Ask Question, Ask an Expert


Ask Electrical & Electronics Expert

problem 1: A sine wave is sampled at interval T and quantixed using N = 2 bits precision over the range ±1. The sine wave has peroid τ, and T is chosed such that  T=1/8 τ. Plot one cycle of the true signal and show where the sample of the sinusoidal waveform fall.

problem 2:

i) For a 3 term averagin filter, prepare a difference equation governing the filter and dervie the corresponding  z transform. Sketch a pole zero plot, would this filter be stable, why or why not?

ii) Sketch the frequency resoponce and describe where the peaks and nulls occur.

iii) Extend the above to an N-term averging filter prepare a difference equation and derive the z transform in closed form. Indicate were the pole and zeros would fall for Larger N, and then sketch the frequency response for a similarly large N.

problem 3:

i) A  sionusodial signal has the form: x(t) = AsinΩt

Derive an expression for the auto correlation Rxx (λ)

ii) describe the significance of this result in term of the frequency of the correlation and also if noise were added to the sinusoidal signal x(t)

iii) If a signal x(t)is corrupt by additive white noise v(t), then the resulting signal would be: y(t) = x(t) + v(t)

What form would the auto correlation Ryy (λ) take in that case?
problem 4:

A band pass FIR filter is required to pass frequencies from 5KHz to 8KHz, using a sample rate of 40K

i) describe how this would map to normalization sampling frequencies in radians per sample, Include a diagram shown the passband, stop band and other areas of interest.

ii) Derive a mathematical expression for the filter coefficients.

iii) prepare a MATLAB script to find out the frequency response of the filter and briefly describe how it works.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M9337

Have any Question? 

Related Questions in Electrical & Electronics

1 assume alice needs to send an e-mail to bob explain how

1. Assume Alice needs to send an e-mail to Bob. Explain how the confidentiality of the e-mail is achieved using S/MIME. 2. When we talk about authentication in SSL, do we mean message authentication or entity authenticat ...

In natural-convection problems the variation of density due

In natural-convection problems, the variation of density due to the temperature difference ?T creates an important buoyancy term in the momentum equation. If a warm gas at T H moves through a gas at temperature T 0 and i ...

Let xt be a signal whose fourier transform xomega is

Let x(t) be a signal whose Fourier transform X(ω) is nonzero only over 3 ≤ |ω| ≤ 9. Further, only frequencies 5 ≤ |ω| ≤ 7 contain useful information (the other frequencies can be considered to contain noise or different ...

1 what is the criterion for a material to be a good

1. What is the criterion for a material to be a good conductor? 2. Give two examples of materials that behave as good conductors for frequencies of up to several gigahertz. 3. What is skin effect? Discuss skin depth, giv ...

1 rework problem with the assumption that the momentum of

1. Rework Problem with the assumption that the momentum of the incoming air at section (1) is zero. Determine the exit velocity, v, and the magnitude of the pressure drop at section (1). 2. Air of density 1.21 kg/m 3  is ...

1 state the relationship between polarization current

1. State the relationship between polarization current density and electric field intensity. How is it taken into account in Maxwell's equations? 2. What is the revised definition of D? 3. State the relationship between ...

State with reasons whether the following signals are

State with reasons whether the following signals are periodic or aperiodic. For periodic signals, find the period and state which of the harmonics are present in the series.

1 a program for encoding and decoding lzw compression2 a

1. A program for encoding and decoding LZW compression. 2. A program for encoding and decoding arithmetic compression. 3. A program that reads a two-dimensional matrix of size N × N and writes the values using zigzag ord ...

1 in transform coding show that a receiver that receives an

1. In transform coding, show that a receiver that receives an M matrix can create the original p matrix. 2. Calculate the T matrix for DCT when N = 1, N = 2, N = 4, and N = 8. 3. Using one-dimensional DCT encoding, calcu ...

1 state maxwells equations for static fields ina integral

1. State Maxwell's equations for static fields in (a) integral form, and (b) differential form. 2. Discuss the classification of static fields with reference to subsets of Maxwell's equations. 3. Outline the steps involv ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro