Title :
Wide-Range Dynamic Signal Pre-Processing Circuit to Rayleigh Wave Seismic Prospecting Apparatus
Author :
Chenglong, Gong ; Yuan, Feng ; Zhuojing, Wang
Author_Institution :
Huaihai Inst. of Technol., Lianyungang
fDate :
Aug. 16 2007-July 18 2007
Abstract :
A novel method for Rayleigh wave signal preprocessing with a new structure ADC was proposed. By investigating the deficiency of traditional Rayleigh wave prospecting apparatus in effective dynamic range and exploration precision, this note brought forward a new floating-point ADC signal channel. Signal amplifying and offset error self-compensation algorithm were discussed. APP show that system transient dynamic range/tiptop signal frequency of fleet-level, middle-level & deep-level are 90 db/1536 Hz, 90 db/200 Hz & 84 db/156 Hz respectively, and the upright exploration resolution of middle & deep-level is better than the traditional floating-point ADC and Sigma-Delta ADC prospecting apparatus.
Keywords :
Rayleigh waves; floating point arithmetic; geophysical prospecting; seismic waves; sigma-delta modulation; Rayleigh wave; exploration precision; floating-point ADC signal channel; offset error self-compensation algorithm; seismic prospecting apparatus; signal amplifying; transient dynamic range-tiptop signal frequency; upright exploration resolution; wide-range dynamic signal preprocessing circuit; Circuits; Dynamic range; Frequency; Geologic measurements; Geology; Geophysical measurements; Instruments; Seismic measurements; Signal resolution; Surface waves; Rayleigh wave; dynamic signal range; floating-point ADC; seismic prospecting apparatus;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351251
