【摘要】：合成孔徑雷達(dá)(SAR)是通過(guò)信號(hào)處理技術(shù)將小孔徑天線等效為一個(gè)大天線從而提高分辨率的雷達(dá)成像系統(tǒng),具有分辨率高、全天時(shí)、全天候的工作特點(diǎn)。近年來(lái),合成孔徑雷達(dá)發(fā)展迅速,不僅可以獲得高質(zhì)量的成像圖像,而且具有硬件設(shè)備簡(jiǎn)單、成本低、易操作、性能穩(wěn)定等優(yōu)點(diǎn)。本文以車載合成孔徑雷達(dá)為實(shí)驗(yàn)背景,圍繞數(shù)據(jù)采集、系統(tǒng)自檢與擦地角估計(jì)進(jìn)行上位機(jī)控制軟件的設(shè)計(jì)與實(shí)現(xiàn)。本文主要開(kāi)展了以下幾方面的研究工作:首先通過(guò)對(duì)雷達(dá)系統(tǒng)需求及技術(shù)指標(biāo)的分析,給出了系統(tǒng)的工作流程并設(shè)計(jì)了軟件開(kāi)發(fā)方案。之后利用Matlab對(duì)系統(tǒng)自檢與擦地角估計(jì)的原理進(jìn)行仿真。然后采用面向?qū)ο蟮某绦蛟O(shè)計(jì)思想完成上位機(jī)控制軟件的開(kāi)發(fā),設(shè)計(jì)了軟件結(jié)構(gòu)及通信協(xié)議,編寫了基于WinDriver的PCIe驅(qū)動(dòng)程序,實(shí)現(xiàn)了系統(tǒng)自檢和擦地角估計(jì)功能。最后參與完成了車載合成孔徑雷達(dá)成像系統(tǒng)的系統(tǒng)聯(lián)調(diào)和外場(chǎng)實(shí)驗(yàn)。本文研究的車載合成孔徑雷達(dá)上位機(jī)控制軟件,經(jīng)過(guò)雷達(dá)測(cè)試驗(yàn)證,滿足了設(shè)計(jì)指標(biāo),已具備較為完善的功能,并且在軟件設(shè)計(jì)方面保證了后續(xù)功能的擴(kuò)展,具有較高的實(shí)用性。
[Abstract]:Synthetic Aperture Radar (SAR) is a radar imaging system which uses signal processing technology to equivalent small aperture antenna to a large antenna to improve the resolution. It has the characteristics of high resolution, all-day and all-weather. In recent years, synthetic aperture radar (SAR) has developed rapidly, which can not only obtain high quality imaging images, but also has the advantages of simple hardware equipment, low cost, easy operation and stable performance. In this paper, based on the experimental background of vehicle-borne synthetic aperture radar (SAR), the upper computer control software is designed and implemented around data acquisition, system self-test and wipe angle estimation. In this paper, the following research work is carried out: firstly, through the analysis of radar system requirements and technical indicators, the work flow of the system is given and the software development scheme is designed. Then the principle of self-test and wipe angle estimation is simulated by Matlab. Then the upper computer control software is developed by using the object-oriented programming idea, the software structure and communication protocol are designed, the PCIe driver based on WinDriver is written, and the functions of system self-check and wipe angle estimation are realized. Finally, the system joint modulation and field experiment of vehicle synthetic aperture radar imaging system are completed. The upper computer control software of vehicle synthetic aperture radar (SAR) studied in this paper is verified by radar test, which meets the design index, has more perfect function, and ensures the expansion of subsequent function in software design. It has high practicability.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN958

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