◽  
Julan Xie
Keyword(s):  
Clutter Suppression ◽  
Suppression Method
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