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| 1 | Image edge detection based on beamlet transform显示文摘Combining beamlet transform with steerable filters, a new edge detection method based on line gradient is proposed. Compared with operators based on point local properties, the edge-detection results with this method achieve higher SNR and position accuracy, and are quite helpful for image registration, object identification, etc. Some edgedetection experiments on optical and SAR images that demonstrate the significant improvement over classical edge operators are also presented. Moreover, the template matching result based on edge information of optical reference image and SAR image also proves the validity of this method. | Li Jing Huang Peikang Wang Xiaohu Pan Xudong | 2009 | Journal of Systems Engineering and Electronics2009，20，1： | 10 |
| 2 | Equivalent Currents on an Anisotropic MaterialBacked by a Metal Surface and Their Relation显示文摘Based on a first-order state-vector differential equation representation of Maxwell’s equations, an analytical formulation is derived for the equivalent currents on an anisotropic material backed by a metal surface, and the relation between two currents is also considered. These expressions are degenerated into the common forms for some simple cases. This effort will provide the theoretical preparation for the approximate calculation of electromagnetic scattering from a conducting object coated by an anisotropic material. | Huang Peikang Yin Hongcheng | 2000 | Journal of Systems Engineering and Electronics2000，11，4： | 10 |
| 3 | Boost-Phase ballistic missile trajectory estimation with ground based radar显示文摘A conditional boost-phase trajectory estimation method based on ballistic missile (BM) information database and classification is developed to estimate and predict boos-phase BM trajectory. The main uncertain factors to describe BM dynamics equation are reduced to the control law of trajectory pitch angle in boost-phase. After the BM mass at the beginning of estimation, the BM attack angle and the modification of engine thrust denoting BM acceleration are modeled reasonably, the boost-phase BM trajectory estimation with ground based radar is well realized. The validity of this estimation method is testified by computer simulation with a typical example. | Tang Yuyan Huang Peikang | 2006 | Journal of Systems Engineering and Electronics2006，17，4： | 9 |
| 4 | Solution for polarimetric radar cross section measurement and calibration显示文摘The exact radar cross-section(RCS) measurement is difficult when the scattering of targets is low. Full polarimetric calibration is one technique that offers the potential for improving the accuracy of RCS measurements. There are numerous polarimetric calibration algorithms. Some complex expressions in these algorithms cannot be easily used in an engineering practice. A radar polarimetric coefficients matrix(RPCM) with a simpler expression is presented for the monostatic radar polarization scattering matrix(PSM) measurement. Using a rhombic dihedral corner reflector and a metallic sphere, the RPCM can be obtained by solving a set of equations, which can be used to find the true PSM for any target. An example for the PSM of a metallic dish shows that the proposed method obviously improves the accuracy of crosspolarized RCS measurements. | Peikang Huang Chao Ning Xiaojian Xu Hua Yan Zhaoguo Hou | 2014 | Journal of Systems Engineering and Electronics2014，25，2： | 7 |
| 5 | Preliminary Discussion on the Relationship Between EM Wave Propagation Characteristics and Medium Parameters in Anisotropic Medium显示文摘The reflection and transmission characteristics of an anisotropic half-space medium normally illuminated by aplane wave are analyzed by kDB coordination. The general formula of reflection coefficient at the air-medium interface isgiven, and its validity is also discussed. The possible propagating modes in different mediums and the effect of medium pa-rameters on these modes are emphatically studied. This work provides the theoretical preparations for the parameter recon-struction of an anisotropic material. | Guo Huiping & Liu Xueguan Dept. of Communication and Electronics, Suzhou University, Suzhou 215021, P. R. ChinaYin Hongcheng & Huang Peikang National Electromagnetic Scattering Laboratory, Beijing 100854, P. R. China | 2002 | Journal of Systems Engineering and Electronics2002，13，4： | 6 |
| 6 | Velocity compensation methods for LPRF modulated frequency stepped-frequency(MFSF) radar显示文摘In the high speed target environment,there exists serious Doppler effect in the low pulse repetition frequency(LPRF) modulated frequency stepped frequency(MFSF) radar signal.The velocity range of the target is large and the velocity is high ambiguous,so the single method is difficult to satisfy the velocity measurement requirement.For this problem,a novel method is presented,it is a combination of cross-correlation inner frame velocity measurement and range-Doppler coupling velocity measurement.The cross-correlation inner frame method,overcoming the low Doppler tolerance of the cross-correlation between frames,can obtain the coarse velocity of the high speed target,and then the precision velocity can be obtained with the range-Doppler coupling method.The simulation results confirm the method is effective,and also it is well real-time and easy to the project application. | Guifen Xia Hongyan Su Peikang Huang | 2010 | Journal of Systems Engineering and Electronics2010，21，5： | 5 |
| 7 | Tribological Behavior of In Situ TiC/Graphene/Graphite/Ti6Al4V Matrix Composite Through Laser Cladding显示文摘The TiC/graphene/graphite/Ti6 Al4 V composite coating was prepared by laser cladding.The microstructure and tribological behavior of the coating were studied.The in situ reaction between graphene and Ti occurred,and feathery TiC was formed.The feathery TiC was homogeneously distributed betweenα’acicular martensites which was refined with the addition of graphene.Some graphene was transformed into allotrope graphite under the laser irradiation.The TiC hard particles and the self-lubrication of graphene/graphite improved the wear resistance of composite coating.The wear rate and friction coefficient of TiC/graphene/graphite/Ti6 Al4 V composite coating decreased with the increase in sliding speed,a mechanical mixing layer(MML)was formed on the wear surface of the composite coating under the frictional heat,which protected the substrate and reduced the contact.Because of the self-lubricating properties of graphene/graphite,interlayer sliding occurred easily,which also effectively reduced friction.The wear rate of TiC/graphene/graphite/Ti6 Al4 V composite coating increased with the increase in load,but the friction coefficient decreased.The plastic deformation of subsurface layer was more serious under high load,and a stable self-lubricating MML with a protective effect was formed between the wear interfaces,which reduced the friction coefficient.With the increase in load,the wear mechanism changed from abrasive and oxidation wear to delamination,fatigue and oxidation wear. | Zhanyong Zhao Lizheng Zhang Peikang Bai Wenbo Du Shaowei Wang Xiangyan Xu Qingnan Dong Yuxin Li Bing Han | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，10： | 5 |
| 8 | Research on keystone formatting based on non-baseband interpolation显示文摘When there is Doppler ambiguity number mutation,keystone formatting is no longer valid because of integration performance deterioration and false velocity estimation.A novel keystone formatting method based on non-baseband interpolation is presented.It has a different half blind velocity range comparing with normal keystone formatting.Furthermore,there is non-superposition between half-blind-velocity-range of keystone formatting based on baseband and that of non-baseband interpolation.So a synthesizing keystone formatting is proposed to avoid the half-blind-velocity effect.Simulation results of the proposed method show that integration deterioration and velocity estimation falsity can be eliminated effectively. | Yufei Cao Xiaoguang Qu Peikang Huang | 2010 | Journal of Systems Engineering and Electronics2010，21，4： | 3 |
| 9 | Simultaneous formation of trimetallic Pt-Ni-Cu excavated rhombic dodecahedrons with enhanced catalytic performance for the methanol oxidation reaction显示文摘有挖掘结构的 Multimetallic 基于磅的合金由于他们的组合、词法的 tunability,高特定的表面区域,和出色的电镀物品催化的活动吸引了大兴趣。此处,我们报导 trimetallic Pt-Ni-Cu 的第一灵巧的一个壶合成高度与接近 100% 的收益挖掘了菱形的十二面体(ERD ) 。更重要地,这些高度一致的 nanocrystals 有三在尺寸上的可存取的挖掘表面,在丰富的走的原子被观察的地方。得益于高度挖掘的菱形的十二面体组织,电子并且在 trimetallic 合金以内的 synergistic 效果,和丰富的走的原子,同样准备的 trimetallic Pt-Ni-Cu ERD 与商业 Pt/C 和二金属的 Pt-Cu ERD 和 Pt-Ni-Cu 稳固的菱形的十二面体相比为甲醇的电镀物品氧化展出提高的电镀物品催化的表演稳固的菱形的十二面体( SRD )。 | Min Tang Shuiping Luo Kai Wang Hongyu Du Rinrada Sriphathoorat Peikang Shen | 2018 | Nano Research2018，11，9： | 3 |
| 10 | Comparison between two concepts of angular glint:general considerations显示文摘Angular glint can be interpreted as a distortion of the radar echo signal phase front,or alternatively,a tilt of the direction of energy flow from the radial direction.As the complementarities and support of argumentation in our previous work,a general discussion about two concepts of angular glint is made based on electromagnetic theory to demonstrate that these two concepts are equivalent when geometrical optics approximation is used and the receiving antenna is linearly polarized. | Wang Chao Yin Hongcheng Huang Peikang | 2008 | Journal of Systems Engineering and Electronics2008，19，4： | 3 |
| 11 | A new RCS statistical model of radar targets显示文摘 | Xu Xiaojian Huang Peikang | 1997 | IEEE Transactions on AES1997，33，2： | 1 |
| 12 | Unification and Comparison between Two Concepts of Radar Target Angular Glint显示文摘This paper provides a general proof of unification between two concepts of radar target angular glint. The analysis of a two-point target model, consisting of a electrically and a magnetically ideal dipole, shows the relation, difference and equivalent condition between them more clearly. Angular glint has been synthesized from the measured data of radar echo phase, and compared with the theoretical result. | Hongcheng, Yin Peikang, Huang | 1992 | Journal of Systems Engineering and Electronics1992，3，1： | 1 |
| 13 | Spectrum Characteristics and Transfer Function of the Hydrograph of the Deep Aqueous System显示文摘The fluctuation of most of the hydrograph in the deep aqueous system records the fluid pulsation in lithosphere and variation of the earth’s crust. Many observations have verified that groundwater is an ideal information carrier of the crust. In this paper, the series of input (precipitation, air pressure, Earth tide etc.) and output (water level, artesian flow) of the deep aqueous system are studied by using the spectrum analysis and system theory. The application concepts of transfer function and the spectral structure of the hydrograph enrich the knowledge of the deep aqueous system. Two typical spectral structures of the hydrograph of the deep aqueous system are obtained by comparing with many water-bearing systems of the Jizhong depression. One is from well Ma-17 and the other is from the well Xinze-5. Finally, the physical models of forming the spectrum of the hydrograph are constructed on the basis of the spectrum research on the deep aqueous system. | Chen Baoren, Liu Shuyun, Earth Sciences Dept., Nanjing University, Nanjing, Jiangsu, China Jin Peikang Geological Dept., Tulane University, New Orleans, LA 70118, U.S.A. and Dong Shouyu Hebei Province Seismological Bureau, Shijiazhuang, Hebei, China | 1993 | Acta Geologica Sinica(English Edition)1993，67，4： | 1 |
| 14 | China's cement industry in 1996and development prospects for 1997显示文摘 | Peikang R Yuanshen C Yuhui Z | 1997 | World Cement1997，28，6： | 1 |
| 15 | High activityPtPd - WC/C electrocatalyst for hydrogen evolution reac- tion显示文摘 | Wu Mei Shen Peikang Wei Zidong | 2007 | Journal of Power Sources2007，166，2： | 1 |
| 16 | Numerical simulation of temperature field during selective laser sintering of polymer-coated molybdenum powder 显示文摘 | BAI Peikang CHENG Jun LIU Bin | 2006 | Transactions of Nonferrous Metals Society of China2006，16，02： | 1 |
| 17 | Effect of TiC con- tent on Ni/TiC composites by direct laser fabrication显示文摘 | Li Yuxin Bai Peikang Wang Yaomin | 2009 | Materiaals & Design2009，30，4： | 1 |
| 18 | Effect of TiC content on Ni/TiC composites by direct laser fabrication显示文摘 | Yuxin Li Peikang Bai Yaomin Wang | 2009 | Materials and Design2009，30，： | 1 |
| 19 | A Degradation Study of Nation Proton Exchange Membrane of PEM Fuel Cells 显示文摘 | TANG Haolin SHEN Peikang SAN Peijiang | 2007 | Journal of Power Sources2007，170，1： | 1 |
| 20 | Investigation of joining Al–C–Ti cermets and Ti6Al4V by combustion synthesis显示文摘 | Jianhong Wang Jun Cheng Peikang Bai Yuxin Li | 2011 | Materials Science & Engineering B2011，，19： | 1 |
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