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

Show the familiar electric sources, Q. Show the familiar electric sources? ...

Q. Show the familiar electric sources? Batteries and ac outlets are the familiar electric sources. These are voltage sources.An ideal voltage source is one whose terminal volta

Define the operation of real mode interrupt, Define the operation of real m...

Define the operation of real mode interrupt. Operation of Real mode interrupt: While the microprocessor completes executing the current instruction, this determines whether a

Pn junction, the depletion layer in the pn junction is caused by

the depletion layer in the pn junction is caused by

determine the minimum dandwidth of the system - fsk and ask, 1. Data is to...

1. Data is to be transmitted using a modem at 9600 bps. Determine the minimum bandwidth of the system with the following modulation methods (a) FSK (b) ASK. Use the excess

State fleming''s right-hand rule, Fleming's Right-hand rule states: Let ...

Fleming's Right-hand rule states: Let the thumb, first finger and second finger of the right hand be extended such that they are all at right angles to every other. If the first

Read-and-write memory, Q. Read-and-write memory? Writing is the same as...

Q. Read-and-write memory? Writing is the same as storing data intomemory and reading is the same as retrieving the data later. RAM is said to be volatile because its contents a

Determine the current in the series circuit, Q. (a) Let a unit impulse of v...

Q. (a) Let a unit impulse of voltage v(t) = δ(t) be applied to a series combination of R = 20 and L = 10 mH. Determine the current i(t)in the series circuit. (b) Repeat (a) for

Analysis on solar charging system buck converter with VMC, PLS WRITE THE IN...

PLS WRITE THE INTRODUCTION, METHODOLOGY AND LITERATURE REVIEW

Determine the full load voltage regulation, A 25KVA, 3 phase, wye-connected...

A 25KVA, 3 phase, wye-connected, 400v synchronous generator has a synchronous impedance of 0.05 +j1.6 ohms per phase. Determine the full load voltage regulation at (a) 0.8 power

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