【摘要】：海洋鹽度對熱帶海洋的熱力、動力過程和�！獨怦詈舷到y(tǒng)的影響非常明顯。利用星載微波輻射計對海洋鹽度進行遙感測量是非常有前景的方法。本論文以星載主被動聯(lián)合探測鹽度計為背景，研究設(shè)計并實現(xiàn)了一個綜合孔徑輻射計的數(shù)字系統(tǒng)，深入討論了該系統(tǒng)中輻射計部分的數(shù)據(jù)采集、數(shù)據(jù)傳輸、相關(guān)處理、時鐘控制四個部分。 本文首先簡要介紹了主被動聯(lián)合探測鹽度計的應(yīng)用背景以及鹽度測量和綜合孔徑輻射計的相關(guān)理論基礎(chǔ)。在理論的基礎(chǔ)上對綜合孔徑輻射計的數(shù)字系統(tǒng)進行了進一步的分割，總共分為五個板卡：數(shù)據(jù)采集板、慢速采集板、相關(guān)處理板、數(shù)據(jù)傳輸板和時鐘控制板。詳細介紹了各板卡的方案設(shè)計細節(jié)，包括電路原理設(shè)計、芯片選型、傳輸協(xié)議設(shè)計、相關(guān)算法設(shè)計等。對二級相關(guān)算法、時鐘電路設(shè)計、多通道數(shù)據(jù)采集電路設(shè)計等重點設(shè)計進行了詳細的闡述，，為工程實現(xiàn)提供了可靠的設(shè)計。 工程實現(xiàn)中針對數(shù)據(jù)采集板多通道數(shù)據(jù)采集的布局布線及電源布置、傳輸板的硬件設(shè)計原則、二級相關(guān)算法、采樣時鐘生成電路等關(guān)鍵技術(shù)進行了詳細的描述與分析，并給出了最終的解決方案。 最后本文對已經(jīng)實現(xiàn)的整個數(shù)字系統(tǒng)各模塊進行了功能測試，測試結(jié)果均滿足系統(tǒng)要求。文本的研究成果，已經(jīng)在某科學(xué)工程中得到應(yīng)用。
[Abstract]:The influence of ocean salinity on the thermal and dynamic processes of the tropical ocean and the sea-gas coupling system is very obvious. Using the satellite-borne microwave radiometer to measure the ocean salinity is a very promising method. In this paper, the data acquisition, data transmission, correlation processing and clock control of the radiometer part in the system are discussed. In this paper, the application background of the main passive combined detection salinometer and the relevant theoretical basis of the salinity measurement and the synthetic aperture radiometer are briefly introduced in this paper. Based on the theory, the digital system of the synthetic aperture radiometer is further divided into five boards: the data acquisition board, the slow collecting board, the relevant processing board, the data transmission board and the clock control. The design details of each board are introduced in detail, including circuit principle design, chip type selection, transmission protocol design and relevant algorithm design. The key design of the two-level correlation algorithm, the clock circuit design and the multi-channel data acquisition circuit design is described in detail. The paper describes and analyzes the key technologies such as layout and power supply arrangement, hardware design principle, secondary correlation algorithm, sampling clock generation circuit and other key technologies of the data acquisition board multi-channel data acquisition in the project implementation, and gives the final solution In the end, the whole digital system has been tested and the test results are full. The requirements of the foot system. The research results of the text are already in a scientific project
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P715.7

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