Sensors & Transducers Journal (ISSN: 2306-8515, e-ISSN 1726-5479) |
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Intelligent Information Process, Automation Technologies and Applications
Vol. 21, Special Issue, May 2013, pp.164-168
The Design of Multi-channel Signals Source with High-speed and
High-precision Based on FPGA
1 Xiao-Dan DU, 2 Qing HU, 1, 3 Tao YAN, 1, 3 Yong-Hong LIU1 College of Information Science & Technology of Chengdu University, Sichuan, Chengdu, 610106, China 2 College of Electronic and Information Engineering of Chengdu University, Sichuan, Chengdu, 610106, China 3 Key Laboratory in Colleges for Pattern Recognition and Intelligent Information Processing of Sichuan Province, Sichuan, Chengdu, 610106, China 1 E-mail: xiaodandu@yeah.net
Received: 26 March 2013 /Accepted: 14 May 2013 /Published: 30 May 2013 |
Abstract: The multi-channel signals source that the structure is simple and flexible control is proposed in the article, with FPGA and high-speed D/A as its core. The choice of parts of apparatus, hardware constitution and design of software of the signals source are recommended here. Before the hardware designed, detailed theoretical analyses and quantitative description for the key factors on effecting the precision of signal source are given, and when debugging in hardware circuit is completed, on the base of analysis, errors estimation were verified with experimental results. It has provided high-precision signal related to the static and dynamic characteristics test accuracy of measured system for encoder and memory. By experiment and application it can meet the system requirements and has some theoretic and practical value.
Keywords: Multi-channel, Signals source, FPGA, High-speed, High-precision
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