SPWM中的S是Sinusoidal的简写。
SPWM中的S是Sinusoidal的简写。
For the sinusoidal steady-state circuit, ， the real power absorbed by 5 W resistor is 10W ， the power factor of the circuit is:/ananas/latex/p/149319
For the sinusoidal steady-state circuit, ， the real power absorbed by 5 W resistor is 10W ， the power factor of the circuit is:/ananas/latex/p/149319
The simple high frequency sinusoidal wave which contains no information of its own is（ ） A: modulation B: general function C: carrier D: transmission
The simple high frequency sinusoidal wave which contains no information of its own is（ ） A: modulation B: general function C: carrier D: transmission
A [tex=2.357x1.0]7qflA3rEKmWSipDA3jV3Ug==[/tex] sinusoidal signal is sampled at [tex=2.857x1.0]sSdkgCWSu/vvQQkWRfK5xw==[/tex] and 128 samples are collected and used to compute the 128-point DFT of the signal. What is the time duration in seconds of the collected samples?
A [tex=2.357x1.0]7qflA3rEKmWSipDA3jV3Ug==[/tex] sinusoidal signal is sampled at [tex=2.857x1.0]sSdkgCWSu/vvQQkWRfK5xw==[/tex] and 128 samples are collected and used to compute the 128-point DFT of the signal. What is the time duration in seconds of the collected samples?
The transfer function G(s) of a system is [img=101x44]1803b532a91895e.png[/img]For the sinusoidal input r(t)=3sin2t, the steady-state output is equal to ( ). A: [img=166x47]1803b532b25dc7d.png[/img] B: [img=166x47]1803b532bee8afe.png[/img] C: [img=148x25]1803b532c710784.png[/img] D: [img=68x47]1803b532d264acf.png[/img]
The transfer function G(s) of a system is [img=101x44]1803b532a91895e.png[/img]For the sinusoidal input r(t)=3sin2t, the steady-state output is equal to ( ). A: [img=166x47]1803b532b25dc7d.png[/img] B: [img=166x47]1803b532bee8afe.png[/img] C: [img=148x25]1803b532c710784.png[/img] D: [img=68x47]1803b532d264acf.png[/img]
During ADC conversion, a sinusoidal signal with amplitude being 1 is input and the ADC operates at full range. When the quantization word length b = 8bits(one symbol bit and seven data bits), the SNR of the quantization process is approximately A: 44dB B: 50dB C: 56dB D: 62dB
During ADC conversion, a sinusoidal signal with amplitude being 1 is input and the ADC operates at full range. When the quantization word length b = 8bits(one symbol bit and seven data bits), the SNR of the quantization process is approximately A: 44dB B: 50dB C: 56dB D: 62dB
The graph of a sinusoidal wave traveling to the positive x-axis at beginning is shown in the figure. What is the initial phase angle of the wave ?[img=339x207]1803a1d411226a4.jpg[/img] A: [img=11x39]1803a1d42860b72.png[/img] B: [img=27x39]1803a1d431d1cbe.png[/img] C: [img=11x39]1803a1d43ab87a0.png[/img] D: [img=27x39]1803a1d44335ece.png[/img]
The graph of a sinusoidal wave traveling to the positive x-axis at beginning is shown in the figure. What is the initial phase angle of the wave ?[img=339x207]1803a1d411226a4.jpg[/img] A: [img=11x39]1803a1d42860b72.png[/img] B: [img=27x39]1803a1d431d1cbe.png[/img] C: [img=11x39]1803a1d43ab87a0.png[/img] D: [img=27x39]1803a1d44335ece.png[/img]