Title :
Techniques of improved signal extraction in scan conversion-based transient digitizers
Author :
Arpaia, Pasquale ; Baccigalupi, Aldo ; Cennamo, Felice
Author_Institution :
Dipt. di Ingegneria Elettrica, Naples Univ., Italy
fDate :
8/1/1997 12:00:00 AM
Abstract :
This paper deals with a technique to improve the signal extraction from the target diode matrix of scan conversion-based transient digitizers. The target charge distribution corresponding to the input signal is analyzed through statistical-based techniques. The identification of the distribution model allows main distortion effects to be identified and corrected. Experimental results of tests carried out on an actual scan converter using dc and sine wave signals showed that signal extraction can be improved mostly by correcting the center displacement of the column distributions
Keywords :
charge measurement; electric distortion; electric distortion measurement; quantisation (signal); statistical analysis; transient analysis; A/D converters; center displacement correction; column distributions; dc signals; distortion effects; distribution model; identification; scan conversion-based transient digitizers; signal extraction; sine wave signals; statistical techniques; target charge distribution; target diode matrix; Dispersion; Distortion measurement; Electron beams; Matrix converters; Semiconductor diodes; Signal analysis; Statistical analysis; Testing; Vision defects; Writing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on