Abstract
In this paper, we propose the use of shaping pulses as flat top windows for accurate amplitude and phase estimation from periodic signals in power systems. The intention is to eliminate the amplitude correction required to compensate the short-range leakage produced by nonflat-mainlobe windows in case of asynchronous sampling. The performance of the standard rise cosine filter, a generalized raised-cosine filter and a Hanning window, all of them with the same bandwidth, is compared in the simulation results. It is concluded that the accuracy of the estimates provided by the shaping pulses without amplitude compensation in the asynchronous case is relatively better than that of the amplitude compensated estimates obtained with the Hanning window. The generalized raised-cosine filter can achieve lower sidelobe levels but it does not improve the accuracy of the amplitude estimates of the standard raised-cosine filter.
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