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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.
Find the boundary between each two of the equations P1, P2, P3 by solving: P1 = P2 , P1 = P3 , P2 = P3 Plot the boundary lines on a single figure that also includes the
Illustrations of if statement: illustrations of running this script: >> sqrtifexamp Please enter a number: -4.2 The sqrt of 4.2 is 2.0 >> sqrtifexamp Please ent
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
Plot way forms for the following modulation schemes using Mathlab: a) 2 ASK b) BFSK c) BPSK 4 ASK
what is matlab?
Create a custom chi-square function in matlab, MATLAB in Statisticsn..
Given the following image, 1 2 1 1 2 0 0 1 5 1 0 1
a. Run the simulation you developed for 10 one-day periods. Provide a table of the Peak Power required for each day. b. Based on this information, and the fact additional capaci
log4x + logx=8
Answers should be submitted in an MS Word document. Simulations should accompany answers in a separate MATLAB file. 1) Queuing Simulator: Consider a communications router that
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