München 2019 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

UP: Fachverband Umweltphysik

UP 6: Remote sensing and data analysis methods

UP 6.6: Vortrag

Mittwoch, 20. März 2019, 15:45–16:00, HS 22

digital filter design based on FPGA system for nuclear detection — •yuzhen ma — Institute of Semiconductor and Microsystems Technology, Technische Universität Dresden, Dresden 01069, Germany

Amplitude is an important parameter in the measurement system for the nuclear radiation, which is very critical for a nuclear instrumentation for it is proportional to the amount of charge. By using the traditional Fourier transform appears to be powerless for nuclear radiation signal. As a new signal measurement method, wavelet analysis decomposes various frequency components in the signal into non-overlapping frequency bands, which provides an effective way for signal filtering, The use of wavelet analysis for measuring signal is an important application in nuclear instrumentation, which provides a useful tool for the analysis for non-stationary signals. This work performs a comparison between different digital filters and presents a filter based on FPGA system to obtain precise amplitude value. A filter based on wavelet transform is designed to improve the performance of measuring system for radioactive detection. With specific scintillation detector, the energy resolution is improved by the designed measurement technique comparing to other filters.