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FPGA on-chip system design in the digital oscilloscope Application

Author: ZhaoZhenQiang
Tutor: ChenChangLing
School: University of Electronic Science and Technology
Course: Measuring Technology and Instruments
Keywords: Digital Storage Oscilloscope On-chip system FPGA PLL A / D converter PCI interface Digital Signal Processor HPI interface Peak detection
CLC: TM935.3
Type: Master's thesis
Year: 2005
Downloads: 639
Quote: 5
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Abstract


The topic is \The oscilloscope requires real-time sampling rate of 500Msps, equivalent sampling rate of 40Gsps. This topic includes two parts: on-chip system (SOC) design and dual-processor system efficiency tests. SOC on-chip systems using IP technology to a system 's functions into one chip, the instrument miniaturization and design simplification. The task of this project is to project digital storage oscilloscope (DSO) of the time reference circuit , a control unit and interface circuitry into a field programmable gate array (Field Programmable Gate Array) so that it can complete the DSO data collection capabilities. Wherein the time reference circuit of FPGA provided inside the main phase-locked loop (PLL) design ; control circuit is designed within the FPGA constituting a plurality of registers ; interface circuit also includes PCI interface with the host controller , the A / D the interface converter and the coprocessor interface (HPI). A digital signal processor (DSP) is a specialized microprocessor for digital signal processing . DSP chip hardware structure and operation of the special instruction to quickly achieve a variety of digital signal processing algorithms. In order to improve the DSO data acquisition and processing efficiency , in this demonstration project program added to the system during a one DSP chip as the main controller coprocessor . This part of the work is still in the experimental stage, the result will be designed as a DSO subsequent theoretical reference .

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CLC: > Industrial Technology > Electrotechnical > Electrical measurement techniques and instruments > Frequency, waveform parameter measurement and instrumentation > Oscilloscope
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