综合孔径辐射计数字系统的研究与设计
发布时间：2019-04-08 10:08
【摘要】：海洋盐度对热带海洋的热力、动力过程和海—气耦合系统的影响非常明显。利用星载微波辐射计对海洋盐度进行遥感测量是非常有前景的方法。本论文以星载主被动联合探测盐度计为背景，研究设计并实现了一个综合孔径辐射计的数字系统，深入讨论了该系统中辐射计部分的数据采集、数据传输、相关处理、时钟控制四个部分。 本文首先简要介绍了主被动联合探测盐度计的应用背景以及盐度测量和综合孔径辐射计的相关理论基础。在理论的基础上对综合孔径辐射计的数字系统进行了进一步的分割，总共分为五个板卡：数据采集板、慢速采集板、相关处理板、数据传输板和时钟控制板。详细介绍了各板卡的方案设计细节，包括电路原理设计、芯片选型、传输协议设计、相关算法设计等。对二级相关算法、时钟电路设计、多通道数据采集电路设计等重点设计进行了详细的阐述，，为工程实现提供了可靠的设计。 工程实现中针对数据采集板多通道数据采集的布局布线及电源布置、传输板的硬件设计原则、二级相关算法、采样时钟生成电路等关键技术进行了详细的描述与分析，并给出了最终的解决方案。 最后本文对已经实现的整个数字系统各模块进行了功能测试，测试结果均满足系统要求。文本的研究成果，已经在某科学工程中得到应用。
[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
【学位授予单位】：北京理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715.7
本文编号：2454489
[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
【学位授予单位】：北京理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715.7
【参考文献】
相关期刊论文 前4条
1 王飞鹏,吴季;综合孔径微波辐射计二阶量化数字相关器研究[J];电子学报;2002年03期
2 闫敬业,吴季,张升伟,姜景山;合成孔径辐射计多路高阶数字复相关器方案研究[J];电子学报;2003年09期
3 潘碑;苏卫国;;锁相频率源混频信号的相位噪声分析[J];固体电子学研究与进展;2014年05期
4 贾树恒;豆根生;袁超;;高速互连信号串扰的分析及优化[J];科技信息;2010年05期
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