Title :
Comparison of sample averaging and integrate and dump for measurement of mean radiation in tracer experiment
Author :
McGowan, Catherine ; Shull, Thomas A. ; Stoughton, John W.
Author_Institution :
Old Dominion Univ., Norfolk, VA, USA
Abstract :
A software model of a gas filter radiometer has been constructed for simulation to determine the effect of varying certain system parameters. The radiometer measures the mean of chopped radiation by averaging over 64 chopper cycles. System bandwidth and quantization of the sampling process are investigated for optimal performance. Results indicate that lower bandwidths and a quantisation length of 12 bits provide the best measurement for this investigation. An evaluation of parameter tradeoffs is presented based on analytical results. The measurement process is also described
Keywords :
chemical variables measurement; computerised signal processing; digital simulation; radiometry; spectrochemical analysis; spectroscopy computing; chopped radiation; gas filter radiometer; measurement of mean radiation; sample averaging; software model; tracer; Atmosphere; Atmospheric measurements; Bandwidth; Choppers; Detectors; Earth; Pulse amplifiers; Quantization; Radiometry; Wheels;
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/SECON.1990.117988
