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This paper presents a signal-reused technique for distributed amplifier (DA) by using feedback transformers between the cascaded gain stages. With a proper coupling coefficient (k) of the feedback transformer, the gain-bandwidth (GBW) product of DA can be improved by extending the bandwidth of DA while maintaining the same average gain without increasing the power consumption. The DA is realized by...
The insulation defects in a cable joint may be formed in its manufacturing and long-term operation processes, and will cause the power system faults due to electrical or thermal breakdown of cable insulation. In this work, based on the electromagnetic-thermal coupled theory, the 3-D models of a 64/110 kV power cable joint with and without the presence of insulation defects are set up, then the electromagnetic...
Due to the increasing demands of lower-power devices, a lot of research effort has been devoted to develop new SRAM cell designs that can be effectively and economically operated at the subthreshold region. However, each new SRAM cell design has its own cell structure and design techniques, which may result in different faulty behaviors than the conventional 6T SRAMs and require specialized test methods...
This paper develops a fuzzy network control system for the collecting main pressure control. This control system is connected via Profibus-DP for the real-time communication in the control system. The collecting main pressure system is a multi-variables, nonlinear and heavy coupling system. The coupling problem is the major difficulty in the collecting main pressures system. The fuzzy forward decoupling...
A new method that integrated high level synthesis and floorplan are proposed to reduce the total power dissipation. Function units are sorted into several clusters according to their working voltages. Floorplan are executed with the information of cluster gained from high level synthesis, and then the high level synthesis resolutions are adjusted iteratively with the interconnect information and switching...
Optimization correction of spectral distortion for superimposed DWDM multichannel fiber Bragg grating filters is performed with a hybrid Lagrange multiplier optimization algorithm to enable fast convergence as well as to retain the easy-fabrication merits.
This work proposes a jointed mode detection and symbol detection scheme for DVB-T. To reduce hardware complexity, the division operation of normalized maximum correlation (NMC) is removed and the delay line which uses twisted memory access method lowers the hardware cost. In addition, the proposed detection procedure does not need to refill or replenish the received data samples; as the result, the...
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