Find out the amplitude ,frequency and phase displacement for given QPSK signal (a) 100 cos(25t+π/4). (b)...

Find out the amplitude ,frequency and phase displacement for given QPSK signal

(a) 100 cos(25t+π/4).

(b) 33.33 sin (350t+ 3π/4) .

Expert Solution

A standard trigonometric signal is represented as Acos(2f t + ) or Asin(2f t + ), where A is amplitude f is frequency and is phase displacement

Now from the given signals

a) 100cos(25t + /4) comparing with sandard cosine signal

Amplitude = 100

frwquency = 2f = 25 => f = 25/(2) = 3.98 Hz

phase displacement = /4 rad

b) 33.33sin(350t + 3/4) comparing with sandard sine signal

Amplitude = 33.33

frequency = 2f = 350 => f = 350/(2) = 50.704 Hz

phase displacement = 3/4 rad

Manojponduru answered 2 years ago

Find the roots of the following equation in [−π, π] 2x 2 − 4 cos(5x) −...

Find the roots of the following equation in [−π, π] 2x 2 − 4 cos(5x) − 4x sin x + 1 = 0 by using the Newton’s method with accuracy 10^(−5) . how do I solve this using a computer

there is a sinusoidal message signal (f = 100 Hz). Make amplitude modulation with carrier frequency...

there is a sinusoidal message signal (f = 100 Hz). Make amplitude modulation with carrier frequency of 10KHz. Use three different modulation depths / indices (0.2 /0.60/0.8). Then demodulate this mixed signal (for these three cases) by try to get message signals. (need matlab codes and graphs)

Find the (a) amplitude, (b) period, (c) phase shift (if any), (d) vertical translation(if any), and...

Find the (a) amplitude, (b) period, (c) phase shift (if any), (d) vertical translation(if any), and (e) range of each function. then graph the function over at least one period. 1) y=-1/4 sin(3/4x+180degrees/8) 2)y=-3+3sin1/2x 3)y=2/3cos(x=180degrees/2)

Find frequency response of the system given by following equation using MATLAB. Clearly plot both amplitude...

Find frequency response of the system given by following equation using MATLAB. Clearly plot both amplitude and phase response waveforms with labels assigned. y[n+1]-0.5 y[n]=x[n] Matlab code would be greatly appreciated

The position of a 50 g oscillating mass is given by x(t)=(2.0cm)cos(10t−π/4), where t is in...

The position of a 50 g oscillating mass is given by x(t)=(2.0cm)cos(10t−π/4), where t is in s. If necessary, round your answers to three significant figures. Determine: amplitude= 2cm period= 0.628s spring constant =5 N/m phase constant= -0.785 rad find initial coordinate of the mass and the initial velocity.

. Given the following non-periodic signal: x(t) = 3 e-5t cos(12t) u(t) Find the Fourier...

. Given the following non-periodic signal: x(t) = 3 e-5t cos(12t) u(t) Find the Fourier transform expression X(ω) without using Table. Calculate the magnitude spectrum of X(ω) for ω = π/8, π/4, and π/2

Find the slope of the tangent line to the given polar curve at the point specified by the value of θ. r = 1 + 2 cos θ, θ = π/3

a)find all solutions to 5sin2x+4=8, 0<x<360 b)find all solutions to 5cos^2theta-sin^2theta-cos theta=0 0<theta<2pie

Sketch the region enclosed by the given curves and find its area. a) y=4/x,y=4x,y=(1/4)x,x>0 b) x=y2−4y,x=2y−y2

Question