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Modified nearest neighbor fuzzy classification (MNNFC) algorithm is proposed for the character of ship target high resolution range profile (HRRP). Ship length, dispersant, symmetry and central moments features are some stable features for ship HRRP and extracted accurately. Modified nearest neighbor fuzzy classification algorithm is designed for different features to contribute their predominance...
A diode-end-pumped Q -switched mode-locking Nd:GdVO4 laser operating at 1.34 μm with an acousto-optical (AO) Q-switch in a compact V-type cavity was realized in our experiment for the first time. When the AO Q-switch repetition rate was 10 kHz, the maximum average output power of 750 mW and the pulse energy of 75 μ were obtained at the maximum incident pump power of 9 W. The mode-locking modulation...
This study tries to reveal emergencies and their influence on corporation credit risks. Based on the recognition of emergency and its definition, we establish Poisson process model of emergencies and compound Poisson process model of emergenciespsila influence on corporation credit risks. And then, we do some quantification study on them. It turns out that the expectation of the influence can be quantified...
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