1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ICE Princess25 [194]
3 years ago
10

A noisy signal has been uploaded to D2L in the files fft_signal.mat and fft_signal.txt.Write a program to estimate the power spe

ctral density of the signal and determinethe frequency components used to construct it. Submit your code along with yourassignment. You can compare against the Matlab® built-in function pwelch to makesure your code is working properly. Note: All of the functions you will need forwindowing and computing FFTs are built into Matlab®. Your primary task will beto write the logic/loops required to use them to replicate the behavior of pwelch (i.e.power spectrum using segmenting and windowing). You can use a window size of 256.
Computers and Technology
1 answer:
77julia77 [94]3 years ago
7 0

Answer:

Answer: Program to estimate the power spectral density of the signal

Explanation:

fs= 4000; % Hz sample rate Ts= 1/fs; f0= 500; % Hz sine frequency A= sqrt(2); % V sine amplitude for P= 1 W into 1 ohm. N= 1024; % number of time samples n= 0:N-1; % time index x= A*sin(2*pi*f0*n*Ts) + .1*randn(1,N); % 1 W sinewave + noise

Spectrum in dBW/Hz

nfft= N; window= rectwin(nfft); [pxx,f]= pwelch(x,window,0,nfft,fs); % W/Hz power spectral density PdB_Hz= 10*log10(pxx); % dBW/Hz

Spectrum in dBW/bin

nfft= N; window= rectwin(nfft); [pxx,f]= pwelch(x,window,0,nfft,fs); % W/Hz power spectral density PdB_bin= 10*log10(pxx*fs/nfft); % dBW/bin

You might be interested in
What can u access various sites on
Klio2033 [76]
Search engines. (I'm Misty btw if you want to know)
3 0
3 years ago
The exploitation of a buffer-overrun vulnerability in an application will MOST likely lead to:_________
SashulF [63]

Answer:

A. Arbitrary code execution

Explanation:

A buffer-overrun, also known as buffer overflow occurs when a programmer makes an error during coding, which could make his system easily susceptible to attacks from a hacker. The root cause of this problem is an overflow of data in a buffer, and programs that are written in C and C+ + are more likely to be affected by this problem.  When a buffer-overrun occurs, it would most likely lead to arbitrary code execution.

Arbitrary code execution is an uncontrolled and unrestricted coding by the attacker which alters the original coding. The attacker could input more information into the coding, which alters the original information and which would make the application porous and accessible by just anyone. It is important that programmers run regular tests on their programs, so as to detect any coding errors.

8 0
3 years ago
What is the difference between HTML and CSS? * 1. CSS is a markup language unlike HTML. 2. HTML is a backend technology and CSS
GarryVolchara [31]
The anserw is the third one. 
5 0
3 years ago
Read 2 more answers
One reason to buy a home instead of rent a home is:
vazorg [7]
A is the correct Answer

7 0
3 years ago
Which of these is system software? Check all
Darya [45]

Answer:

Windows OS is software....

6 0
3 years ago
Other questions:
  • In addition to talking to other doctors remotely, telegraphy technology?
    5·1 answer
  • Choose the false statement below. The content that displays in the browser is contained in the head section. The content that di
    14·1 answer
  • Design two subclasses of Employee…SalariedEmployee and HourlyEmployee. A salaried employee has an annual salary attribute. An ho
    12·1 answer
  • Which of the following is NOT a strength of monetary policy?
    15·1 answer
  • Need help ASAP Examples of utilities that make it possible for people to create and share multimedia files include _____. audio
    9·2 answers
  • What happens to a data table when the formulas or variables used to create it are changed?
    9·2 answers
  • Which programming element is used by a game program to track and display score information?
    10·2 answers
  • A cycle merchant allows 15% discount on the marked price of a bicycle and still he makes a profit
    14·1 answer
  • In this class, it is very common for your computer screen to look like this. What is this?​
    5·1 answer
  • Post back maintains view state by assigning the form values to a hidden form field named ____.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!