Results 21 to 30 of about 93 (64)

Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP

International Journal of Antennas and Propagation, Volume 2013, Issue 1, 2013., 2013
High Frequency Surface Wave Radar (HFSWR) can perform the functions of ocean environment monitoring, target detection, and target tracking over the horizon. However, its system′s performance is always limited by the severe ionospheric clutter environment, especially by the nonhomogeneous component.
Xin Zhang, Qiang Yang, Weibo Deng, Ulrich Nickel   +3 more
wiley   +1 more source

Extraction of Significant Wave Height from Spreading First-Order Bragg Peaks of Shipborne High-Frequency Surface Wave Radar with a Single Antenna

Remote Sensing
Shipborne high-frequency surface wave radar (HFSWR) can extend the measurement area due to the flexible movement of the platform and provide a new way to monitor large-area marine environment parameters.
Xinbo Zhang, Junhao Xie, Guowei Yao, Chenghui Cao   +3 more
doaj   +1 more source

Research on Fast Deployment Algorithm for Ocean Environment Monitoring Based on Ship‐Borne High‐Frequency Surface Wave Radar

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
Our method introduces a minimum resource parameter model and leverages a grid search algorithm integrated with a dual‐base spatial coverage model to identify the optimal deployment configuration. The results demonstrate that our approach significantly reduces computational time while maintaining high coverage accuracy, making it suitable for real‐time ...
Mengxuan Ma, Xiaochuan Wu, Weibo Deng, Xin Zhang   +3 more
wiley   +1 more source

First order sea clutter cross section for bistatic shipborne HFSWR [PDF]

Journal of Systems Engineering and Electronics, 2017
This paper studies the development on the first order sea clutter cross section for bistatic high frequency surface wave radar (HFSWR). Based on the received first order electric field expression, a closed-form of cross sections is derived to account for the case of receiving antenna array being mounted on the shipborne platform.
openaire   +1 more source

Sea clutter suppression for shipborne HFSWR using joint sparse recovery‐based STAP

Electronics Letters, 2016
On the basis of the intrinsic sparsity of sea clutter in shipborne high‐frequency surface wave radar, a joint sparse recovery‐based space–time adaptive processing (STAP) technique is proposed to suppress the spread sea clutter. In the proposed method, the partial clutter subspace is first estimated with training samples from only one range cell ...
Yongpeng Zhu, Yinsheng Wei, Kaihui Zhu
openaire   +1 more source

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Analysis and Estimation of Shipborne HFSWR Target Parameters Under the Influence of Platform Motion

IEEE Transactions on Geoscience and Remote Sensing, 2021
For onshore high-frequency surface-wave radar (HFSWR), target parameter estimation focuses mainly on distance and velocity demodulation, then on azimuth determination. However, these parameters are difficult to solve accurately for shipborne HFSWR targets due to additional modulation on the echo signal introduced by the forward and six-degree-of ...
Ling Zhang, Jiong Niu, Yonggang Ji
exaly   +2 more sources

An Improved Oblique Projection Method for Sea Clutter Suppression in Shipborne HFSWR

IEEE Geoscience and Remote Sensing Letters, 2016
Sea clutter has a major impact on the detection performance of a shipborne high-frequency surface wave radar (HFSWR) system. Due to the platform motion of shipborne HFSWR, the Doppler spectrum of the first-order sea clutter suffers from some broadening so that the targets submerged in this broadening Doppler spectrum can be hardly detected.
Chunlei Yi, T Kirubarajan, Junhao Xie
exaly   +2 more sources

Simulation analysis of first order sea clutter spectrum for shipborne bistatic HFSWR

IET Conference Proceedings, 2021
Compared with onshore bistatic high frequency surface wave radar (BHFSWR) and shipborne monostatic HFSWR (MHFSWR), shipborne BHFSWR combines the common advantages of both. It is worth noting that the motion state of both mobile stations needs to be considered. In this paper, the spreading characteristics of first-order sea clutter and the doppler shift
J. Liu, Y. Ji, Y. Liu, J. Meng, Y. Wang, H. Zhang   +5 more
exaly   +2 more sources

Second-Order Ocean Surface Cross Section for Shipborne HFSWR

IEEE Antennas and Wireless Propagation Letters, 2015
To investigate the characteristics of sea clutter in monostatic shipborne high-frequency surface-wave radar (HFSWR) with uniform linear motion, the second-order patch scatter cross section is derived. With the previously proposed first-order ocean surface cross section, both cross sections could be reduced to the existing results in land-based HFSWR ...
Minglei Sun, Junhao Xie
exaly   +2 more sources

DOA Estimation Using Shipborne HFSWR Based on Virtual Synthetic Array

2022 41st Chinese Control Conference (CCC), 2022
Yang Bai, Hui Zhang, Mingzhu Zhou, Lei Yang   +3 more
exaly   +2 more sources