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Fpga-based Research and Implementation of Pulse Compression System

Author: Wang
Tutor: HuXiuLin
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: Linear FM Pulse compression Frequency domain processing FPGA
CLC: TN957.51
Type: Master's thesis
Year: 2009
Downloads: 29
Quote: 1
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Abstract


Mainly used in modern radar pulse compression distance detection and target identification . Woodward theoretically perfect idea of pulse compression , large matched filtering with integrated signal compression , you can get the output narrow pulse . Using wide pulse in order to improve the average power transmitted , to ensure that the effective distance , and when receiving via pulse compression for narrow pulse , thereby increasing the distance resolution , and thus can be a good solution to the contradiction of the radar range , and resolution . At present , the digital pulse pressure system mostly uses DSP as the core processing chip , and at the same time using multiple DSP operations to improve processing speed , but this practice more complex system architecture , the precision is not good guarantee , can not to achieve the requirements of modern radar . The main purpose of this subject is based on FPGA as the core processing chip developed structure is simple , fast processing speed , high precision real-time pulse pressure system . In this article , the first pulse compression system are introduced , including some of the features of the chirp signal , matched filtering chirp signal and side lobe suppression concept , then there are specific principle of pulse compression and implementation methods ; subsequent to this article indicators and requirements of the project involved the introduction and theoretical topics indicators of the overall program and algorithm , and the algorithm using MATLAB simulation , given the comparison of simulation results with the system requirements ; the next step is for the hardware platform used in the program , a brief introduction , including the choice of a / D and FPGA , and a detailed explanation of the reason of the selection device combined with system indicators ; programs and algorithms of the theory is implemented on the FPGA carried out a detailed analysis and demonstration , including the specific implementations of the algorithm , the balance of resources and time in the implementation process of the FPGA , the function of each module , and the overall structure of the program ; final platform of the project carried out in the last test , and the test method and results are given . In this paper, FPGA-based pulse pressure system requirements as the pre-research project to do for the future of the specific application of technology accumulation .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar equipment,radar > Radar receiving equipment > Radar signal detection and processing
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