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我们定义总谐波失真（total harmonic distortion, THD）为： \mathrm{THD}=10\times\log\left(\frac{h_2^2+h_3^2+\cdots}{h_1^2}\right) \tag{11} 上式计算出 …

用总谐波失真(thd)来表示各次谐波的大小，在供电领域，谐波的大小特指电流的大小。 谐波失真的危害 供电厂产生的电流波形是 基波的正弦 ，而其他 高次谐波 的波形是供电厂 无法 产生的， …

2023年9月1日 · TotalHarmonicDistortion (THD)是衡量信号失真的指标，用于评估经过非线性系统处理后产生的谐波成分。 THD以基频和谐波能量的比例表示，低THD表示高质量音频设备。 …

2024年12月20日 · Several models on this list have earned an outstanding 4.5-star rating and PCMag's Editors' Choice award, but the Hisense U8N is the best TV overall in terms of bang …

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The Day of the Jackal is a British spy thriller television series, based on the Frederick Forsyth novel and 1973 film of the same name. It stars Eddie Redmayne and Lashana Lynch. It is …

6 天之前 · Here's a look at Friday's slate of ACC tournament games, including times and TV channels: ACC tournament games today. Here’s a look at the ACC Tournament schedule for …