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| 1 | TD-AltBOC:A new COMPASS B2 modulation显示文摘AltBOC(15,10) is the baseline of COMPASS B2 signal modulation.It is a BOC-like signal having different PN codes in the lower and the upper main split lobes,which allow one signal service per lobe.The two lobes can be received and processed separately like two BPSK(10) signals,or coherently processed to achieve better performance.Interoperability among COMPASS B2,Galileo E5 and GPS L5 is also achievable using AltBOC modulation.However,Galileo's 4-code AltBOC has drawbacks such as low efficiency and great receiver complexity.This paper presents a new modulation type named TD-AltBOC (Time Division AltBOC).The signal generation scheme and receiving method are presented,and are compared with AltBOC in the areas of power spectrum,ranging accuracy,anti-multipath performance,anti-interference performance,processing flexibility and complexity.Analysis results show TD-AltBOC has similar spectrum characteristics,interoperability,flexibility and anti-interference performance with AltBOC.When the frontend bandwidth is more than 50 MHz,TD-AltBOC can achieve better ranging accuracy and anti-multipath performance.It also has such advantages as high efficiency and low receiver complexity.TD-AltBOC could be a good solution to COMPASS B2 navigation signal. | TANG ZuPing ZHOU HongWei WEI JiaoLong YAN Tao LIU YuQi RAN YiHang ZHOU YanLing | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，6： | 20 |
| 2 | Sensor fault-tolerant observer applied in satellite attitude control显示文摘The observing failure and feedback instability might happen when the partial sensors of a satellite attitude control sys- tem (SACS) go wrong. A fault diagnosis and isolation (FDI) method based on a fault observer is introduced to detect and isolate the fault sensor at first. Based on the FDI result, the object system state-space equation is transformed and divided into a corresponsive triangular canonical form to decouple the normal subsystem from the fault subsystem. And then the KX fault-tolerant observers of the system in different modes are designed and embedded into online monitoring. The outputs of all KX fault-tolerant observers are selected by the control switch process. That can make sense that the SACS is part-observed and in stable when the partial sensors break down. Simulation results demonstrate the effectiveness and superiority of the proposed method. | Jiaolong Wei Zhaohui Cen Rui Jiang | 2012 | Journal of Systems Engineering and Electronics2012，23，1： | 2 |
| 3 | UNIFORM-PRICE AUCTION FOR BANDWIDTH ALLOCATION IN THE INTERNET显示文摘It has been widely accepted that auctioning which is the pricing approach with minimal information requirement is a proper tool to manage scare network resources. Previous works focus on Vickrey auction which is incentive compatible in classic auction theory. In the beginning of this letter, the faults of the most representative auction-based mechanisms are discussed. And then a new method called Uniform-Price Auction (UPA), which has the simplest auction rule is proposed and its incentive compatibility in the network environment is also proved. Finally, the basic mode is extended to support applications which require minimum bandwidth guarantees for a given time period by introducing derivative market, and a market mechanism for network resource allocation which is predictable, riskless, and simple for end-users is completed. | Wei Jiaolong Zhang Chi (Dept. of Electron, and Information, lluazhong Univ. of Science and Technology, Wuhan 430074) | 2002 | Journal of Electronics(China)2002，19，4： | 1 |
| 4 | LQR self-adjusting based control for the planar double inverted pendulum显示文摘 | Zhang Jiaolong Zhang Wei | 2012 | Physics Procedia2012，，24： | 1 |
| 5 | Evolution Dynamic Behavior of Weighted Networks with Disadvantaged Long-Range Connection显示文摘 | HU Jin WEI Jiaolong HUANG Shuanglin PENG Fuyuan | 2010 | Chinese Journal of Electronics2010，19，3： | 1 |
| 6 | LQR self-adjusting based control for the planar double inverted pendulum显示文摘 | Zhang Jiaolong Zhang Wei | 2012 | Physics Procedia2012，24，： | 1 |
| 7 | Surface-effect on detection ability of fluorescent Eu(btc)metal-organic frameworks to metal ions显示文摘Eu(btc)metal organic frameworks(MOFs)were prepared by co-precipitation method via 1,2,4-benzenetricarboxylic acids(H3btc)connecting with Eu^(3+)ions,and the morphology was controlled from compact spherical to irregular honeycomb by adjusting the pH of reaction solutions.The luminescence properties of Eu(btc)MOFs are found to be related to the surface morphology of products,and the compact spherical one performs stronger emission intensity.The sensing ability of Eu(btc)MOFs to 11 kinds of metal ions was investigated and a prominent quenching effect occurrs in Fe^(3+),or Ni^(2+)solutions.Based on UV—vis absorption analysis,an“ion-fence”model presents the competition to absorb exciting light between Eu(btc)MOFs and adsorbed metal ions.Based on Stern-Volmer equation,the Eu(btc)detection is found with higher Ksv value and a lower detection limit.Meanwhile,a higher sensing efficiency is confirmed in the Eu(btc)MOFs with loose honeycomb due to aggravating porous surface offering much more sites for metal ions. | Jiaolong Peng Wei Zhou Heping Ding Huanhuan Du Shujing J.Li | 2021 | Journal of Rare Earths2021，39，4： | 0 |
| 8 | Preparation and Properties of Si2N2O Ceramics for Microwave Sintering Furnaces显示文摘Si2N2O ceramics were prepared using amorphous Si3N4 as the raw material and Li2CO3 as the sintering additive through vacuum multi-stage sintering.The influence of the Li2CO3 addition(0%,1%,2%,3%,and 5%,by mass)on the phase composition,the microstructure,the porosity,the mechanical properties,the dielectric constant and the tangent of the dielectric loss angle of the porous Si2N2O ceramics was investigated.The results reveal that a suitable addition of Li2CO3 can promote the generation of Si2N2O but excessive or inadequate Li2CO3 causes decomposition of Si2N2O ceramics.The prepared porous Si2N2O ceramics have good mechanical properties,good thermal shock resistance,and low dielectric properties,which have excellent potential for application in microwave sintering furnaces. | ZHENG Han LI Wei DU Jiaolong LI Hongxia LIU Guoqi CHEN Zihao CHEN Yongqiang | 2020 | China's Refractories2020，29，2： | 0 |
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