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Problem #2 (Topics: Oversampling, Noise Shaping Quantizers) Determine the value of the oversampling ratio L to...
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
Problem 2. (20 points) Consider a spin-1/2 particle with gyromagnetic ratio γ in a magnetic field B- Bi+B,k . (a) Treating Bi as a perturbation, (i) (6 points) calculate the first-order and second-order shift in energy and (ii) (4 points) calculate the first-order energy shift in wave function for the ground state. (b) (10 points) Solve the energy eigenvalue problem exactly, and compare the exact answers expended to the corresponding orders. Problem 2. (20 points) Consider a spin-1/2 particle with...
674%, y():1 nge- Consider the initial value problem: l- Using TWO(2) steps of the following explict third order Runge-Kutta scheme k1二hj(sn.yn). obtain an approximate solution to the initial value problem at x 0.04. Maintain at least eight decimal digit accuracy throughout all your calculations. You may express your answer as a single five decimal digit number, for example 17.18263. YOU DO NOT HAVE TO ROUND YOUR FINAL ESTIMATE y(0.04)* Skipped 674%, y():1 nge- Consider the initial value problem: l- Using...
Problem 3 In this problem you add some random noise to the sine function and then calculate the derivative. • First, generate a vector (the same length as x, above) which consists of random numbers in the range (-0.02) to (0.02). Use the MATLAB function rand. rand will return a random number between 0 and 1. For this problem, you actually need random numbers between +/- 0.02. How will you convert the random numbers you obtain from rand to be...
Consider in x [0, L], the second order Boundary Value Problem lu where qra+bx. The solution is subject to the boundary conditions du dxl Find an approximate solution using the using a three-node element. The shape function of the element is, in a local coordinate system s E[, Thus local node number 1 is to the left (s--1) and number 2 is in centre (s -0) and the third node is to the right (s 1) Hint: Assume that the...
remove noise entire noise from this image using matlab code & get the original image Problem 4 (35 points) 1. Describe in details how would you detect and reduce the periodic noise in the input image shown (you should have received a copy of this image via email) and remove it to get an enhanced image. 2. Use MATLAB to show the results of your answer. Include in your submission your code and resulting image. Sinusoldal Nolse Sinusoidal Noise Problem...
Please help me these questions of "Principles of Communications" subject. Thanks in advance! Problem 2: PCM system (40 points)coo h Consider a polar binary PCM system with number of bits per sample v 8 and the 4 KHz. Assumed that the channel is AWGN. voice bandwidth a) Assumed that one voice signal is transmitted using above PCM system, find the bit rate at the output of PCM transmitter and the minimum channel bandwidth. b) Assumed that 24 voice signals are...
Problem 7.2 The differential equations for a second-order thermal system are y=x2 where u is the control input. (a) Show that the plant is type zero. As a consequence, the steady-state error using proportional control is non-zero. Find the steady-state error as a function of G (b) To achieve zero steady-state error, integral control will be used, by adding the state variable zo with which is appended to the original equations, making the system third-order. For the resulting third-order system,...
Answer all parts and show all steps please. 3323 Modern Digital and Analog Communication Question A compact disc (CD) records audio signals digitally by using PCM. Assume that the audio signal bandwidth equals 15 kHz (a) If signal is sampled at the Nyquist rate and the samples are uniformly digitized into L 65,536 levels and then binary-coded, determine the number of bits required to encode a sample (b) If the audio signal has average power of 0.1 W and a...
#4 Problem 1 Find the general solution for the given differential equation Problem 2 Solve the d.e. y(4)2y(3) +2y() 3et +2te- +e-sint. Problem 3 Determine the second, third and fourth derivative of φ(zo) for the given point xo if y = φ(z) is a solution of the given initial-value problem. ·ry(2) + (1 +z?)y(1) + 31n2(y) = 0; y(1) = 2, y(1)(1)-0 yay) + sina()0: y(0)()a Problem 4 Using power series method provide solution for the d.e. Problem 5 Using...