

BUTE VIK Department of Measurement and Information Systems  Printable version 
DMIS homepage  Research  Projects  Inverse filtering optimization  
Global optimization of inverse filtering and identification2001  2003 Local supervisor: Dabóczi Tamás
Measuring time domain waveforms can be difficult if the bandwidth of the signal to be measured is higher then that of the measuring system. In this case the signal will be distorted according to the transfer function of the measuring system. If the distortion is not acceptable, there are two possibilities to overcome on the problem. The fist one is to use a higher bandwidth measuring system. This is the appropriate solution, if this can be followed. However, there might be either financial or technical/technological difficulties (metrological or calibration application) which do not allow the first solution. In this case the numerical postprocessing of the measured data can extend the bandwidth of the measurement. The process is called inverse filtering, since the frequency dependent distortion of the measurement system is compensated. Partners:
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