Which of the following is not the phase of Analog-to-digital conversion? ( )
Anti-aliasing filter
B. Sample and hold
C. Quantization
D. Zero-order hold
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The complex frequency's real part helps describe a response to AC signals.
A. 对
B. 错
The length of the sampling interval is the same as the sampling frequency.
A. 对
B. 错
Most digital systems are combinational , that is they have states, and the outputs depend on the present state.
A. 对
B. 错
An integrator can act as a filter.
A. 对
B. 错