If you are looking for philosophical depth, buy Oppenheim. If you are looking for a practical, result-driven, and student-friendly companion to survive—and even enjoy—Digital Signal Processing, It remains, arguably, the most effective exam-focused DSP textbook ever written for the Indian subcontinent.
For millions of engineering students who struggle with the abstract mathematics of signals and systems, this book acts as a bridge. It acknowledges that the immediate goal of most students is not to advance the field of digital communications but to master the fundamentals well enough to pass a professional exam and move forward in their career. digital signal processing by nagoor kani
For engineering students across India and Asia, one name has become synonymous with mastering this complex subject: His book, "Digital Signal Processing," has evolved from a simple textbook into a academic bible for undergraduate and postgraduate engineering students, particularly those following the curricula of Anna University, JNTU, VTU, and various autonomous engineering colleges. If you are looking for philosophical depth, buy Oppenheim