Acknowledgements

We are very grateful to the management of GITAM University and to its President, Dr M. V. V. S. Murthy, in particular, for their continuous encouragement and support in bringing out this edition of the book. It might not have been possible to realize this venture if it had not been for their enduring support and assistance.

We thank Suneetha Cheruku and Krishna Murthy Cheruku for their patience and support at the time of preparing the manuscript. We are grateful to Dr Ramana Rao, D. Rukmini, D. Rajasekhar and Surya Kumari for their encouragement and inputs to enhance the quality of the book. Special thanks are due to K. A. Mangamma, R. Madhavi and B. Vijaya Saradhi.

We extend our regards to all our teachers and well wishers, and are obliged to our colleagues and supporting staff at the Department of ECE, GITAM University, for their cooperation in bringing this project to fruition.

Dharma Raj Cheruku
Battula Tirumala Krishna