Engineering, 30.03.2020 21:29 mac7210

Use sig_noise to generate a 256-point waveform consisting of a 300-Hz sine wave with an SNR of −12 dB (x=sig_noise(300, −12,256); ). Calculate and plot the power spectrum using 2 different approaches. First use the direct approach: take the Fourier transform and square the magnitude function. In the second approach use the traditional method defined by Equation 4.11: take the Fourier transform of the autocorrelation function. Calculate the autocorrelation function using axcor, then take the absolute value of the fft of the autocorrelation function. You should only use the second half of the autocorrelation'

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, EmilySerna

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Answers: 1

continue

Engineering, 04.07.2019 18:10, settasav9641

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Answers: 3

continue

Engineering, 04.07.2019 19:10, Destinationz

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?

Answers: 3

continue

Engineering, 04.07.2019 19:10, nida7864

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed

Answers: 3

continue

You know the right answer?

Use sig_noise to generate a 256-point waveform consisting of a 300-Hz sine wave with an SNR of −12 d...