Solving Signal x(n) with DFT in MATLAB

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SUMMARY

The discussion focuses on calculating the Discrete Fourier Transform (DFT) of the signal x(n) = (0.5^n) * u(n) using MATLAB. The user seeks assistance with MATLAB code to compute the DFT for specific values of N1=50, N2=20, and N3=11, and subsequently reconstruct the signal. The inquiry highlights a lack of familiarity with MATLAB, indicating a need for clear coding examples and explanations related to DFT computation and signal reconstruction.

PREREQUISITES
  • Understanding of Discrete Fourier Transform (DFT)
  • Basic knowledge of MATLAB programming
  • Familiarity with unit step function u(n)
  • Concept of signal reconstruction in the frequency domain
NEXT STEPS
  • Learn MATLAB's FFT function for efficient DFT computation
  • Research signal reconstruction techniques in MATLAB
  • Explore MATLAB's plotting functions to visualize signals
  • Study the properties of the unit step function and its impact on DFT
USEFUL FOR

Students, engineers, and researchers working on signal processing projects, particularly those utilizing MATLAB for DFT calculations and signal analysis.

john21
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hi everyone,
I need help in a project.I have a signal x(n)=(0.5^n)*u(n). i want to find the DFT of the signal for N1=50,N2=20,N3=11 and then the reconstruction of the signal. I don't know anything about MATLAB and i don't have any idea how i'll do this. My problem is the code so if someone can help me please do. thanks!
 
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What are N1, N2, and N3?
 

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