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| 1 | Multi-component LFM signal detection and parameter estimation based on Radon-HHT显示文摘A new method is proposed to analyze multi-component linear frequency modulated (LFM) signals, which eliminates cross terms in conventional Wigner-Ville distribution (WVD).The approach is based on Radon transform and Hilbert-Huang transform (HHT),which is a recently developed method adaptive to non-linear and non-stationary signals.The complicated signal is decomposed into several intrinsic mode functions (IMF) by the empirical mode decomposition (EMD),which makes the consequent instantaneous frequency meaningful.After the instantaneous frequency and Hilbert spectrum are computed,multi-component LFM signals detection and parameter estimation are obtained using Radon transform on the Hilbert spectrum plane.The simulation results show its feasibility and effectiveness. | Chen Wenwu Chen Rushan | 2008 | Journal of Systems Engineering and Electronics2008，19，6： | 9 |
| 2 | Optimizing polyphase sequences for orthogonal netted radar systems显示文摘Orthogonal netted radar systems (ONRS) can fundamentally improve the radar performance by using a group of specially designed orthogonal polyphase code signals which require a very low aperiodic autocorrelation peak sidelobe level, low aperiodic cross-correlation, and a good resilience to small Doppler shifts. However, the existing numerical solutions degrade severely in the presence of small Doppler shifts. A new set of polyphase sequences is presented with good correlation properties as well as resilience to Doppler shifts. These sequences are built by using numerical optimization based on correlation properties as well as the Doppler effects on matched filter outputs, which maintains the Doppler tolerance. The statistical simulated annealing algorithm and the greedy code search method are used to optimize the sequences. Correlation and Doppler results are compared with the best-known sequences and show to be superior. | Wenwu Chen Zhengyu Cai Rushan Chen Zhao Zhao | 2012 | Journal of Systems Engineering and Electronics2012，23，4： | 4 |
| 3 | A novel hierarchical two-level spectral preconditioning technique for multilevel fast muhipole analysis of elec- tromagnetic wave scattering显示文摘 | Ding Dazhi Chen Rushan Fan Zhenhong | 2008 | IEEE Transactions on Antennas and Propagation2008，56，4： | 1 |
| 4 | FDTD Analysis of EW Wave Circulating by a Magnetized Ferrite Body in Free Space显示文摘 | Rushan Chen Edward K. N. Yung Zeming Xie Yong Wang | 1998 | International Journal of Infrared and Millimeter Waves1998，，2： | 1 |
| 5 | An efficient surface integral equation solution to EM scattering by chiral objects above a lossy half space显示文摘 | CHEN Rushan HU Yanqin FAN Zhenghong | 2009 | IEEE Trans on Antennas Propag2009，57，11： | 1 |
| 6 | Iterative estimators of parameters in a linear model with partially variant coefficients显示文摘 | HU SHAOLIN KARL MEINKE CHEN RUSHAN | 2007 | International Journal of Applied Mathematics and Computer Science2007，17，2： | 1 |
| 7 | Formation Mechanism of Agglomeration Caused by Burning NSSC Black Liquor in a Fluidized Bed Incinerator 显示文摘 | Rushan Bie Ying Zhao Zhigang Chen | 2009 | Energy and Fuel2009，23，： | 1 |
| 8 | A multiresolution curvilinear rao-wilton-glisson basis function for fast analysis of electromagnetic scattering显示文摘 | Chen Rushan Ding Jianjun Ding D Z Fan Z H Wang Daoxiang | | 0，，10： | 1 |
| 9 | Dynamic Localization in Mesoscopic Metallic Rings 显示文摘 | Chen Bin Dai Xi Han Rushan | 2002 | Phys Lett A2002，3021，： | 1 |
| 10 | Improved multilevel physical optics algorithm for fast computation of monostatic radar cross section 显示文摘 | Yuyuan An Daoxiang Wang Rushan Chen | 2014 | IET Microwaves Antennas & Propagation2014，8，2： | 1 |
| 11 | Vector-FEM Analysis of Millimeter Wave Circulator with SOC Truncation Technique显示文摘 | Chen Rushan Yung Edward K N Zhu Lei | 2001 | Intemational Journal of InfTared and Millimeter Waves2001，22，1： | 1 |
