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JSIR Vol.68(05) [May 2009] >


Title: 24 Bit seismic processor for analyzing extra large dynamic range signals for early warnings
Authors: Kumar, Satish
Sharma, B K
Sharma, Parkhi
Shamshi, M A
Keywords: 24 Bit seismic processor
Digital seismograph
Early warning
Earthquake
Seismic Alert System
Issue Date: May-2009
Publisher: CSIR
Abstract: Modified design is presented of existing 24 bit seismic data recorder comprising PC –architecture using PCI bus, ISA bus, and PC 104 bus in a single module to develop a flexible measurement set up. Paper elaborates use of building blocks [Disk on chip (DoC), GPS based timing unit, signal-processing module, and efficient software packages] worked out in visual C++ to develop compact sized instrument for quick decision-making with minimum error detection of true events. Paper describes Ethernet connectivity use for data downloading in a laptop without interruption of event data acquisition. Software packages for conversion of recorded data into SUDS and SEISAN formats have been realized and incorporated.
Page(s): 372-378
ISSN: 0022-4456
Source:JSIR Vol.68(05) [May 2009]

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