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Research on Prony’s method modeling in multi-target detection of stepped-frequency radar

Hu Tiling,Li Xingguo

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 67-71

Abstract:

Stepped-frequency signal is a broad band signal which enhances range resolution of radar at the cost of increasing bandwidth. Baseband signal that is received in stepped-frequency radar can be thought of as the linear combination of exponential function which contains target information, while Prony algorithm is a mathematical mode which uses a linear combination of exponential function to describe equal space between sampling data. Extended Prony algorithm is applied to stepped-frequency radar, which can obtain more exact target information and overcome the shortcomings of using IDFT to synthesize high resolution range profiles. Corresponding modeling analysis and experiment simulation explain the advantages of Prony's method.

Keywords： high resolution radar     stepped-frequency signal     extended Prony’s method     multi-scattering center    

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subsets determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Frontiers of Medicine doi: 10.1007/s11684-023-1029-3

Abstract: subsets determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Keywords： tumor prognosis molecular     Microbiome subsets determine     center analysis microbiome     transcriptome data    

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Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 651-658 doi: 10.1007/s11684-021-0859-0

Abstract: To present the clinical characteristics and the misdiagnosis rate of acute coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study in the cardiology and otorhinolaryngology departments. Records of patients with primary complaint of throat discomfort, absence of chest pain at onset, and an ultimate diagnosis of acute coronary syndrome, as well as patients with pharyngitis (as controls) were collected from May 2015 to April 2016. The patients’ main manifestations were compared. Logistic regression results showed that chest tightness, dyspnea, perspiring, and exertional throat symptoms were significantly associated with acute coronary syndrome, with odds ratios of 8.3 (95% CI 2.2−31.5), 10.9 (95% CI 1.8−66.9), 25.4 (95% CI 3.6−179.9), and 81.2 (95% CI 13.0−506.7). A total of 25 (56.82%) out of 44 acute coronary syndrome patients, who were first admitted to the otorhinolaryngology department, were misdiagnosed, with a 12% (3/25) mortality rate. Throat discomfort can be the principal manifestation of acute coronary syndrome. Such patients exhibit high misdiagnosis and mortality rates. Exertional throat symptoms, chest tightness, perspiring, and dyspnea were important indicators of acute coronary syndrome in patients whose main complaint was throat discomfort. The awareness of this condition will result in prompt diagnosis and reduce morbidity and mortality.

Keywords： acute coronary syndrome (ACS)     throat discomfort (TD)     throat pain     cardiology departments     non-cardiologic physicians    

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Clinical characteristics and risk factors of COVID-19 patients with chronic hepatitis B: a multi-center

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 111-125 doi: 10.1007/s11684-021-0854-5

Abstract: In this multi-center, retrospective, and observational cohort study, 109 CHB and 327 non-CHB patients

Keywords： COVID-19     chronic hepatitis B     liver injury     coagulation dysfunction    

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Radiative properties of materials with surface scattering or volume scattering: A review

Qunzhi ZHU, Hyunjin LEE, Zhuomin M. HANG

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 60-79 doi: 10.1007/s11708-009-0011-3

Abstract: In this paper, recent research on scattering of thermal radiation by rough surfaces, fibrous insulationRigorous solutions and approximation methods for surface scattering and volume scattering are described

Keywords： aerogel     fiber     particle scattering     radiative properties     soot     surface roughness    

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Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Frontiers in Energy doi: 10.1007/s11708-023-0912-6

Abstract: With the promotion of “dual carbon” strategy, data center (DC) access to high-penetration renewable energyIn this paper, a multi-timescale optimal scheduling model is established for interconnected data centersaims at the lowest power fluctuation, eliminating the impact of prediction errors through coordinated multi-timescale

Keywords： model predictive control     interconnected data center     multi-timescale     optimized scheduling     distributed    

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Multi-functional 3D N-doped TiO

Zijian Cui, Kaiyue Zhang, Guangyu Xing, Yaqing Feng, Shuxian Meng

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 395-404 doi: 10.1007/s11705-017-1643-1

Abstract: single-step solvothermal method and the sample treated for 15 h (hereafter called TMF) was then used as scatteringphotoanode films with different internal structures were fabricated by printing different numbers of TMF scattering

Keywords： DSSCs     N doping     scattering layer     electron lifetime    

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Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 169-177 doi: 10.1007/s11708-018-0527-5

Abstract: Most of the existing studies have neglected particle scattering by assuming that the size of nanoparticlesuspension is much smaller than the wavelength of solar radiation (i.e., Rayleigh scattering is applicableTherefore, for the DASC utilizing a plasmonic nanofluid supporting the LSP, light scattering from metallicThe present study investigates the scattering effect on the thermal performance of the DASC employingIt is found that the light scattering can improve the collector performance if the scattering coefficient

