全国大学生电子设计竞赛国2报告以及代码最终版简易频率特性测试仪(E题)

上传者: flolida | 上传时间: 2026-04-10 21:41:48 | 文件大小: 10.46MB | 文件类型: ZIP
简易频率特性测试仪:本系统是基于零中正交解调原理,以STM32单片机和可编程逻辑器件FPGA构成的最小系统为控制核心,由正交扫频信号源模块、以AD835为核心的乘法器模块、以OP07芯片为核心的低通滤波器模块,以及以ADS805芯片为核心的ADC模块组成。其中正交扫频信号源以DDS芯片AD9854为核心,生成两路正交正弦信号,信号频率在1MHz~40MHz的范围内变化,扫频步进最小可达100kHz。

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