How do you evaluate the following: (G(jw).H(jw))*K(jw)?

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SUMMARY

The evaluation of the expression (G(jw).H(jw))*K(jw) involves two key operations: multiplication of the frequency functions G(jw) and H(jw), followed by convolution with K(jw). Users are advised to apply the convolution formula after performing the initial multiplication. Additionally, transforming the product back to the time domain using the Inverse Fourier Transform is a valid approach, reinforcing the principle that convolution in the frequency domain equates to multiplication in the time domain.

PREREQUISITES
  • Understanding of frequency domain analysis
  • Familiarity with convolution and multiplication operations
  • Knowledge of the Inverse Fourier Transform
  • Basic principles of signal processing
NEXT STEPS
  • Study the Convolution Theorem in signal processing
  • Learn about the properties of the Fourier Transform
  • Explore practical applications of G(jw), H(jw), and K(jw) in system analysis
  • Investigate software tools for performing Fourier Transforms, such as MATLAB or Python's NumPy library
USEFUL FOR

Signal processing engineers, systems analysts, and students studying Fourier analysis will benefit from this discussion, particularly those working with frequency domain evaluations and convolution operations.

kolycholy
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so i need to figure out how do you evaluate the following:
(G(jw).H(jw))*K(jw)
note
note: i would like you to assume that the dot means multiplication and the star sign means convolution
 
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Why not multiply the two frequency functions G(jw) and H(jw) and convolve that with K(jw) using the convolution formula

Or, multiply the two frequency functions G(jw) and H(jw) and transform the resultant and K(jw) back to time (using the Inverse Fourier Transform) Did you learn that convolution in the time domain is the same as multiplication in the frequency domain? Well the dual is also true; convolution in frequency becomes multiplication in time.
 
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