A continuous-time (C-T) periodic signal is shown below, then the components of the signal include ( )[img=634x330]180337809123d5d.bmp[/img]
A: direct-current (DC) and cosine components of all harmonics
B: DC and sine components of all harmonics
C: DC and sine components of odd harmonics
D: DC and cosine components of odd harmonics
A: direct-current (DC) and cosine components of all harmonics
B: DC and sine components of all harmonics
C: DC and sine components of odd harmonics
D: DC and cosine components of odd harmonics
举一反三
- A continuous-time (C-T) periodic signal is shown below, then the components of the signal include ( )[img=634x330]17de808c88522e2.bmp[/img] A: direct-current (DC) and cosine components of all harmonics B: DC and sine components of all harmonics C: DC and sine components of odd harmonics D: DC and cosine components of odd harmonics
- The waveform of a continuous-time signal is shown below. What frequency components does the signal have?[img=565x143]18033778cdfa035.png[/img] A: Cosine components for all harmonics B: Sine components for all harmonics C: Sine components for odd harmonics D: Cosine components for odd harmonics
- Under normal circumstances, the primary urine in the cavity of the glomerular capsule contains:() A: All plasma components B: All blood components C: Plasma components other than macromolecular proteins D: All plasma components other than organic matters E: All blood components other than erythrocytes
- ¡All the components on the wafer are called integrated elements.
- The boundary condition of the electric field intensity of steady electric fields is A: the normal components are continuous. B: the tangential component are continuous. C: if there is no current at the interface, the tangential components are continuous. D: both the tangential and normal components are continuous.