The Fourier transform has numerous applications in various fields, including:
Bracewell provides the clearest explanation of the Convolution Theorem, which states that multiplication in one domain is equivalent to convolution in the other.
Searching for a PDF of this text is common because its applications have only grown since the 1960s:
Ronald Bracewell’s The Fourier Transform and Its Applications
As the original publisher, they offer e-book versions for modern tablets. Conclusion