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Design of Signal Processing Circuits for Linear Frequency Modulation Detection System Which is Based on FPGA

Author: HeWenSi
Tutor: ZhangZhongXiong；HeNaiZhong
School: Nanjing University of Technology and Engineering
Course: Electronics and Communication Engineering
Keywords: FPGA FIR digital filter A / D converter D / A converter
CLC: TN911.7
Type: Master's thesis
Year: 2012
Downloads: 21
Quote: 0
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Abstract


This thesis is based on radio digital IF Thought for millimeter wave FM ranging systems , designed on the basis of the range gate FPGA as the core hardware and software of the signal processing circuit , and ultimately realize the range of 0-20m distance fixed function . The paper first discusses the basic theory of the triangular wave FM signal transmitting frequency f0, frequency offset ΔF , the calculation of the modulation frequency fm and FIR digital filters . Then introduce the system core chip the Xilinx XC3S400 the selection and hardware circuit design . Software design , including the determination of the parameters of 5-channel FIR filter 3dB bandwidth , minimum stopband attenuation , call the Matlab filter design function firl , and Kaiserord access to meet index requirements FIR filter tap coefficients h (k) , and XC3S400 chip using Verilog HDL language programming in the 5-channel FIR filter . Finally comes through ISE Test Bench WaveForm tool the overall joint trial and error of the FIR filter simulation and system analysis.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory > Signal processing
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