Title :
Anti-aliasing Technique Receiving the Low Frequency Signal of Geoelectricity
Author :
Du Hai ; Xianhe, DuHai
Author_Institution :
Dept. of Inf. Eng., Harbin Inst. of Technol., Weihai
Abstract :
This paper analyzes the cause of frequency aliasing phenomenon when sampling the low frequency signal of geoelectricity, and brings forward the arithmetic of practical digital filtering; based upon the above, the anti-aliasing filter that makes use of cascade decimation was developed. The rationality of the design solution is validated through field spot signal collection.
Keywords :
geophysical signal processing; terrestrial electricity; anti-aliasing filter; anti-aliasing technique; cascade decimation; digital filtering; low frequency geoelectricity signal; Digital arithmetic; Digital filters; Filtering; Frequency; Instruments; Sampling methods; Semiconductor device measurement; Signal analysis; Signal design; Signal sampling; real-time software filtering; the anti-aliasing filter; the signal of geoelectricity;
Conference_Titel :
Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on
Conference_Location :
Xiamen, Fujian
Print_ISBN :
1-4244-1035-5
Electronic_ISBN :
1-4244-1035-5
DOI :
10.1109/IWASID.2007.373725
