Howtosignalprocessing
- How do you know what sampling frequency to use?
- What is the frequency at which the signal should be sampled to avoid aliasing?
- What is the minimum frequency at which the signal should be sampled?
- How does sampling frequency affect signal?
How do you know what sampling frequency to use?
The sampling frequency should be at least double the maximum frequency. If your measurement is done in the pass-band (2.38 GHz-2.46 GHz), so the maximum frequency is 2.46 GHz which means that the sampling frequency should be at least 2x2. 46 GHz = 4.92 GHz.
What is the frequency at which the signal should be sampled to avoid aliasing?
According to the Shannon Sampling Theorem, use a sampling frequency at least twice the maximum frequency component in the sampled signal to avoid aliasing.
What is the minimum frequency at which the signal should be sampled?
The sampling theorem states that a real signal, f(t), which is band-limited to f Hz can be reconstructed without error from samples taken uniformly at a rate R > 2f samples per second. This minimum sampling frequency, fs = 2f Hz, is called the Nyquist rate or the Nyquist frequency (6).
How does sampling frequency affect signal?
Sampling rate determines the sound frequency range (corresponding to pitch) which can be represented in the digital waveform. The range of frequencies represented in a waveform is often called its bandwidth.
