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Satellite radar altimeter plays an important role in microwave remote sensing, but its performance and applications on non-ocean surfaces are constrained by its poor resolution. The along-track resolution of altimeters can be improved by the synthetic aperture technology, while the cross-track resolution can be improved by the interferometric technology. Although these two technologies are well-established...
Air supply is very important in coal mine, but it is difficult to maintain proper air pressure for reason of non-linear and large time-delay of air supplying system. A hybrid controller combined Fuzzy-PID and Smith predictive model is proposed after careful analysis, the controller can compensate large delay time and change the big delay time into small one, can adjust PID parameters online by Fuzzy...
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