Howtosignalprocessing
- What if sampling rate is too high?
- What is the sampling rate of bandpass sampling?
- What is the highest sampling frequency?
- What is a high Q bandpass filter?
What if sampling rate is too high?
If the rate of samples is too high the system may not be able to process them fast enough - it runs out of processing time.
What is the sampling rate of bandpass sampling?
The minimum sampling frequency for a 2-GHz bandpass signal with a bandwidth of 20 MHz is only about 40 MHz, as opposed to twice the highest frequency of 4 GHz.
What is the highest sampling frequency?
44,100 Hz (44.1 kHz) is the sampling rate of audio CDs giving a 20 kHz maximum frequency. 20 kHz is the highest frequency generally audible by humans, so making 44,100 Hz the logical choice for most audio material.
What is a high Q bandpass filter?
Q factor. A band-pass filter can be characterized by its Q factor. The Q-factor is the reciprocal of the fractional bandwidth. A high-Q filter will have a narrow passband and a low-Q filter will have a wide passband. These are respectively referred to as narrow-band and wide-band filters.
