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Due to adoption of a large amount of multipliers, the standard Farrow filter structure in digital resampling design has been the performance bottleneck of wideband signal demodulation. To improve demodulation performance, this paper proposes a full parallel resampling filter structure based on iterated short convolution algorithm (ISCA). The proposed design can effectively reduce the consumption of...
This paper introduces a modular multilevel converter (MMC) based prototype for investigating the control of large-scale MMCs. The prototype contains 264 submodules (SMs) totally, which are designed in such a way that they can be rearranged between the half-bridge model and full-bridge model conveniently. Therefore, the characteristics of various typologies based on voltage-sourced converters can be...
There are many identical cascaded power units in voltage sourced converter (VSC) based on cascaded H-bridge or cascaded half-bridge, and the capacitor voltage balance is an important issue in them. The capacitor voltage in every power unit should be monitored on-line, which needs a versatile system to collect capacitor voltage. This paper proposes an on-line data collection system which can be used...
An efficient implementation of discrete wavelet transform (DWT) in JPEG2000 is designed with low memory and high pipeline architecture. Considering the limited dynamic range of wavelet coefficients, a modified scheme of integer-to-integer discrete wavelet transform based on fixed-point manipulation is proposed by preserving efficiently fractions of coefficients in lifting steps. This scheme ensures...
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