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Random missing observations in real-world inverse synthetic aperture radar (ISAR) imaging may appear due to the instability of the radar system. Under this circumstance, the signal of one range bin over the slow-time has limited samples. Using traditional range-Doppler algorithm, high-quality ISAR images for random missing observations cannot be obtained. Recently, a new non-iterative algorithm based...
Transformer online operation state directly influences the operation state of the whole power system. A transformer online operation state assessment method is proposed in this paper. This method is based on history, real-time, future operation data of transformer, and five evaluation models for device, maintenance, state, operation, and plan are established. Six category twenty-five sub-index es...
Based on the unascertained theory, the paper elaborated exhaustively the construction process of the unascertained measure model. Combined with the unascertained measure model, the factors affecting coal-mine safety are analyzed and evaluated. According to the reality of Bofang coal-mine safety management, we can collect the measured data, determine the safety evaluation index, calculate for example...
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