Normally everybody knows that laboratory practices are more important to reinforce the concepts of theory. The number of theory books for signals and systems are very large, whereas the respective lab manuals or lab books are small. This book solves the problem. This book gives the introduction about MATLAB, its different commands in the first chapter so that it makes the user in a comfortable position when they are going to the remaining chapters. The book is designed in such a way that the complete MATLAB script is given for each experiment, which makes the reader to write additional programs on their own and verify the output. The book is also intended to be used for self-study. The pictorial diagrams available at each and every step which makes the user to understand the concepts in a big way. This book is targeted for undergraduate Electrical students and Professionals who are teaching Signals and Systems.

Research issues in Image compression The last decade has been witnessing tremendous and explosive growth in Internet, Mobile communication, and increasing importance of Video communication. Data compression is one of the enabling technologies for each of these aspects of multimedia revolution. As one of the enabling technologies of the multimedia revolution, data compression is a key to rapid progress being made in information technology. It would not be practical to put images, audio, and video without compression. Joint Photographic Experts Group (JPEG) and Moving Pictures Experts Group (MPEG) are standards for representing images and video. Already many researches have taken place in Image compression with the use of wavelets. Still there is a demand for better compression with the use of wavelet variants. This book therefore aims at the research issues related to the usage of Wavelet variants like Multiwavelets, Waveletfootprints, and Contourlets for better image compression.