advanced digital signal processing +palan
Hi,
From your question it seems that you are probably interested in Digital Signal Processors rather than Digital Signal Processing, or maybe you're a bit confused....
Anyways.... Digital Signal Processing would require you to delve back into your B.E. level mathematics and SIGNAL & SYSTEMS course. You need to have a solid understanding of the fundamentals (z-transform, DFT, FFT, IIR, FIR filters etc). At the same time you'll be practicing these concepts on MATLAB or some similar tools.
The BEST DSP books are the one by PROAKIS (Digital Signal Processing) and the one by OPPENHEIM (Signals & Systems).
But these are pretty thick books and take too much time on the basics. So my advice would be to go for SIGNAL & SYSTEMS MADE RIDICULOUSLY SIMPLE by Zoher Z. Karu (ZiZi Press, Cambrige, MA) It's a very small book (total pages =125) but it has all the topics (derivations of formulae are not given) you need to cover.
Digital Signal Processors are specialized processors designed to perform the usual DS-processing tasks faster than they would do on a general purpose microprocessor (at a much cheaper price 2-3$/chip). But, you probably won't find them useful for purposes other the Digital Signal Processing... so you need to study Processing first!
hope this is of some use!