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Passive Electrical and Optical Methods of Ultra-Short Pulse Expansion for Event Timer-Based TDC in PPM Receiver

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Electronics | Free Full-Text | Passive Electrical and Optical Methods of Ultra-Short Pulse Expansion for Event Timer-Based TDC in PPM Receiver (mdpi.com)

Aboltins, A.; Solovjova, T.; Semenako, J.; Kusnins, R.; Migla, S.; Sics, P.E.; Selis, O.; Tihomorskis, N.; Prigunovs, D.; Ostrovskis, A.; et al. Passive Electrical and Optical Methods of Ultra-Short Pulse Expansion for Event Timer-Based TDC in PPM Receiver. Electronics 2023, 12, 4634. https://doi.org/10.3390/electronics12224634

Custom-designed Bessel third-order LPF filters: (a) Magnitude-Normalized and (b) Classical, with cutoff frequencies fc = 1.8 GHz.
Pulse generated by Keysight M8195A AWG and expanded using Classical custom-designed filter. (a) Waveforms of the pulses acquired by Keysight DSAZ334A DSO. (b) Normalized magnitude spectra calculated using FFT.
Pulse generated by Keysight M8195A AWG and expanded using Magnitude-Normalized
custom-designed filter. (a) Waveforms of the pulses acquired by Keysight DSAZ334A DSO. (b) Normalized magnitude spectra calculated using FFT.