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需求文档_v0.1
系统介绍
设计信号分析软件，可以支持从文件读入信号，能显示信号的时域波形图、瀑布图、星座图和频谱图，可调节播放速度和缩放横轴（时间）
开发方案
- C#调用matlab
系统面向用户
- 电路工程师、学生
系统功能需求
采集模块
- 需求：程序读入时域信号
- 基础方案：从csv、coe和txt等格式文件内读入信号
- 提升方案：支持从文件读取信号，支持读取串口传入的数字信号
信号分析模块
- 需求：对时域信号进行频谱分析、功率分析和IQ解调
- 基础方案：采用FFT算法获取信号频谱，使用contour函数得到瀑布图，依照PSK原理对信号进行IQ解调
- 提升方案：添加BPSK、QPSK等多种模式，直接输出星座图中信号解调结果
显示模块
- 需求：显示四种模式下的波形图
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