: Signal Distortion Measurement Device (信号失真度测量装置).
The garbled text you provided, "2021 群星 дёÂ國夢之聲·我們的жÂЊз¬¬дё‰еÂЈ 第12жњџ," is a common encoding error (mojibake) that translates to (2021 Spring National Undergraduate Electronics Design Contest TI Cup Questions).
You can download the 2021 competition materials and technical write-ups from several technical repositories and official archives: Where to Find the Files : Sites like
The "12 zip" likely refers to a compressed archive containing all 12 problem sets (A through L) or winning source code solutions from that year's competition. Where to Find the Files
: Sites like EEWorld and Elecfans provide "award-winning project collections" (获奖作品汇编) that often match your "12 zip" description. Key Problem Sets Included in 2021 Where to Find the Files : Sites like
: Fire Extinguishing Unmanned Aerial Vehicle (智能送药小车 / 植保无人机).
: Periodic Signal Waveform Recognition and Parameter Measurement (周期信号波形识别及参数测量装置). Where to Find the Files : Sites like
: Developers often share their specific solutions (especially for popular tasks like Problem A: Signal Distortion Measurement) on platforms like GitHub or technical blogs like CSDN .