Spectral analysis and signal bandwidth, Electrical Engineering

Assignment Help:

Q. Show Spectral Analysis and Signal Bandwidth?

Spectral analysis is based on the fact that a sinusoidal waveform is completely characterized by three quantities: amplitude, phase, and frequency. By plotting amplitude and phase as a function of frequency f(= ω/2π = 1/T), the frequency-domain picture conveys all the information, including the signal's bandwidth and other significant properties about the signal that consists entirely of sinusoids. The two plots together (amplitude versus frequency and phase versus frequency) constitute the line spectrum of the signal x(t).

If x(t) happens to be a periodic signal whose Fourier coefficients are known, Equation can be rewritten as

2447_Spectral Analysis and Signal Bandwidth.png

The phase angles are referenced to the cosine function, in agreement with our phasor notation. The corresponding phasor diagram of Fourier coefficients is shown in Figure. Equation reveals that the spectrum of a periodic signal contains lines at frequencies of 0, f,2f, and all higher harmonics of f, although some harmonics may be missing in particular cases. The zero-frequency or dc component represents the average value a0, the components corresponding to the first few harmonics represent relatively slow time variations, and the higher harmonics represent more rapid time variations.

2426_Spectral Analysis and Signal Bandwidth1.png


Related Discussions:- Spectral analysis and signal bandwidth

Electrons, Ask question #Minimum 100 words accepted how does the charge pla...

Ask question #Minimum 100 words accepted how does the charge plate relate to the movement of electrons

Show advantages of oscillators, Q. Show Advantages of Oscillators? Alth...

Q. Show Advantages of Oscillators? Although oscillations can be produced by mechanical devices (e.g. alternators), but electronic oscillators have the following advantages:

Transformers., Calculations of sending line voltage

Calculations of sending line voltage

Block diagram convert into Electrical Circuit, i have block diagram and i n...

i have block diagram and i need to convert it into Electrical circuit and on electrical circuit need to apply state space method.

Explain pentium processor has a superscalar architecture, 'Pentium processo...

'Pentium processor has a superscalar architecture'. Explain the meaning of the statement. The Pentium microprocessor is organized along with three execution units. Single execu

Bureau of energy efficiency, Bureau of Energy Efficiency Setting up o...

Bureau of Energy Efficiency Setting up of the Bureau of Energy Efficiency The Bureau of Energy Efficiency has been established with effect from 1st March, 2002 under the

Capacitor-input filter, Capacitor-input filter: The capacitor-input fi...

Capacitor-input filter: The capacitor-input filter, as well called pi filter because of its shape which looks like the Greek letter pi, is a sort of electronic filter. Filter

Node-voltage method to find the current, Q. Use the node-voltage method to ...

Q. Use the node-voltage method to find the current I through the 5- resistor of the circuit of Figure.

Can you explain octal to binary conversion, Q. Can you explain Octal to Bin...

Q. Can you explain Octal to Binary Conversion? It is also simple to convert from an integer octal number to binary. This is completed by: Convert the decimal number

Transistor, what is bias compensation

what is bias compensation

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd