宽带高速光电信号分析仪软件开发及测试
发布时间：2018-10-05 09:55
【摘要】：为了更好地维护日益复杂的光纤通信系统,监测光信号的时域和频域特征,开发具有时域和频域测量功能的宽带高速光电信号分析仪是解决该问题的有效途径。然而,与仪器密切相关的分析软件是人机交互的媒介,软件的好坏直接决定了仪器性能的优劣。因此,基于虚拟仪器和LabVIEW软件开发平台将光信号的时域和频域测量方法集成,开发出稳定可靠、界面友好的分析软件具有重要意义。本论文首先介绍了宽带高速光电信号分析仪的系统组成,并阐述了该仪器的关键技术,包括线性光采样技术和基于受激布里渊散射的光谱测量技术。然后,利用模块化的编程思想,围绕宽带高速光电信号分析仪软件的需求分析,对软件进行了模块划分和功能描述。接着,对各个模块进行详细设计与实现。对于时域分析模块,本论文主要实现了数据采集、星座图绘制、星座图参数的计算以及时域界面和框架设计,重点研究了眼图重构算法。对于频域分析模块,本论文主要实现了多曲线显示、标记与区域分析、缩放与平移以及频域界面和框架设计,重点研究了光谱数据采集与逐点显示,提出了硬件采集与软件显示的并行处理方案。同时,实现了数据导入导出功能。最后,搭建测试实验平台,对软件的功能以及性能进行测试,验证了软件的正确性、稳定性以及在时域和频域测量上所表现的优异性能。
[Abstract]:In order to better maintain the increasingly complex optical fiber communication system and monitor the characteristics of optical signal in time and frequency domain, it is an effective way to solve this problem by developing a wideband high speed photoelectric signal analyzer with time domain and frequency domain measurement functions. However, the analysis software which is closely related to the instrument is the medium of human-computer interaction, and the quality of the software directly determines the performance of the instrument. Therefore, it is of great significance to integrate the time domain and frequency domain measurement methods of optical signals based on virtual instrument and LabVIEW software development platform, and to develop a stable and reliable analysis software with friendly interface. This paper first introduces the system composition of broadband high-speed photoelectric signal analyzer, and describes the key technologies of the instrument, including linear optical sampling technology and spectral measurement technology based on stimulated Brillouin scattering. Then, the modular programming idea is used to analyze the requirement of broadband high-speed photoelectric signal analyzer software, and the module division and function description of the software are carried out. Then, each module is designed and implemented in detail. For the time domain analysis module, this paper mainly realizes the data acquisition, constellation map drawing, constellation parameter calculation, time domain interface and frame design, and focuses on the eye image reconstruction algorithm. For the frequency domain analysis module, this paper mainly realizes multi-curve display, marking and area analysis, scaling and translation, frequency domain interface and frame design, and focuses on spectral data acquisition and point-by-point display. The parallel processing scheme of hardware acquisition and software display is proposed. At the same time, the function of data import and export is realized. Finally, a test platform is built to test the function and performance of the software, which verifies the correctness and stability of the software and its excellent performance in time domain and frequency domain measurement.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN929.11;TP311.52
本文编号：2252944
[Abstract]:In order to better maintain the increasingly complex optical fiber communication system and monitor the characteristics of optical signal in time and frequency domain, it is an effective way to solve this problem by developing a wideband high speed photoelectric signal analyzer with time domain and frequency domain measurement functions. However, the analysis software which is closely related to the instrument is the medium of human-computer interaction, and the quality of the software directly determines the performance of the instrument. Therefore, it is of great significance to integrate the time domain and frequency domain measurement methods of optical signals based on virtual instrument and LabVIEW software development platform, and to develop a stable and reliable analysis software with friendly interface. This paper first introduces the system composition of broadband high-speed photoelectric signal analyzer, and describes the key technologies of the instrument, including linear optical sampling technology and spectral measurement technology based on stimulated Brillouin scattering. Then, the modular programming idea is used to analyze the requirement of broadband high-speed photoelectric signal analyzer software, and the module division and function description of the software are carried out. Then, each module is designed and implemented in detail. For the time domain analysis module, this paper mainly realizes the data acquisition, constellation map drawing, constellation parameter calculation, time domain interface and frame design, and focuses on the eye image reconstruction algorithm. For the frequency domain analysis module, this paper mainly realizes multi-curve display, marking and area analysis, scaling and translation, frequency domain interface and frame design, and focuses on spectral data acquisition and point-by-point display. The parallel processing scheme of hardware acquisition and software display is proposed. At the same time, the function of data import and export is realized. Finally, a test platform is built to test the function and performance of the software, which verifies the correctness and stability of the software and its excellent performance in time domain and frequency domain measurement.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN929.11;TP311.52
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