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Báo cáo hóa học: " FPGA-Based Reconfigurable Measurement Instruments with Functionality Defined by User"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: FPGA-Based Reconfigurable Measurement Instruments with Functionality Defined by User | Hindawi Publishing Corporation EURASIP Journal on Applied Signal Processing Volume 2006 Article ID 84340 Pages 1-14 DOI 10.1155 ASP 2006 84340 FPGA-Based Reconfigurable Measurement Instruments with Functionality Defined by User Guo-Ruey Tsai and Min-Chuan Lin Department of Electronics Engineering Kun-Shan University of Technology Taiwan Received 2 October 2004 Revised 5 March 2005 Accepted 25 May 2005 Using the field-programmable gate array FPGA with embedded software-core processor and or digital signal processor cores we are able to construct a hardware kernel for measurement instruments which can fit common electronic measurement and test requirements. We call this approach the software-defined instrumentation SDI . By properly configuring we have used the hardware kernel to implement an M-channel arbitrary waveform generator with various add-on functions a wideband and precise network analyzer a high-speed signal digitizer and a real-time sweep spectrum analyzer. With adaptively reconfiguring the hardware kernel SDI concept can easily respond to the rapidly changing user-application-specified needs in measurement and test markets. Copyright 2006 Hindawi Publishing Corporation. All rights reserved. 1. INTRODUCTION As the power of FPGA increases 1 2 we find ourselves with the ability to design simulate analyze and even emulate the more complex devices with application-specified embedded processor and or digital signal processor cores. From the viewpoint of SDI concept 3 the process of measurement has been reduced only to signal excitation captures conditioning processing and output display as illustrated in Figure 1 4 . Figure 2 illustrates that the traditional instrumentation technique depends on digital signal processor microprocessor unit virtual instruments application-specified integrated circuit ASIC or FPGA which are in charge of the responsibility of signal conditioning and signal processing. The instrument market is fragmented because instruments are .