Results 61 to 70 of about 2,464 (91)

A Method for Shipborne HFSWR Target Echo Motion Compensation Based on AIS

IEEE Transactions on Aerospace and Electronic Systems
Weifeng Sun, Weimin Huang, Yiming Wang
exaly   +2 more sources

Optimum weights of DPCA processing for shipborne HFSWR

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344), 2002
The displaced phase center antenna (DPCA) can be used to detect a ship in broadened first order Bragg lines due to platform motion in shipborne HFSWR (high frequency surface wave radar). In the paper it is shown that, by an analogy with the optimum weights of MTI (moving target indicator), the DPCA processing introduced by Xie et al.
null Junhao Xie, null Yeshu Yuan, null Yongtan Liu   +2 more
openaire   +1 more source

STAP process of shipborne HFSWR motion compensation

2012 IEEE 11th International Conference on Signal Processing, 2012
In this paper, analysis of the broadening effect of the first-order sea clutter in the HFSWR (High Frequeny Surface Waves Radar) radar system of moving shipborne platform is given. The platform is moving in six degrees of freedom (DOF) and the model of movement has been built.
Zhenyuan Ji, Zaiyang Duan, Junhao Xie, Yang Li   +3 more
openaire   +1 more source

Experimental analysis of sea clutter in shipborne HFSWR

IEE Proceedings - Radar, Sonar and Navigation, 2001
The spreading of the dominant first order Bragg lines in shipborne HFSWR (high-frequency surface wave radar) severely obscures targets with Doppler frequencies within the spreading domain. STAP (space-time adaptive processing) is one of the effective methods for solving the problem.
J. Xie, Y. Yuan, Y. Liu
openaire   +1 more source

Super-resolution processing for shipborne HFSWR based on an improved IMP

2016 CIE International Conference on Radar (RADAR), 2016
In this paper, Incremental Multi-Parameter (IMP) Algorithm, a kind of approximate maximum likelihood method which can realize super-resolution, is applied into shipborne HFSWR for angular resolution. In order to meet the need of single snapshot processing and practical application with IMP, an improved IMP algorithm is proposed, based on single ...
Baiqiang Zhang, Junhao Xie, Zhongwen Hao
openaire   +1 more source

Sliding Window SA-CNN-Based CFAR Detector for Extended Target in Shipborne HFSWR

International Journal of Remote Sensing
Yonggang Ji, Jihong Ren
exaly   +2 more sources

Suppression of sea clutter with orthogonal weighting for target detection in shipborne HFSWR

IEE Proceedings - Radar, Sonar and Navigation, 2002
It is difficult to detect a target submerged in the spread spectrum of the first-order sea clutter in shipborne HFSWR (high frequency surface wave radar). Based on the space-time distribution of the first-order sea clutter, a technique for the detection of a ship in the spread-clutter spectrum is presented, which can completely suppress interference ...
J. Xie, Y. Yuan, Y. Liu
openaire   +1 more source

Suppression of sea clutter with modified joint domain localized algorithm in shipborne HFSWR

2016 CIE International Conference on Radar (RADAR), 2016
The spread of the dominant first order Bragg lines in shipborne high frequency surface wave radar (HFSWR) severely obscures targets within the spreading domain. Joint domain localized (JDL) algorithm is one of reduced-dimension STAP methods to suppress the sea clutter.
Liang Guo, Qiang Yang, Weibo Deng
openaire   +1 more source

The first-order ocean surface cross section for shipborne HFSWR with rotation motion

2017 IEEE Radar Conference (RadarConf), 2017
To analyze the characteristics of ocean surface backscatter signals, the first-order high frequency (HF) radar ocean surface cross section is mathematically developed for the case of an omnidirectional transmitting/receiving antenna being installed on the shipborne platform with rotation motion.
Guowei Yao, Junhao Xie, Zhenyuan Ji, Minglei Sun   +3 more
openaire   +1 more source

Use of STAP techniques to enhance the detection of slow targets in shipborne HFSWR

2003 Proceedings of the International Conference on Radar (IEEE Cat. No.03EX695), 2004
This paper addresses the detection of low velocity targets from a shipborne HFSWR (high frequency surface waves radar). In a shipborne configuration, as a consequence of the ship motion, the first order of Bragg lines is spread in the useful Doppler interval where detections of a ship target are expected to appear.
openaire   +1 more source