Schaum's Outline of Signals and Systems:

This powerful study guide gives you 571 problems in signals and systems, fully solved step-by-step! From Schaums, the original study guide, and students favorite with over 30 million guides sold this solution-packed time saver helps you master every type of problem you will face on your tests, from simple questions on linear time-invariant systems to complex Fourier analysis of discrete-time systems and state space analysis. Go directly to the answers you need with a complete index. Compatible with any classroom text, Schaums Outline of Signals and Systems is so complete its the perfect tool for graduate or professional exam prep!

to download follow the link below:

http://www.esnips.com/doc/0fb360ef-10fe-448d-babd-63ee6b4a8afa/Signals-And-Systems