Real signal from I,Q, sample rate and center frequency

1. How do you calculate sampling rate of a signal?
2. What is the equation for the sampled signal?
3. How do you choose a sampling rate based on frequency?
4. What is IQ in RF?

How do you calculate sampling rate of a signal?

The sampling frequency or sampling rate, f_s, is the average number of samples obtained in one second, thus f_s = 1/T. Its unit is sample per second or hertz e.g. 48 kHz is 48,000 samples per second.

What is the equation for the sampled signal?

The process of sampling a time-varying signal. A continuous time-varying 1-D signal is sampled by narrow sampling pulses at a regular rate f_r = 1/T, which must be at least twice the bandwidth of the signal.

How do you choose a sampling rate based on frequency?

The Nyquist theorem – choosing the right sample rate

The Nyquist theorem is part of the fundamentals of signal conditioning. Based on that, you must choose the sample rate at least twice as high as the maximum frequency in the signal.

What is IQ in RF?

Quadrature signals, also called IQ signals, IQ data or IQ samples, are often used in RF applications. They form the basis of complex RF signal modulation and demodulation, both in hardware and in software, as well as in complex signal analysis.