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

Composition of mosfet, Composition of MOSFET  In a test pattern the P...

Composition of MOSFET  In a test pattern the Photomicrograph of two metal-gate MOSFETs. Probe pads for two gates and three source or drain nodes are entitled.Generally the se

What is the difference between photodiode and solar cell, A photodiode is m...

A photodiode is made to detect light quickly a solar cell is made to collect energy from light. They are both typically silicon diodes, but modified to meet their dissimilar requir

Laser beam machining and electron beam melting, Differentiate between LBM a...

Differentiate between LBM and EBM process on the basis of application and limitations.

For carry flag - return instructions , For Carry Flag  RC (Return of ...

For Carry Flag  RC (Return of Carry) and RNC ( Return on no Carry) Instruction RC returns from  the subroutine  to the calling  program if carry  flag is et (CY= 1). The

Sketch phasor diagrams for lagging power factor load, Q. For a transmission...

Q. For a transmission-line model that includes only the series impedance Z, sketch phasor diagrams for: (a) Lagging power factor load. (b) Leading power factor load.

Compute the terminal voltage and current of each generator, Q. Three dc gen...

Q. Three dc generators are operating in parallel with excitations such that their external characteristics are almost straight lines over the working range with the following pairs

Explain block diagram of the system, Q. Explain Block diagram of the system...

Q. Explain Block diagram of the system? The block diagram is a pictorial representation of the equations of the system. Each block represents a mathematical operation, and the

Example of clamper circuits, Example of clamper circuits: Example of c...

Example of clamper circuits: Example of clamper circuits are as follow Voltage multiplier circuit: voltage circuit is employed to maintain a relatively low transformer pe

Calculate the ef?ciency of the induction generator, A three-phase, four-pol...

A three-phase, four-pole, 220-V, 60-Hz induction machine with a per-phase resistance of 0.5  is operating at rated voltage as a generator at a slip of -0.04, delivering 12 A of li

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