Results 71 to 80 of about 1,748 (212)

De-Noising of HRRP Using EMD for Improvement of Target Identification Performance [PDF]

, 2017
본 논문에서는 레이다 표적식별 성능을 향상시키기 위하여 고해상도 거리측면도(High Resolution Range Profile: HRRP) 에 포함된 잡음을 효과적으로 제거하는 방법을 제안한다. 제안된 기법은 HRRP에 포함된 잡음의 통계적인 특성과 EMD (Empirical Mode Decomposition) 알고리즘을 이용하여 HRRP에 포함된 잡음을 효과적으로 제거한다.
SEUNG, JAE LEE, 박준용, 양은정, 김경태   +3 more
core   +1 more source

Readmission Rates for Chronic Obstructive Pulmonary Disease Under the Hospital Readmissions Reduction Program: an Interrupted Time Series Analysis [PDF]

, 2020
BackgroundHospital readmission rates decreased for myocardial infarction (AMI), heart failure (CHF), and pneumonia with implementation of the first phase of the Hospital Readmissions Reduction Program (HRRP).
Dubinett, Steven M, Buhr, Russell G, Ong, Michael K, Jackson, Nicholas J, Kominski, Gerald F, Mangione, Carol M   +5 more
core   +1 more source

Geometrical Structure Classification of Target HRRP Scattering Centers Based on Dual Polarimetric $H/\alpha$ Features

IEEE Access, 2019
Polarimetric high resolution range profile (HRRP) contains the geometrical structural information along radar line-of-sight and has shown great potentials in target recognition. In existing researches, H/α decomposition has been applied to exploit
Teng Long, Liang Zhang, Yang Li, Yanhua Wang   +3 more
doaj   +1 more source

Hospitals serving high concentrations of patients with dementia are associated with lower mortality rates for patients with dementia

Alzheimer's &Dementia: Behavior &Socioeconomics of Aging, Volume 1, Issue 1, March 2025.
Abstract INTRODUCTION While hospital‐related spending is substantially higher for ADRD populations, it is unknown whether differences exist in the use of hospital services in those hospitals serving high proportions of patients with dementia. METHODS We used 2014–2019 Medicare claims to compare hospitals treating high (321 high dementia concentration ...
Geoffrey J. Hoffman, Ketlyne Sol, Thuy Nguyen   +2 more
wiley   +1 more source

Velocity estimation and compensation approach for SFW radar visa IGSS

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper introduces a pioneering velocity estimation technique utilizing the fractional Fourier transform (FrFT) to address these limitations. Leveraging the characteristic of the Doppler signal from a moving target, which manifests as a chirp signal with a rate proportional to the target's velocity, the FrFT is utilized for precise velocity ...
Bo Peng, Caixia Qiao, Qile Chen
wiley   +1 more source

A Novel Radar HRRP Recognition Method with Accelerated T-Distributed Stochastic Neighbor Embedding and Density-Based Clustering [PDF]

, 2019
High-resolution range profile (HRRP) has attracted intensive attention from radar community because it is easy to acquire and analyze. However, most of the conventional algorithms require the prior information of targets, and they cannot process a large ...
Dahai Dai, Xuesong Wang, Hao Wu
core   +1 more source

Efficient Signal Processing for Frequency‐Agile Radar With Limited Computational Resources

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This letter designs the transmitted waveform for frequency‐agile radar to transform the velocity‐related phase into a linear phase and, based on this, proposes a fast high‐resolution range profile generation method for frequency‐agile radar that does not require velocity compensation.
Zexi Wei, Dinghong Lu, Zhe Cao
wiley   +1 more source

Radar High-Resolution Range Profile Rejection Based on Deep Multi-Modal Support Vector Data Description

Remote Sensing
Radar Automatic Target Recognition (RATR) based on high-resolution range profile (HRRP) has received intensive attention in recent years. In practice, RATR usually needs not only to recognize in-library samples but also to reject out-of-library samples ...
Yue Dong, Penghui Wang, Ming Fang, Yifan Guo, Lili Cao, Junkun Yan, Hongwei Liu   +6 more
doaj   +1 more source

Fusion of HRRP Time‐Frequency Analysis and Multi‐Scale Features for Convolutional Neural Network‐Based Target Recognition

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
This paper proposes an improved radar HRRP target recognition method by leveraging a modified Short‐Time Fourier Transform (STFT) module and a Convolutional Neural Network (CNN). The method incorporates multi‐scale analysis and differential processing to enhance feature extraction, demonstrating superior robustness and accuracy across varying signal‐to‐
Xiaohui Wei, Zhulin Zong
wiley   +1 more source

Scattering Mechanism Identification Based on Polarimetric HRRP of Manmade Target [PDF]

, 2016
In this paper, we analyze the space polarization and frequency dispersion characteristics of the polarimetric High Resolution Range Profile (HRRP) of manmade targets.
Chen Yongguang, Wang Xuesong, Wu Jiani, Pang Bo, Dai Dahai   +4 more
core   +1 more source