Evaluation of the Geotech Smart24 data acquisition system with active Fortezza crypto card data signing and authentication.

Hart, Darren M.

关键词: ACCURACY;    ANALOG-TO-DIGITAL CONVERTERS;    DATA ACQUISITION SYSTEMS;    DIGITIZERS;    DOCUMENTATION;    EVALUATION;    PERFORMANCE;    SANDIA NATIONAL LABORATORIES;    SPECIFICATIONS;    WAVE FORMS;   

DOI  :  10.2172/1004380
RP-ID  :  SAND2008-3264
PID  :  OSTI ID: 1004380
Others  :  TRN: US201104%%969

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Sandia National Laboratories has tested and evaluated Geotech Smart24 data acquisition system with active Fortezza crypto card data signing and authentication. The test results included in this report were in response to static and tonal-dynamic input signals. Most test methodologies used were based on IEEE Standards 1057 for Digitizing Waveform Recorders and 1241 for Analog to Digital Converters; others were designed by Sandia specifically for infrasound application evaluation and for supplementary criteria not addressed in the IEEE standards. The objective of this work was to evaluate the overall technical performance of the Geotech Smart24 digitizer with a Fortezza PCMCIA crypto card actively implementing the signing of data packets. The results of this evaluation were compared to relevant specifications provided within manufacturer's documentation notes. The tests performed were chosen to demonstrate different performance aspects of the digitizer under test. The performance aspects tested include determining noise floor, least significant bit (LSB), dynamic range, cross-talk, relative channel-to-channel timing, time-tag accuracy, analog bandwidth and calibrator performance.