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The blade vibration of the wind turbine is mainly caused by the natural vibration of the blade, the random vibration of the wind and vibration of the bearing of the input side. Collecting vibration wave on the blade and surrounding, then separate the independent waveforms from the collected waveforms by fixed point fast separation (Fast ICA) algorithm, finally, make analysis of the spectrum of the...
This paper presents a method for designing two-channel hybrid filter banks by solving a minimax and a one-dimensional optimization problems derived from the near perfect reconstruction conditions. The design starts with a power-complementary structure of analog analysis filters with a free parameter. First, with this parameter fixed, digital synthesis filters can be designed in minimax sense by using...
The differential constant modulus (DCMA) multiuser detection can obtain higher steady-state decorrelating performance than the conventional linear algorithm under high SNR condition similar as the constant modulus algorithm (CMA). Unlike CMA criterion, DCMA has single global minimum which leads to the convergence independent from the amplitudes of received signal. However, the closed-form analysis...
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