https://multipleriver.github.io/tags/signal-fitting/Recent content in Signal Fitting on River's BlogHugozh-CNTue, 28 Apr 2026 00:00:00 +0000https://multipleriver.github.io/posts/%E9%82%BB%E5%80%BC%E5%B9%B3%E5%9D%87-%E5%BE%AA%E7%8E%AF%E7%A7%BB%E4%BD%8D-%E7%89%B9%E5%BE%81%E5%88%86%E8%A7%A3-%E5%82%85%E9%87%8C%E5%8F%B6%E5%9F%BA%E5%92%8C%E4%BD%8E%E9%80%9A%E6%BB%A4%E6%B3%A2/Tue, 28 Apr 2026 00:00:00 +0000https://multipleriver.github.io/posts/%E9%82%BB%E5%80%BC%E5%B9%B3%E5%9D%87-%E5%BE%AA%E7%8E%AF%E7%A7%BB%E4%BD%8D-%E7%89%B9%E5%BE%81%E5%88%86%E8%A7%A3-%E5%82%85%E9%87%8C%E5%8F%B6%E5%9F%BA%E5%92%8C%E4%BD%8E%E9%80%9A%E6%BB%A4%E6%B3%A2/<h1 id=""><a href="#" class="heading-anchor" aria-label="Link to this section" ><svg class="h-4 w-4" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"/><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"/></g></svg></a></h1><p>本文框架性内容来自LiiiSTEM社区每周一题中相关内容 (特别鸣谢: 陈子豪). 本文以更自然的思路加以叙述, 同时对各步骤均作出详细证明, 考察相关操作的各项特性, 并在北太天元平台仿真验证, 提出算子改进方法.</p>https://multipleriver.github.io/posts/%E6%B5%85%E8%AF%81%E6%96%B9%E6%B3%A2%E6%8B%9F%E5%90%88%E4%B8%AD%E7%9A%84%E6%8C%AF%E9%93%83/Tue, 14 Apr 2026 00:00:00 +0000https://multipleriver.github.io/posts/%E6%B5%85%E8%AF%81%E6%96%B9%E6%B3%A2%E6%8B%9F%E5%90%88%E4%B8%AD%E7%9A%84%E6%8C%AF%E9%93%83/<h2 id="描述">描述<a href="#%e6%8f%8f%e8%bf%b0" class="heading-anchor" aria-label="Link to this section" ><svg class="h-4 w-4" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"/><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"/></g></svg></a></h2><p>在调试ADC、TIA等高速信号链时，如果你用示波器去观察方波信号的跳变沿，往往会看到边缘处存在烦人的振铃现象（Ringing）。我们常以为这是电路寄生参数或是带宽受限导致的非理想效应，但其实，即便在纯粹的数学世界里，用完美的正弦波去拟合方波，这种过冲也是命中注定的。</p>