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Multi-channel data acquisition and storage and channel correction

Author: PeiJian
Tutor: GuHong
School: Nanjing University of Technology and Engineering
Course: Communication and Information System
Keywords: Multi-channel Data acquisition Storage Channel calibration FPGA Optical fiber PCI DDR2
CLC: TP274.2
Type: Master's thesis
Year: 2010
Downloads: 190
Quote: 1
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Abstract


The radar system , a large number of real-time data acquisition and storage , then later data analysis and processing , algorithm validation , which requires a high-performance data acquisition system . This thesis is based on the five elements of passive radar designed a multi-channel data acquisition and storage system and multi-channel data channel correction . The multi-channel data acquisition and storage system is constituted by the signal acquisition board and the signal storage plate , and a signal acquisition board using precision ADC to convert analog signals to digital signals, the digital signals to the signal transmitted by the optical fiber storage plate ; signal memory board data received through the optical fiber , with DDR2 SDRAM memory for temporary data storage , and then through the PCI interface to transfer data to the computer's memory , thus completing the data acquisition and storage functions ; Finally , the data acquisition channel amplitude and phase consistency correction . Firstly, the system program demonstrates and discusses the key technologies of the system ; then gives a detailed hardware design of the system , including the design of FPGA and its peripheral devices , clock configuration , and power distribution ; then focuses on the design of the system program from signal acquisition board program design , program design, and application of signal storage board design three parts , mainly given the hardware program design data bits wide and the clock rate does not match the solutions and the PCI driver and application interface programming ; Finally, a channel amplitude and phase consistency correction method , while the completion of the data acquisition and storage system testing .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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