Results 191 to 200 of about 478 (223)

Suppression of Sea-ice Clutter Observed by a Millimeter Wave Radar

International Journal of Infrared and Millimeter Waves, 2007
Sea-ice clutter was measured using a millimeter wave radar (MWR) with a frequency of 34.86 GHz, the beamwidth of 0.25° and pulsewidth of 30 ns which is located at Mombetsu in Hokkaido, Japan. In this paper, targets are an iron tower and a breakwater which are embedded in sea-ice clutter.
S. I. Hwang, S. Ishii, S. Sayama, M. Sekine   +3 more
openaire   +1 more source

Suppression of Sea Clutter of Skywave Radar Based on AR Model

Applied Mechanics and Materials, 2012
The prediction of chaotic time sequence based on AR model is studied. The forming mechanism of the first-order Bragg lines of sea clutter is analyzed. According to the signal characteristic of sea clutter, a sea clutter time sequence predictor and a skywave radar sea clutter suppression system based on AR model are presented.
X H Zhang, W Sheng, S H Liu
openaire   +1 more source

Research on Sea Clutter Suppression Using Sparse Dictionary Learning

2019 IEEE 8th Joint International Information Technology and Artificial Intelligence Conference (ITAIC), 2019
Due to the interference of the strong sea clutter, it’s difficult to detect marine weak targets and clutter attenuation is the key to improve detection performance. A sea clutter suppression method based on sparse dictionary learning was proposed to attenuate sea clutter and thus enhance the detection performance.
Ziwei Dong, Jun Sun, Jingming Sun, Meiyan Pan   +3 more
openaire   +1 more source

Ionospheric Decontamination and Sea Clutter Suppression for HF Skywave Radars

IEEE Journal of Oceanic Engineering, 2005
In this paper, a cascaded correction and suppression method of reducing ionospheric phase path contamination and sea clutter to enable detection of targets travelling at speeds near the Bragg Doppler is addressed. The Hankel rank reduction (HRR) technique based on singular value decomposition (SVD) has been used to estimate the ionospheric phase ...
K. Lu, X. Liu, Y. Liu
openaire   +1 more source

A sea clutter suppression algorithm based on sparse representation

International Conference on Intelligent Systems, Communications, and Computer Networks (ISCCN 2022), 2022
Jingyi Yan, Yong Yu, Jianqi Zhang, Bin Zhang, Zheng Chen   +4 more
openaire   +1 more source

Suppression of sea clutter and detection of small ship observed by an S‐band Radar

Electronics and Communications in Japan, 2018
AbstractI have observed sea clutter including a target (small ship) using an S‐band radar with a frequency of 3.05 GHz, a beamwidth of 1.8°, a pulsewidth of 0.5 μs, and a pulse‐repetition frequency of 1600 Hz. To investigate the sea clutter amplitude statistics, I introduce the Akaike Information Criterion (AIC).
openaire   +1 more source

Infrared sea clutter suppression method based on gradient filtering

AOPC 2022: Optical Sensing, Imaging, and Display Technology, 2023
Haolong Tang, Dongming Lu, Liping Wang, Guohua Gu   +3 more
openaire   +1 more source

A Sea Clutter Suppression Algorithm for Over-the-Horizon Radar Based on Dictionary Learning and Subspace Estimation

Digital Signal Processing, 2023
Xiaoyan Ma, Weijian Liu, Zirui Chen
exaly  

Research on Spectrum Estimation and Suppression Methods for Sea Clutter

2024 IEEE International Conference on Real-time Computing and Robotics (RCAR)
Wei Wu, Yonghao Zheng, Dandan Liu, Bing Xue   +3 more
openaire   +1 more source

A FBLP Based Method for Suppressing Sea Clutter in HFSWR

IEICE Proceeding Series, 2013
Yongpeng, Zhu, Chao, Shang, Yajun, Li
openaire   +1 more source