Solved: “The unsigned image’s hash is not allowed (DB)”
原因是 Secure Boot 的锅 In Hyper-V Manager, make sure the virtual machine is turned off. Select the virtual machine.Right click and select “Settings”Go to “Security”Uncheck “Enable Secure Boo…
一、Parseval’s theorem介绍
帕塞瓦尔定理Parseval’s theorem表明了信号的能量在时域和频域相等。 ∫ − ∞ ∞ ∣ f ( t ) ∣ 2 d t 1 2 π ∫ − ∞ ∞ ∣ F ( ω ) ∣ 2 d ω ∫ − ∞ ∞ ∣ F ^ ( f ) ∣ 2 d f \int_{-\infty}^{\infty}|f(t)|^{2} \mathrm{~d} t\frac…