Howtosignalprocessing
- What is the time period of square wave generated by square command?
- How do you find the frequency of a square wave?
- What is the relation between sampling frequency and signal frequency?
- What is the FFT of a square wave?
What is the time period of square wave generated by square command?
x = square( t ) generates a square wave with period 2π for the elements of the time array t . square is similar to the sine function but creates a square wave with values of –1 and 1.
How do you find the frequency of a square wave?
Here, T is the period of the square wave and f is its frequency, which are related by the equation f = 1/T.
What is the relation between sampling frequency and signal frequency?
The sampling rate must be equal or superior to the double of the highest frequency or the signal .
What is the FFT of a square wave?
In the frequency domain, the overall average of a signal is its content at DC or 0Hz -- so that's why there's a peak at 0Hz. The FFT of a square wave that is centered on 0V has energy at every odd harmonic, starting at 1.