Keywords： direct absorption solar collector     plasmonic nanofluid     light scattering    

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Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1261-x

Abstract: Abstract • Dual-reaction-center (DRC) system breaks through bottleneck of Fenton reaction. • Utilizationfocusing on studying a novel heterogeneous Fenton catalytic process, and we developed the dual-reaction-center

Keywords： Dual reaction centers     Fenton     Pollutant utilization     Electron transfer    

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Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 403-411 doi: 10.1007/s11465-016-0405-y

Abstract: To study the performance of air bearing center cross gap, finite element models (FEMs) were establishedair supply pressure, and gap parameters on the overturning moment and bearing capacity of air bearing center

Keywords： neutron stress spectrometer     sample table     support system     air bearing     center cross gap     simulation     experiment    

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Study of Scattering Characteristic of Fire Smoke Based on Mie Theory

Shu Xueming,Fang Jun,Shao Quan,Yuan Hongyong

Strategic Study of CAE 2005, Volume 7, Issue 1,   Pages 45-49

Abstract:

The scattering characteristic of fire smoke is a major aspect in fire smoke detection foundamentalBased on Mie scattering theory, the paper presented some research on comparison between different algorithmsAn improved algorithm was adopted to calculate the scattering intensity and its distribution in all directionsIt can be concluded that the relative ratio of scattering intensity is an important parameter for certain

Keywords： fire smoke     Mie scattering     algorithm     relative ratio of scattering intensity    

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Design and modeling of continuum robot based on virtual-center of motion mechanism

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0739-6

Abstract: It has multi-degree of freedom and high compliance, which give it significant advantages when travelingThe flexural virtual-center of motion (VCM) mechanism can be machined integrally, and this way eliminates

Keywords： VCM mechanism     continuum robot     flexural joint     pseudo-rigid body model     cable-driven    

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A Discussion and Study on the Center Shift Phenomena of a Building Fire-whirl

Chen Changkun,Yao Bin,Fan Weicheng

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 63-68

Abstract: the behavior of building fire-whirl is studied, and an analytical method to describe and express the centersuch method, the large eddy simulation (LES) technology is employed for numerical simulation of the centerparameters such as average angular velocity, peak of temperature, location of the high-temperature center

Keywords： fire-whirl     center shift     large eddy simulation     building    

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De-scattering and edge-enhancement algorithms for underwater image restoration Research Papers

Pan-wang PAN, Fei YUAN, En CHENG

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 6,   Pages 862-871 doi: 10.1631/FITEE.1700744

Abstract: Restoration can be divided into two stages: de-scattering and edge enhancement.First, we introduce a multi-scale iterative framework for underwater image de-scattering, where a convolutional

Keywords： Image de-scattering     Edge enhancement     Convolutional neural network     Non-subsampled contourlet transform    

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Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 26-43 doi: 10.1007/s11709-017-0439-1

Abstract: The construction of the Shanghai Center involved excavations in excess of 33-m-deep using the top-down

Keywords： deep excavation     foundation pit     soft clay     top-down method     field observation     ground surface movements     ground deformations    

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Title Author Date Type Operation

Research on Prony’s method modeling in multi-target detection of stepped-frequency radar

Hu Tiling,Li Xingguo

Journal Article

subsets determine tumor prognosis and molecular characteristics of clear-cell renal cell carcinoma: a multi-center

Journal Article

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

Journal Article

Clinical characteristics and risk factors of COVID-19 patients with chronic hepatitis B: a multi-center

Journal Article

Radiative properties of materials with surface scattering or volume scattering: A review

Qunzhi ZHU, Hyunjin LEE, Zhuomin M. HANG

Journal Article

Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Journal Article

Multi-functional 3D N-doped TiO

Zijian Cui, Kaiyue Zhang, Guangyu Xing, Yaqing Feng, Shuxian Meng

Journal Article

Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Journal Article

Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Journal Article

Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Journal Article

Study of Scattering Characteristic of Fire Smoke Based on Mie Theory

Shu Xueming,Fang Jun,Shao Quan,Yuan Hongyong

Journal Article

Design and modeling of continuum robot based on virtual-center of motion mechanism

Journal Article

A Discussion and Study on the Center Shift Phenomena of a Building Fire-whirl

Chen Changkun,Yao Bin,Fan Weicheng

Journal Article

De-scattering and edge-enhancement algorithms for underwater image restoration

Pan-wang PAN, Fei YUAN, En CHENG

Journal Article

Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Journal Article