Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Write a MATLAB function called pgm which calculates the periodogram. The function inputs should be the length input vector x and its output should be the length N periodogram estimate Pxx. Generate a length N discrete random signal with the randn function and use the pgm to estimate the PSD for N = 128, 256, and 512. Inspect and comment upon the results. The theoretical autocorrelation function for this discrete Gaussian random signal equals σ2δ (i.e. there is zero similarity between the signal and a shifted version of it), where is the standard deviation of the random signal; for the above random signal (see help randn), is equal to 1. Therefore its true PSD is a constant, unity, for all frequencies. Such a signal is referred to as white noise because it has a constant spectrum independent of frequency, as an, albeit approximate, analogy with white light. The difference between this ideal PSD and those estimated with the datasets is due, in part, to their ?nite lengths. One method to improve these estimates is to apply frequency domain smoothing.
- Employ the ?lt?lt command within MATLAB to smooth the PSD estimates with a zero phase FIR ?lter with impulse response sequence 0.2*[1 1 1 1 1]. Does this improve the apparent PSD estimate?
- Generate a length 1024 discrete random signal with the randn function and sub-divide the signal into eight separate 128 point signals. Estimate the PSD for each length 128 signal and display on two plots the eight results (Note: Break each window into 2× 2 sections. Read help ?gure on how to obtain the second window). Notice the variation of the estimates.
- These eight results can be averaged to yield a new PSD estimator called the averaged periodogram which has less variation than the individual PSDs. Display this result.
The circuit diagram of an active filter is shown below. (a) Determine an expression for the transfer function of the filter. (b) Hence find an expression for the frequency res
Given , provide solutions for the following systems of equations a) , 1.0 10.5 0.5 9 0.5 3.25 5.25 2.5 2 13 5 6 ? ? ? ? ? ? ? ? ? ? ? A ? ? ? ? ? ? ? ? ? ? ? ? 3 7 16 b b) , 1.0 10
using newton divided diference formula find f(15) and f (8)
Build a single phase model for the simple 3-phase system shown in the single line diagram shown below using SimPowerSystems in MATLAB Simulink. Data: Source Voltage
construct a matlab program to calculate and to plot the electron and hole concentration as a function of the Fermi-level in an energy gab of Si at a Given temperature and the carri
why we use wavelet in image processing ?
#create a matlab GUI for designing common emitter amplifier which produces AC load lines based on the component values
Looping Statements: Consider the problem of computing the area of a circle with radius of 0.3 centimeters-a MATLAB program certainly is not required to do that; you would use
Writing data to a File: The save function can be used to write a data from the matrix to the data file, or to append a data file. The format is as shown below: save filenam
Calling an User-Defined Function from Script: Now, we will change our script which prompts the user for the radius and computes the area of a circle, to call our function cal
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd