63880 Unit of PLA

Luoyang, China

63880 Unit of PLA

Luoyang, China
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Yu Q.,Zhengzhou University | Wang Y.-D.,Zhengzhou University | Han J.-H.,Zhengzhou University | Zhang C.-X.,69026 Unit of PLA | Liu M.,63880 Unit of PLA
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | Year: 2011

Using microstrip lines as application background, and by employing inverse Laplace transform, multiplications appearing in BLT equation in frequency domain are changed into temporal convolution, and together with series operations, the BLT equation in frequency domain is expanded to time domain. By making use of this BLT equation in time domain, the terminal transient response voltage of an uniform lossy microstrip line is calculated. The numerical simulation results show that the computed results derived from the BLT equation in time domain have a good agreement with those ones in frequency domain, consequently, the validity of the expansion is proved. The numerical simulation results also supply references to the study of lump source excitation effects on microstrip lines.


Han J.,PLA University of Science and Technology | Han J.,63880 Unit of PLA | Ding W.,PLA University of Science and Technology | Chen F.,Anhui Normal University
2010 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2010 | Year: 2010

In order to satisfy the requirement of dual-frequency, a novel ring shape antenna for dual-band WLAN applications is proposed. The antenna is fed by a 50Ω microstrip line. The configuration is simple. The proposed antenna consists of a ring-shape monopole which has two resonating paths with a gap. Therefore, the antenna can work at the two bands of WLAN. Optimization of the antenna and antenna radiation efficiency are analyzed by HFSS. Both the simulation result and the experimental result are provided. They coincide with each other. © 2010 IEEE.


Chen Y.-Z.,63880 Unit of PLA | Chen Y.-Z.,National University of Defense Technology | Zhou J.-X.,National University of Defense Technology | Fu Q.,National University of Defense Technology
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | Year: 2011

The optimizing problem of a binary detector for distributed targets in Gaussian noise is studied. The performance of the binary detector is restricted by the distribution characteristic of scattering centers. Firstly, the relationship between the distribution characteristic of scattering centers and the performance of the binary detector is analyzed in detail. Then, the optimal binary parameters are given in the form of an experimental formula, and the principle of designing optimal binary parameters is proposed. Finally, the results of simulation prove that the optimal parameters are determined by the length of profile and the number of scattering centers.


Xu S.,63880 Unit of PLA | Guo R.,63880 Unit of PLA | Bai Y.,63880 Unit of PLA | Zhang Y.,63880 Unit of PLA | Li Y.,63880 Unit of PLA
Proceedings of the IEEE International Conference on Software Engineering and Service Sciences, ICSESS | Year: 2013

In order to reduce costs of software testing, and make the process more efficient, a methodology for test suite optimization is presented in this paper. An example is given to demonstrate the efficiency of this methodology. © 2013 IEEE.

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