Test which of the following systems are linear, time-invariant, casual, and stable. (a) y[n] = x[-n] (Time-Flip) (b) y[n] = log(|x[n]|) (Log-magnitude) (c) y[n] = x[n] - x[n-1] (First-difference) (d) y[n] = round {x[n]} (Quantizer) PLEASE SHOW WORK
Determine if the systems described by the following input and output equation are linear or non-linear 1) Y(n) = nX(n) .(2) Y(n) = X(n2) (3) Y(n) = X2(n) (4) Y(n) = Ax(n) + B. (5) Y(n) = ex(n)
Problem Show that a system with excitation x[n] and response y[n] described by yin] nx[n], is linear, time variant and static.
2. Given x[n]— 1-ae-ja' find the DTFT of: (a) y[n] = nx[n],(b) z[n] = (n − 1)x[n] dX(92) Hint: nx[n]< > ; dΩ
In digital signal processing. with explanation tnx will up 15. Is the function y[n]-x[n-1]-x[n-56] causal? a. The system is non causal b. The system is causal >» c. Both causal and noncausal d. None of the above 16. Is the function y[n]x[n] stable in nature? a. It is stable - b. It is unstable c. Both stable and unstable d. None of the above 17. We define y[n] = nx[n]-(n-Dx[n]. Now, z[n] = z[n-1] + y[n]. Is z[n] a a....
7. Consider the discrete time systems G : y[n] = x[n]-x[n-1] For each of the combined systems below, determine the output y[n]. Then determine which systems are equivalent, ie., produce the same output y[n] GHy FHy
linear Signals and systems 1. (20 pts) :Let hn) n un 3), (1) (] n 3), n] a) Deternine the cnergy and power of each of the above signalbs. (b) Evaluate y[n] h[n] *?[n] using the sliding-tape algorithm" do convolution graphically
Problem 1 (Linear Systems of Equations). (a) Determine the values of a for which the follow- ing system of equations have no solution, exactly one solution, infinitely many solutions (a + 2)y + (a2-4)2 = (0-2) (b) If A = 4-1 0 a 2b a a be the augmented matrix of a linear system of equations then evaluate the values of a and b for which the linear system has no solution? exactly one solution? one parameter solution? two parameter...
Linear Algebra! Practice exam #1 question 1 Thanks for sloving! 1- Transformations (3 points each) a) Given a linear transformation T :N" N" T(x,y)-(x-y,x+y) and B= {< l, 0>.< 1,1 >} , B = {< l, l>,< 0, l>} V,-< 2, l> Find V,T,and TVg) b) Given a linear transformation T:n'->n2 T(x,y,2)-(x-z,x +2y)and V =< 2,-I, I> B= {<l, 0, 1>.< 1, 1, 0 >, < 0, l, 0 >}, B' = {<l, l >, < 0, 1 >} Find...
3. Write the following systems of linear equations using augmented matrix form a. 6x+7y= -9 X-y= 5 b. 2x-5y= 4 4x+3y= 5 C. x+y+z= 4 2x-y-z= 2 -x+2y+3z= 5 4. Solve the following Systems of linear equations using Cramer's Rule a. 6x-3y=-3 8x-4y= -4 b. 2x-5y= -4 4x+3y= 5 c. 2x-3y+z= 5 X+2y+z= -3 x-3y+2z= 1