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A high-power large-scale grating pair compressor design is proposed for ShenGuang II-Petawatt project. As a key component, the compressor design could achieve the characteristics of fast ignition laser pulses, theoretically.
The data model generated by battlefield information is data streams. Because of the rapid data arriving speed and huge size of data set in stream model, novel one-pass algorithms are devised to support data aggregation on demand. VFDT is one of the most successful algorithms for data streams mining, which uses Hoeffding inequality to achieve a probabilistic bound on the accuracy of the tree constructed;...
We address ranging energy optimization for an unsynchronized localization system, which features robust sensor positioning, in the sense that specific accuracy requirements are fulfilled within a prescribed service area. Optimization problems related to the ranging energy of a sensor and beacons are proposed, after which a practical algorithm based on semidefinite programming is presented. The effectiveness...
Aiming at the Chinese academic paper plagiarism detection, proposed chunk based plagiarism detection algorithm with chunk extraction method based on character or word. Taken account of that different part of document has different importance, proposed two paragraph weight algorithms and defined three paragraph weight functions. The best chunk lengths are determined by experiments. Experiments show...
The Ku-band scatterometer onboard HY-2 (SCAT/HY-2) is a pencil-beam radar employing pulse compression techniques to ensure number of the independent measurement samples and the resulted precision of the backscattering coefficient for each resolution cell. In this paper, the system specifications of SCAT/HY-2 are introduced. The signal processing scheme, including pulse compression, resolution cell...
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