本文選題：場面監(jiān)視雷達 + 脈沖壓縮��； 參考：《電子科技大學》2014年碩士論文

【摘要】：機場場面監(jiān)視雷達是空中交通管制系統(tǒng)的重要組成部分,主要用于監(jiān)視機場場面的動目標和靜目標。該系統(tǒng)可以實時有效地掌握機場場面的交通運行情況,對機場的安全管理、高效運行起到至關重要的作用。在整個場面監(jiān)視系統(tǒng)中,信號處理技術是檢測地面目標的核心技術,且機場環(huán)境比較復雜,提出優(yōu)化的信號處理設計方案來提高檢測概率,對整個監(jiān)視系統(tǒng)是非常重要的。另外,隨著微電子技術的快速發(fā)展,DSP、FPGA等技術得到廣泛應用,傳統(tǒng)的模擬信號處理逐漸轉為高效的數字信號處理,以滿足對數據處理的實時性和高速性的要求。為使場面管制人員及時掌握機場的地面信息,場面監(jiān)視雷達需要更高的實時性才能保證機場場面的安全運行。對類似于飛機、汽車等可移動目標,單一的動目標檢測技術和靜目標檢測技術無法實現有效的監(jiān)視,因此在課題中采用了一種新的可移動目標檢測技術,并在硬件上實現。結合機場這種特殊環(huán)境,本文采用的雷達體制是線性調頻脈沖雷達,主要分為以下三個方面進行研究:第一,對場面監(jiān)視雷達信號處理基本理論的研究。主要包括脈沖壓縮、動目標顯示MTI和AMTI、動目標檢測、雜波圖CFAR、頻率分集、二次檢測技術等。本文詳細地闡述了各個部分的基本原理以及常規(guī)實現方法,并用Matlab、Modelsim等工具對各模塊進行了仿真。第二,對場面監(jiān)視雷達信號處理的總體設計。針對場面監(jiān)視雷達的工作環(huán)境,提出了特定的信號處理方案,并詳細講解了各個模塊結構。第三、對場面監(jiān)視雷達信號處理系統(tǒng)的硬件實現,使用由Altera公司的Stratix V系列FPGA芯片5SGSMD5K2F40I3N構成的開發(fā)板,采用VHDL語言并結合IP核,對各個信號處理模塊和數據通信模塊進行調試,完成了場面監(jiān)視雷達信號處理的FPGA實現。本文對場面監(jiān)視雷達信號處理的相關理論進行了研究,并根據具體情況確定信號處理方案,在硬件上實現,具有一定的工程意義。
[Abstract]:The airport scene surveillance radar is an important part of the air traffic control system, which is mainly used to monitor the moving target and the static target of the airport scene. The system can effectively grasp the traffic situation of airport scene in real time and play an important role in airport security management and efficient operation. In the whole scene monitoring system, the signal processing technology is the core technology to detect the ground target, and the airport environment is quite complex. It is very important for the whole surveillance system to put forward the optimized signal processing design scheme to improve the detection probability. In addition, with the rapid development of microelectronic technology and other technologies such as DSP FPGA, traditional analog signal processing is gradually converted to efficient digital signal processing to meet the real-time and high-speed requirements of data processing. In order to make the scene controller grasp the ground information of the airport in time, the scene surveillance radar needs higher real-time ability to ensure the safe operation of the airport scene. The single moving target detection technology and the static target detection technology can not effectively monitor the moving targets such as aircraft and automobile, so a new movable target detection technology is adopted in this paper, and it is implemented in hardware. Combined with the special environment of airport, the radar system adopted in this paper is linear frequency modulation pulse radar, which is mainly divided into the following three aspects: first, the basic theory of signal processing for scene surveillance radar is studied. It mainly includes pulse compression, moving target display MTI and AMTI, moving target detection, clutter map CFAR, frequency diversity, secondary detection technology and so on. In this paper, the basic principle of each part and the general implementation method are described in detail, and the simulation of each module is carried out by using Matlab Modelsim and other tools. Second, the overall design of radar signal processing for scene surveillance. According to the working environment of the scene surveillance radar, a special signal processing scheme is proposed, and the structure of each module is explained in detail. Thirdly, the hardware realization of the signal processing system of the scene surveillance radar is realized. The development board composed of Altera's Stratix V series FPGA chip 5SGSMD5K2F40I3N is used to debug each signal processing module and the data communication module by using VHDL language and IP core. The FPGA implementation of scene monitoring radar signal processing is completed. In this paper, the related theory of signal processing of scene surveillance radar is studied, and the signal processing scheme is determined according to the specific situation, which is realized in hardware and has certain engineering significance.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：V355;TN957.51

【參考文獻】

相關期刊論文 前4條

1 鄭清;;光纖傳輸技術在雷達系統(tǒng)中的應用[J];光通信技術;2006年04期

2 李成文;;一種用VHDL語言設計的SDRAM控制器及其應用[J];航空計算技術;2007年05期

3 孫國政;卞雷祥;;雷達雜波自適應抑制技術[J];雷達與對抗;2011年02期

4 孫實澤;;航管一次機場監(jiān)視雷達信號處理設計[J];現代電子技術;2007年23期

，

本文編號：2063257