Howtosignalprocessing
- How is the bandwidth of a signal related to its spectrum?
- What is the spectrum of the signal?
- How do you find the frequency spectrum of a signal?
- What is FFT spectrum?
How is the bandwidth of a signal related to its spectrum?
The spectrum of a signal is the range of frequencies contained in the signal. The bandwidth is the difference between the lowest and highest frequency in the spectrum. It is therefore the width of the spectrum and is a measure of the information carrying capacity of the signal.
What is the spectrum of the signal?
The signal spectrum describes a signal's magnitude and phase characteristics as a function of frequency. The system spectrum describes how the system changes signal magnitude and phase as a function of frequency. For example, At the lower frequencies, below around 80 Hz, the magnitude spectrum is 1.0.
How do you find the frequency spectrum of a signal?
Frequency spectrum of a signal is the range of frequencies contained by a signal. For example, a square wave is shown in Fig. 3.5A. It can be represented by a series of sine waves, S(t) = 4A/π sin(2πft) + 4A/3π sin(2π(3f)t) + 4A/5π sin(2π(5f)t + …)
What is FFT spectrum?
The resulting digital time record is then mathematically transformed into a frequency spectrum using an algorithm known as the Fast Fourier Transform, or FFT. The FFT is simply a clever set of operations which implements Fourier's theorem. The resulting spectrum shows the frequency components of the input signal.
