In signal processing systems, aliasing is normally treated as a disturbing signal. That motivates the need for effective analog, optical and digital anti-aliasing filters. However, aliasing also conveys valuable information on the signal above the Nyquist frequency. Hence, an effective processing of ...
In particular, aliasing errors are shown to be phase sensitive and can therefore be controlled by suitable equalization of the relative phase of observed input-output signals.doi:10.1080/00207177508922089P. E. WELLSTEADTaylor & Francis GroupInternational Journal of Control...
Anti-aliasing nonstationary signals detecion algorithm based on interpolation in the frequency domain using the short time Fourier transform To eliminate the aliasing that appeared during the measurement of multi-components nonstationary signals, a novel kind of anti-aliasing algorithm based on ... H...
There might still be a need for an analog prefilter to attenuate components above 5 kHz to prevent aliasing in the input. Fortunately, few digital control systems have problems with aliasing, and often you will be able to ignore the effect. High-frequency signals in analog control systems, ...
A high-resolution quadratic time-frequency distribution for multicomponent signals analysis Moreover, we show that the proposed distribution is more accurate than the WVD and the spectrogram in the estimation of the instantaneous frequency of a ... B Barkat,B Boashash - 《IEEE Transactions on ...
(Broadcasting)radiotelevisionthe error in a vision or sound signal arising from limitations in the system that generates or processes the signal Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 20...
In short, dithering has the same role for amplitude quantization as an anti-alias filter has for sampling, in that it enables perfect reconstruction of ... F Gustafsson,R Karlsson - 《Automatica》 被引量: 6发表: 2013年 Dithering apparatus to properly represent aliased signals for high speed ...
Anti-aliasing is the mathematical antidote to aliasing, the jagged or stair-stepped look of diagonal or curved lines in computer graphics. An anti-aliasing algorithm, applied to a bitmapped image or type, evaluates the tone and color of pixels at the ima
The use of Sigma Delta type A/D conversion also has other advantages such as its suitability for integration in a CMOS VLSI process and the fact that the requirements for the anti-aliasing filters in front of the converters are ... Naus, P.J.A.,Dijkmans, E.C. 被引量: 11发表: 1991...
Analog filters can be found in almost every electronic circuit. Audio systems use them for preamplification, equalization, and tone control. In communication sys- tems, filters are used for tuning in specific frequencies and eliminating others. Digital signal processing sys- ...