Exponentially damped harmonics wavelet series and generic analogue implementation

Mu Li; Zhaoli Geng; Shurui Cao; Lv Zhao

doi:10.1117/12.2631965

14 April 2022 Exponentially damped harmonics wavelet series and generic analogue implementation

Mu Li, Zhaoli Geng, Shurui Cao, Lv Zhao

Proceedings Volume 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021); 121781D (2022) https://doi.org/10.1117/12.2631965
Event: International Conference on Signal Processing and Communication Technology (SPCT 2021), 2021, Tianjin, China

Abstract

The exponentially damped harmonics (EDH) wavelet series related to RLC damped system and their generic implementation using simple OTA and grounded capacitor are presented in this work. The EDH wavelet is derived from second-order RLC circuit and generalized to arbitrary order wavelet function, which will be considered as a wavelet base series. Then, wavelet filter is synthesized using a generic method based on the simple OTA-grounded capacitor circuit. The designed wavelet filters with different scale wavelets can be employed to implement EDH wavelet transform. The simulation results demonstrate the proposed approach is efficient. Furthermore, the generic method could be used to implement other wavelet filter and wavelet transform.

Citation Download Citation

Mu Li, Zhaoli Geng, Shurui Cao, and Lv Zhao "Exponentially damped harmonics wavelet series and generic analogue implementation", Proc. SPIE 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021), 121781D (14 April 2022); https://doi.org/10.1117/12.2631965

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KEYWORDS

Wavelets

Filtering (signal processing)

Digital filtering

Capacitors

Analog electronics

Bandpass filters

Electronic filtering

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