x[n]=cos(2*pi*n) x[n]=cos(0.2*pi*n) x[n]=cos(0.25*pi*n) x[n]=cos(0.26*pi*n) x[n]=cos(10*pi*n) x[n]=cos((8/3)*pi*n) those signals are periodic?? and for those signals in Part (a) that are periodic, determine the number of samples per period
2. Let x[n] =cos((pi*n)/8) for -16 <= n <= 16 . On the same stem diagram, plot x(n) and x(n- 4). You should use the sigshift function to complete this exercise.
Results for this submission Entered Answer Preview Result (3/2)+(6/pi)*cos(x) e + cos(2) correct (3/2)+(6/pi)*cos(x)-(2/pi)*cos(3*x) 3 6 st-ce 2 s(3x) correct (3/2)+(6/pi)*cos(x)-(2/pi)*cos(3*x)+(6/5)*pi*cos(5*x) it coule) = _ cou(30) + * cos(52) incorrect A correct f(x) f(x) correct At least one of the answers above is NOT correct. 1 (1 point) (a) Suppose you're given the following Fourier coefficients for a function on the interval (-1,7): a 3 6 6 6 = , ai = –, az = -2,25 = = and 22,...
Consider h(n)=[0.5^n * cos((pi*n)/2)]*u(n) a. find transfer function H[Omega] b. If x(n)= cos((pi*n)/2), find system output y[n] using H(Omega) from part a
It is signal below periodic or non periodic? if periodic find period value ( N value)? X(n) = cos (3π n)
The Signal x(t)= e^(j*(3pi/2)*t)*cos((5pi/2)*t)+j*sin(pi*t) i) show that x(t) is periodic and what is the fundamental period? ii) What is the average value and power of x(t)?
x(t)=5 cos(60t)+2 cos(90*pi*t)+cos(180*pi*t) find the fundamental frequency
Entered Answer Preview Result (9/[(piÄ3)*(nA3)])*(16/(piA3)*(mA3)])* [pi*n'sin(pi*n)+2 cos(n*pi)-2 9 16 (πη sin(m) + 2 cos(n7)-2)(nm sin(mm) + 2 cos(mm)-2) incorrect 규 교 The answer above is NOT correct. 1 point) The double Fourier sine-sine series of the function is given by 00 oO m sin( ) sin(mm) where
Given a system magnitude and phase frequency response below, and an input signal x(n) = cos(2*pi*n/3), find the output y(n) from the system. (25 pts) Magnitude Response Omega pi2 atomegapi Phase Response -pv2 at omega-pl omega
Calculate x from –PI to PI in steps of 0.1 (-3.1 to +3.1). calculate y=cos(x) for each value of x, calculate z=sin(x) for each value of x. calculate w=.4 cos(x) + .8 sin(x) Output results to a file "sines.txt", in 5 columns – the index, x, y, z and w (63 lines).