YunFeng Yu

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In this work, a novel prescaler based upon new current mode logic (CML) flip-flop architecture applied to global positioning system (GPS) receivers is proposed. Compared to traditional static current mode logic (CML) flip-flop, it introduces a clock-controlling transistor to reduce the time constant at sensing period. As a result, the speed has been(More)
According to the characteristics of the stratospheric satellite tether, consider the tether's own gravity and flexibility, build the model of the tether by using piecewise analysis and iterative calculation method. Then, combined with the overpressure balloon and the pneumatic sail, establish a meridional motion model of the "balloon-tether-pneumatic sail"(More)
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