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 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 .
