Howtosignalprocessing
- What is frequency spectrum of sine wave?
- Can a signal have different frequencies?
- What frequencies would show up in a spectrum analysis of the modulated wave?
- In which frequency spectrum is continuous?
What is frequency spectrum of sine wave?
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 + …)
Can a signal have different frequencies?
Industrial Wireless Technology and Planning
Radio frequency (RF) signals have two common measurements: frequency and “strength.” Many signals are a mixture of different frequencies and different strengths. Frequency is measured in Hertz (Hz), meaning 1 cycle per second.
What frequencies would show up in a spectrum analysis of the modulated wave?
Both the negative and positive frequency components of the modulating signal f(t) appear as positive frequencies in the spectrum of the modulated signal y(t). It is also seen that the bandwidth of f(t) is doubled in the spectrum of the modulated signal when this type of modulation is employed. f(t) 1 8 cos(26 c t) .
In which frequency spectrum is continuous?
A continuous spectrum consists of NOISE components. The spectrum of a sound may be determined by a SOUND ANALYSER or by FOURIER ANALYSIS and is distributed over the audible range (20 to 20,000 Hz). A partial spectrum is also known as a line spectrum, where discrete frequencies are present.