| 12 | Vector-FEM Analysis of Millimeter Wave Circulator with SOC Truncation Technique显示文摘 | Chen Rushan Yung Edward K N Zhu Lei etal | 2001 | International Journal of Infrared and Millimeter Waves2001，22，1： | 1 |
| 13 | PAPR Reduction of an OFDM Signal by Use of PTS with Low Computational Complexity显示文摘 | Yang Lin Chen Rushan Siu Yunming | 2006 | IEEE Transactions on Broadcasting2006，52，1： | 1 |
| 14 | Acquisition aperture correction in angle-domain and true-amplitude imaging for wave equation migration显示文摘 | Wu Rushan Luo Mingqiu Chen Shengchang | 2004 | Expanded Abstracts of 74th Annual International SEG Meeting2004，937，940： | 1 |
| 15 | Review on developments of novel specialty fibers: performance, application and process显示文摘这篇论文考察光纤维,生产和特长的申请的发展进步在世界上的光纤维。最后,它说世界的光纤维的领先的技术。特长光纤维是能满足特殊要求的光纤维的系列。最近,到家(FTTH ) 的从纤维的很快成长的需要,传感器,活跃光连接,精力变换和交货和纤维激光吸引研究人员和光公司探索光纤维为努力被发明的光纤维和某新奇特长的更多的可能性。有极端 3 公里弯曲直径的能力的弯曲感觉迟钝的光纤维使在一些极其紧缩的设备把光纤维用作电线可能。更高的力量与稀土元素的发展在纤维激光领域里被完成做的纤维。象 Au 粒子和 ZnO nanostructures 那样的 Nanomaterials 被利用在传感器和精力变换中扩大申请。纯硅石设计被商品化基于纤维光学改进传感器的放射抵抗。 | Qi MO Cheng DU Wei CHEN Yili KE Tao ZHANG Rushan CHEN | 2014 | Frontiers of Optoelectronics2014，7，3： | 0 |
| 16 | Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy显示文摘The cervix is a collagen-rich connective tissue that must remain closed during pregnancy while undergoing progressive remodeling in preparation for delivery,which begins before the onset of the preterm labor process.Therefore,it is important to resolve the changes of collagen flbers during cervical remodeling for the prevention of preterm labor.Herein,we assessed the spatial organization of collagen flbers in a three-dimensional(3D)context within cervical tissues of mice on day 3,9,12,15 and 18 of gestation.We found that the 3D directional variance,a novel metric of alignment,was higher on day 9 than that on day 3 and then gradually decreased from day 9 to day 18.Compared with two-dimensional(2D)approach,a higher sensitivity was achieved from 3D analysis,highlighting the importance of truly 3D quantification.Moreover,the depthdependent variation of 3D directional variance was investigated.By combining multiple 3D directional variance-derived metrics,a high level of classification accuracy was acquired in distinguishing different periods of pregnancy.These results demonstrate that 3D directional variance is sensitive to remodeling of collagen fibers within cervical tissues,shedding new light on highly-sensitive,early detection of preterm birth(PTB). | Lingxi Zhou Rushan Jiang Jia Meng Shuhao Qian Shenyi Jiang Chuncheng Wang Chen Yang Zhihua Ding Zheyue Shu Zhiyi Liu | 2023 | Journal of Innovative Optical Health Sciences2023，16，4： | 0 |
| 17 | Nano⁃Silica Production by Rice Husk Combustion in a 0.7 MW Double⁃Circulating Fluidized Bed after Acid Pretreatment显示文摘Rice husk is an organic silicon source for amorphous nano⁃silica particles.This paper reports the experimental study on the industrial production of nano⁃silica by rice husk combustion in a specially⁃designed 0.7 MW double⁃circulating fluidized bed(DCFB)based on acid pretreatment process.The physicochemical properties of RHA were characterized by various testing instruments.Results showed that acid pretreatment removed a large amount of metal impurities in the rice husk and thus inhibited the formation of crystalline silica or the agglomeration during the fluidized bed combustion process.The combustion efficiencies were as high as 99.5%.The obtained RHA comprised white fine particles and exhibited an amorphous structure,but factors such as collection point and acid type had certain influences on the quality of RHA.The highest SiO2 purity was greater than 98.6 wt.%,the lowest content of unburned carbon was 0.2 wt.%,the specific surface area reached 178 m2/g,and the pore size reached 5 nm.The circulating fluidized bed combustion of rice husk based on acid pretreatment can prepare nano⁃silica while providing heat for industrial processes,which is a highly energy⁃rich process. | Pei Chen Rushan Bie | 2020 | Journal of Harbin Institute of Technology(New Series)2020，27，4： | 0 |
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