by Tarun Kumar Rawat. The spine was sturdy, the pages crisp. As he sat at a mahogany desk and opened the book, the complex world of Z-transforms and discrete-time Fourier analysis began to untangle. Rawat’s explanations were surgical, stripping away the noise of the mathematics to reveal the elegant logic beneath.
: Analysis of phase/group delay and filter types (Notch, All-pass). tarun kumar rawat digital signal processing pdf