Results 211 to 220 of about 416,263 (254)

High-resolution range profile reconstruction method for terahertz FMCW radar

Applied Optics, 2021
Terahertz (THz) testing, by the frequency modulated continuous wave (FMCW) system, is often hampered by the limited range resolution. Thus, in this paper, a software method is proposed to reconstruct the range profile, yielding significant improvements in range resolution and in signal parameter extraction.
Weidong Hu, Yade Li, Zhongde Han, Zhihao Xu, Yunzhang Zhao, Jiaqi Ni   +5 more
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On variability in high resolution range profiles

2013 International Conference on Radar, 2013
Radar target classification often uses feature sets derived from high range resolution profiles as an input to a classifier. However, rage profiles typically exhibit variability that is subsequently passed on to the feature vectors used in classification.
S.H. Doo, G.E. Smith, C.J. Baker
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Scatterer stability in high range resolution profiles

2013 IEEE Radar Conference (RadarCon13), 2013
Radar target classification typically uses feature sets derived from high range resolution profiles as an input to a classifier. However, such feature sets, when projected in feature space, show both substantial overlap for different targets and substantial variability for a single target. This results in degraded classification performance, as targets
S.H. Doo, G.E. Smith, C.J. Baker
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Polarization identification of high resolution range profiles

Proceedings of the IEEE 1995 National Aerospace and Electronics Conference. NAECON 1995, 2002
In this paper, a novel effective polarization identification method is presented for vehicle sized ground target identification application. The method uses wide band FMCW orthogonal duel-polarization technology to obtain the degraded PSM of each scattering center in high resolution range profile.
null He Songhua, null Zhang Hui, null Hu Bo   +2 more
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A method of range measurement based on high resolution range profile

2017 11th European Conference on Antennas and Propagation (EUCAP), 2017
In conventional methods, the weighted mean range of the scattering centers on the high resolution range proflle(HRRP) is assumed as the range between the target center and radar. However, this assumption is not reasonable because the scattering center with the maximum amplitude may not locate at the center of the target.
Xiaoliang Yang, Fen Ye, Gongjian Wen, BaiYuan Ding, Yi Ge   +4 more
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The Range Alignment Algorithm for High-Resolution Range Profile Based on Image Segmentation

2016 International Conference on Identification, Information and Knowledge in the Internet of Things (IIKI), 2016
Aiming at the problem of the difficulty in the range alignment of HRRP because of more than one target in the window of radar image, this paper propose a alignment method for multiple targets in the target group by using an image segmentation method. First, we accumulate the HRRP of the target, and get the HRRP process diagram.
Jing Sheng, Hongmei Ren
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The range alignment algorithm for high-resolution range profile of multiple target

2016 11th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 2016
Aiming at the problem of the difficulty in the range alignment of HRRP because of more than one target in the window of radar image, this paper propose a alignment method for multiple targets in the target group by using an image segmentation method. First, we accumulate the HRRP of the target, and get the HRRP process diagram.
Sheng Jing, Ren Hong-mei
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Bistatic high-range resolution profiles of wobbling targets

IET International Radar Conference 2015, 2015
This study considers how to utilize the high range resolution profiles (HRRPs) of wobbling targets for feature extraction. The movement model of wobbling targets and the bistatic HRRP model are introduced firstly. Based on the bistatic HRRPs of the wobbling target simulated via the bistatic scattering coefficients obtained via electromagnetic ...
Ai Xiaofeng Ai Xiaofeng, Wang Liandong Wang Liandong, Wang Manxi Wang Manxi, Zeng Yonghu Zeng Yonghu   +3 more
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Properties of high-resolution range profiles

Optical Engineering, 2002
Wideband radar can obtain much target information due to its high-range resolution. Because its size is smaller than the resolution of conventional radar, for an airplane, it can be regarded as a point. However, for wideband radar with a bandwidth of several hundred megahertz, the range resolution is less than a meter, and airplane echoes of one ...
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RADAR TARGET RECOGNITION BASED ON PARAMETERIZED HIGH RESOLUTION RANGE PROFILES

International Journal of Pattern Recognition and Artificial Intelligence, 2000
A new scheme of radar target recognition based on parameterized high resolution range profiles (PHRRP) is presented in this paper. A novel criterion called generalized-weighted-normalized correlation (GWNC) is proposed for measuring the similarity between PHRRP's.
Xuejun Liao, Zheng Bao 0001
openaire   +1 more source