Explain the limiting the spectrum, Electrical Engineering

Assignment Help:

Explain the Limiting the Spectrum

This low-pass filter is known an anti-aliasing filter. These filters are originated at the input to most applications. Since they are required before the signal is sampled, they are approximately always analog filters. It is theoretically possible to make use of the DSP device to remove the aliasing, but this would need a high sample rate. Actually, this is rarely done as it would consume too much of the processing power of the DSP, which we need to carry out other tasks. The ideal anti-aliasing filter characteristics are displayed in the lower half of the above diagram. It is flat along with gain A over the pass band and zero at any other point.

An ideal filter would as well have a linear phase response. Variations from this ideal may have an important effect on performance. For instance, in control applications, a badly planed filter may mean that the system spends all of its time trying to compensate for the filter, rather than trying to keep a constant motor speed. In audio applications, a poor phase response can lead to harmonic distortion and degradation that is frequently audible. For audio applications, commercially available switched-capacitor filters are easy to use and offer a reasonably linear response.


Related Discussions:- Explain the limiting the spectrum

Explain about differentiator, Q. Explain about Differentiator? Shown in...

Q. Explain about Differentiator? Shown in Figure is a differentiator which is obtained by replacing R1 in the inverting amplifier of Figure by a capacitor C. Assuming ideal op-

CAO, conditional branch instruction

conditional branch instruction

Calculate maximum reactive power the generator can produce, A 3-phase, wye-...

A 3-phase, wye-connected, 11.8 kV, 100 MVA turbo- generator of 0.8 power factor lagging has a synchronous reactance of 2.0 p.u. on rating. The generator is driven by a steam turbin

Determine the bounds on the carrier frequency, Suppose that a video signal,...

Suppose that a video signal, having W = 5 MHz, is transmitted via FM with f = 20 MHz. For 1/100 ≤ B/fc ≤ 1/10, determine the bounds on the carrier frequency. Use WFM ∼ = 2( ω + 2W

Explain the three-line cable residential wiring, Q. Explain the three-line ...

Q. Explain the three-line cable Residential wiring? The three-line cable coming out of the secondaries of the distribution transformer on the utility pole passes through the el

How can we prove that radio waves are sine waves, What makes them sine? ...

What makes them sine? Ans) Fourier tells that only a sine wave has no harmonic content. The math works out that if you have any wave shape other than a sign wave, you can brea

Internalization of KPI Process, Internalization of KPI Process It is t...

Internalization of KPI Process It is the responsibility of management to ensure in which the focus of all the participants in performance management and KPI exercise is there

BASIC ELECTRICLE, kindly tell me which text book is usefull forlearn the ba...

kindly tell me which text book is usefull forlearn the basic electricle.

Explain acceptance cone, Explain Acceptance cone? The fibre air - core ...

Explain Acceptance cone? The fibre air - core interface is display below: In this figure Omax is the maximum angle, inside that the rays undergo total internal reflecti

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