基于USB3.0接口的高速数据传输技术研究

发布时间：2018-03-27 14:12

本文选题：雷达试验　切入点：USB3.0　出处：《南京理工大学》2014年硕士论文

【摘要】：根据复杂环境下雷达信号和数据传输要求,以计算机技术为基础,突破采集、分析与回放流程中的高速数据传输性能瓶颈,以USB3.0规范为基础,实现雷达数据高速实时采集与回放设备与主控计算机对接,完成海量数据的高速传输,一方面保证采集数据高速进机实现数据快速分析,另一方面保证回放数据高速注入到回放设备实现算法验证,从而为开展雷达目标回波信号特性研究、雷达动态性能测试分析和雷达信号处理新算法研究提供一个有效的工具和手段；同时数据采集设备与计算机通过USB3.0接口的互联,大大增强了数据采集回放设备的数据分析能力,使得其应用范围更广,并且由于USB3.0接口的通用性,使得数据采集与回放设备适应性更强。本论文研究了面向雷达数据采集系统的高速海量数据传输的实现思路和架构,提出了USB3.0接口高速传输数据的设想,对所需要解决的问题进行原理和技术途径进行研究,并用VHDL程序实现了USB3.0接口Device控制器,实现了基于USB3.0的高速传输,该传输接口可用于雷达试验系统,实现对雷达前端高速ADC采集数据流的实时传输,并利用PC机的强大的处理和分析性能,可实现对回波数据进行后续处理和仿真分析。本课题解决了USB3.0接口控制、雷达高速数据传输与存储等关键问题,经试验验证,采集数据最大传输速率可达300MBytes/s,能够满足目前大部分高分辨率雷达试验数据传输的需求。
[Abstract]:According to the requirements of radar signal and data transmission in complex environment, based on computer technology, the bottleneck of high-speed data transmission in the process of acquisition, analysis and playback is broken, and the performance of high-speed data transmission is based on USB3.0 specification. The high-speed real-time acquisition and playback of radar data and the docking of the main control computer to complete the high-speed transmission of massive data, on the one hand, ensure the high-speed data acquisition and data analysis, On the other hand, to ensure the high-speed injection of playback data into the playback equipment to achieve algorithm verification, so as to carry out the radar target echo signal characteristics research, The research of radar dynamic performance test and new algorithm of radar signal processing provides an effective tool and means, at the same time, the interconnection of data acquisition equipment and computer through USB3.0 interface greatly enhances the data analysis ability of data acquisition and playback equipment. Because of the generality of USB3.0 interface, the adaptability of data acquisition and playback equipment is stronger. In this paper, the realization idea and structure of high-speed mass data transmission for radar data acquisition system are studied, and the assumption of high-speed data transmission in USB3.0 interface is put forward, and the principle and technical approach of the problems that need to be solved are studied. The USB3.0 interface Device controller is implemented with VHDL program, and the high speed transmission based on USB3.0 is realized. The transmission interface can be used in the radar test system to realize the real-time transmission of the high speed ADC data stream collected from the front end of the radar. With the powerful processing and analysis performance of PC, the echo data can be processed and simulated. The key problems of USB3.0 interface control, radar high-speed data transmission and storage are solved in this paper. It is verified by experiments that the maximum transmission rate of collected data can reach 300MBytes / s, which can meet the needs of most high-resolution radar test data transmission.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN957.52

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