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A novel antenna array with over 120 degree coverage in the azimuth plane based on a conformal waveguide is proposed. The 8×8 element array with directivity gain of 15.7dBi at 79GHz is designed and confirmed that the side lobe level by using switching method can be suppressed over 5dB compared to a linear array with 8 branch.
This paper proposes a novel anomaly detection method of network worms. The algorithm detects unknown worms by multidimensional worm abnormal detection technology, extracts its feature string via analyzing worm data with leap-style and creates new rules to detect the corresponding worm in case that the unknown worm attacks again. The paper has realized the automatic detection of unknown worms. Experiment...
Railway transportation, as one of the most energy-intensive industries, consumes a large amount of energy each year and train energy-efficient operations are paid more attention to reduce energy consumption and operation costs. This paper proposes to optimize the energy-efficient operation strategy and the integrated train timetable together. After considering the variable fiction and the speed limits...
The linear switched system is a kind of special hybrid system and composed of several continuous event subsystems and a switching signal. In the paper, the fault detection problem of switched system is addressed using unknown input observers (UIOs). First of all, parameters of UIOs are calculated through computing the inverse of system matrices and solving several linear matrix inequalities, which...
Switched interval system is a kind of special switched system whose parameter matrix changes in a limited and known range. Because switched property and interval matrix exist simultaneously, the structure of switched interval system is more complicated than common switched system. The fault detection problem is studied in this paper. The method of common lyapunov function is used under arbitrary switching...
This paper designs a isolated resonance cuk circuit based on the theoretical analysis of cuk circuit, and do experiment of this circuit, also research the circuit's working principle and transmission efficiency under different load; Combining with the PV arrays working characteristics, this circuit was applied in photovoltaic (PV) generating control system to realize the maximum power point tracking...
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