If the asymptote of magnitude-frequency characteristic in low-frequency band of minimum-phase system is a straight line with slope of −20dB / dec, then the system has ________
A: one integral element
B: two integral elements
C: three integral elements
D: no integral element
A: one integral element
B: two integral elements
C: three integral elements
D: no integral element
举一反三
- Phase lag compensation can reduce the cut-off frequency of the system after compensation by means of_____ in the intermediate and high-frequency band of the original system, so as to obtain sufficient phase margin with the help of the phase at this frequency of the original system. A: magnitude attenuation B: phase lag C: magnitude increase D: magnitude unchanged
- The Duhamel integral is also known as the ( ) integral ?
- integral
- 智慧职教: How many elements has a standard number system? How many Numbers are there for each element?
- The belief that man is an integral part of nature comes from the theroy of ______. A: the five elements B: the Holistic View C: the Yin and Yang D: the Qi