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Basic Signals 1. Generate and plot (using MATLAB'S stem command) the sequence x[n] = (0.95)n cos(?/20 n) for 0 ≤ n ≤ 63. Note that MATLAB'S indexing for the first element starts with 1 and not 0, so you will have to adjust for this in your plot. 2. The following is a simple example of a MATLAB function framp which generates an N-point ramp x[n] = n for 1 ≤ n ≤ N. The input argument is N and the function generates the desired values. function x=framp(N) % function x=framp(N) % Generates an N-point ramp sequence n=l:N; x=n' ; Write a MATLAB function, fcosine, which will generate the values from a finite-length sinusoid A cos(??0n + ?) for n1≤ n ≤ nf. The function will need a total of five input arguments: A, ?0, ?, n1, and nf. The function should return a column vector which contains only the desired values of the sinusoid. Test your function by plotting the results with A = 4, ?0 = ?/10, ? = ?/4, n1 = -20, and nf = 20. Impulse Response and Step Response Consider an LTI system where the input x[n] and output y[n] satisfy the following difference equation (assume initial rest conditions): 3. Using filter, generate and plot the response y[n] for -10 ≤ n ≤ 100 when the input is x[n] = ??[n], the unit impulse sequence. 4. Generate and plot the response y[n] for -10 ≤ n ≤ 100 when the input is x[n] = u[n], the unit step sequence. System Functions, Frequency Response, and Pole/Zero Plots The system function of the LTI system in Exercises 3 and 4 is given by: 5. Using freqz with N = 512, make plots of the magnitude and phase responses |H(?)| and ?H(?) for 0 ≤ ? ≤ ?. Specify what type of filter this system represent s(i.e. lowpass, highpass, bandpass, etc.). 6. Use zplane to make a pole/zero plot of all finite poles and zeros of H(z). (Hint: To determine all finite poles and zeros, Express H(z) in positive powers of z by multiplying the numerator and denominator by an appropriate power of z.)
Which sample produces greater Hall voltage: long and narrow or short and wide Thickness (d) is same in both the cases. With little explanations please. 1) If the concentration of scattering centers increase in the semiconductor, would it increase o..
1)How do you use the Cayley-Hamilton technique to find the state transition matrix and the state equation output y 2) How do you draw the standard form simulation diagram given a higher-order differential equation
a 400v induction motor runs with slip 3% and consumes 5800w from the supply. it the stator losses equal 500w and the mechanical losses are 100w. calculate the output power of the motor
Electrons are liberated with zero velocity from the negative plate of a parallel plate capacitor, to which is applied a magnetic flux density B parallel to the plates. Prove that these electrons will not reach the positive plate.
A series motor runs at 600 rpm when taking 110 amps from a 230 V supply. The resistance of the armature circuit is 0.12 ohms and that of the series winding is 0.03 ohms. Calculate the speed when the current has fallen to 50 amps
Voltage in complex forms, An engine consumes 10kw of power and 4kvar reactive power at a current of (6+j4)Amps
A single phase full bridge inverter feds power at 50Hz to RLC load with r=5 ohms , l=0.3H and C=50μF. The dc input voltage is 220volts. (a) Find an expression for load current up to fifth harmonic
consider the back to back cascade of an ideal C to D and D to C converter. Both have the same sampling rate fs. Suppose that the signal being sampled is: x(t) = cos(324*pi*t - pi/4) + cos(80*pi*t - pi/4)
Calculate the Fourier Transform of f(t) = 5 sinc(-2t/100), and graph the magnitude and phase as a function of f. If the signal of problem 1 is delayed by 0.1 ms. What is the new Fourier Transform.
A pipe of inner radius 4 cm, outer radius 6 cm, and infinate length is centered on the z-axis. Charge is evenly distributed within the wall of the pipe in the amount of 16 coulombs per meter length.Find and Plot the electric feild density as a fun..
The tungsten filament of an incandescent lamp had aresistance of 7 ohms at a room temperature of 24oC. When it is connected to the electric source the resistance rises to 96ohms. Compute the operating temperature. The inferred zero fortungsten is ..
Find the output y[n] of an LTID system specified by the equation 2y[n+2] - 3y[n+1] = y[n] = 4x[n+2] - 3x[n+1]if the initial conditions y[-1] = 0, y[-2] = 1, and the input x[n] = (4)^-n u[n]
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