發(fā)布時(shí)間：2018-11-07 18:23

【摘要】：無(wú)人機(jī)測(cè)繪是遙感領(lǐng)域用于地形測(cè)繪的新興技術(shù)，其具有機(jī)動(dòng)靈活、高效快速、精細(xì)準(zhǔn)確、成本較低的特點(diǎn)。近年來(lái)，隨著通信技術(shù)和傳感器技術(shù)的不斷發(fā)展，無(wú)人機(jī)測(cè)繪系統(tǒng)也日漸成熟，，在測(cè)繪領(lǐng)域發(fā)揮著愈加重要的作用。但隨著測(cè)繪圖像分辨率提高，測(cè)繪任務(wù)增多，測(cè)繪圖像的數(shù)據(jù)量在不斷擴(kuò)大。因此，高效可靠的圖像壓縮存儲(chǔ)系統(tǒng)的研制具有至關(guān)重要的現(xiàn)實(shí)意義。 本文針對(duì)某測(cè)繪無(wú)人機(jī)中測(cè)繪圖像壓縮存儲(chǔ)系統(tǒng)的研制任務(wù)要求，以FPGA為主要控制器件，完成了整個(gè)圖像壓縮存儲(chǔ)系統(tǒng)的設(shè)計(jì)。文中首先介紹了該系統(tǒng)所采用的圖像壓縮算法(SPIHT算法)和存儲(chǔ)設(shè)備(CF卡)，并將算法壓縮存儲(chǔ)性能與其他算法以及將設(shè)備與其他存儲(chǔ)設(shè)備進(jìn)行了簡(jiǎn)單對(duì)比。然后，在此基礎(chǔ)上實(shí)現(xiàn)了該系統(tǒng)的FPGA邏輯設(shè)計(jì)，并給出了系統(tǒng)的測(cè)試結(jié)果。該系統(tǒng)功能和性能均滿足任務(wù)要求，現(xiàn)已應(yīng)用于相關(guān)的機(jī)載平臺(tái)。
[Abstract]:Unmanned aerial vehicle (UAV) mapping is a new technology in the field of remote sensing, which has the characteristics of flexibility, high efficiency, high speed, precision and low cost. In recent years, with the development of communication technology and sensor technology, UAV surveying and mapping system is becoming more and more mature, which plays an increasingly important role in the field of surveying and mapping. However, with the improvement of the resolution of surveying and mapping image and the increase of surveying and mapping tasks, the amount of surveying and mapping image data is expanding. Therefore, the development of efficient and reliable image compression storage system is of vital practical significance. According to the research and development task of the image compression storage system in a surveying and mapping UAV, the design of the whole image compression storage system is completed with FPGA as the main controller. In this paper, the image compression algorithm (SPIHT algorithm) and storage device (CF card) used in the system are introduced, and the compression storage performance of the algorithm is compared with other algorithms, and the device is compared with other storage devices. Then, the FPGA logic design of the system is realized, and the test results are given. The function and performance of the system meet the requirements of the mission, and have been applied to the relevant airborne platform.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P231;TP391.41

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本文編號(hào)：2317208