Algorithms of insar data processing are also key factors , which related directly to the quality of dem and differential interferometric products , so it is necessary to develop advanced data processing algorithms and evaluate the accuracy of sar interferometry 數(shù)據(jù)處理算法的優(yōu)劣,直接影響到所提取的dem及差分干涉測量產(chǎn)品的質(zhì)量。因此,發(fā)展更為完善的數(shù)據(jù)處理算法及對干涉測量的誤差進行評估,是目前干涉測量研究的必需,也是干涉sar遙感創(chuàng)新研究的需要。
At the same time , the agility and function increase because of the application of fpga . the appliance of high speed multilayer board technology assures the quality of circuit board . this data processing system can apply to other electronic system , and have no need of large adjustment . this thesis also introduces the appliance in project of embedded system , and the system gathes and processes video frequency image data so as to analyse and process image precisely . this establishes a firm basement for the further realization of our advanced data process technology . the main reserch contents are as follows : first , the actuality currently of digital signal processing is discussed in detail , the technology of embedded and dsp and arithmetic of image process are comprehensively studied , which provide theoretic bases for establishing experimental project used the methods of introduced justly 為進一步實現(xiàn)我所的數(shù)字圖象處理技術(shù)向更高精度更快速度的方向發(fā)展打下了基礎(chǔ)。本論文的主要工作如下:首先,在綜合分析了當前數(shù)字信號處理的現(xiàn)狀后,對嵌入式技術(shù)和dsp技術(shù)以及數(shù)字圖象處理算法進行了全面的研究,為本系統(tǒng)的設(shè)計完成提供了理論基礎(chǔ)。其次,實現(xiàn)了整個硬件系統(tǒng)的設(shè)計,包括確定功能,選擇器件,設(shè)計制作電路板,調(diào)試電路,并設(shè)計軟件,就整個系統(tǒng)在圖象數(shù)據(jù)處理中的應(yīng)用完成了對高速信號的處理。