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This lecture covers the fundamentals of spread spectrum modulation, which can be defined as any modulation technique that requires a transmission bandwidth much greater than the modulating signal bandwidth, independently of the bandwidth of the modulating signal. After reviewing basic digital modulation techniques, the principal forms of spread spectrum modulation are described. One of the most important components of a spread spectrum system is the spreading code, and several types and their characteristics are described. The most essential operation required at the receiver in a spread spectrum system is the code synchronization, which is usually broken down into the operations of acquisition and tracking. Means for performing these operations are discussed next. Finally, the performance of spread spectrum systems is of fundamental interest and the effect of jamming is considered, both without and with the use of forward error correction coding. The presentation ends with consideration of spread spectrum systems in the presence of other users. For more complete treatments of spread spectrum, the reader is referred to [1, 2, 3].

This exuberant story follows a Chinese American family as they prepare for the Lunar New Year. Each member of the family lends a hand as they sweep out the dust of the old year, hang decorations, and make dumplings. Then it s time to put on new clothes and celebrate with family and friends. There will be fireworks and lion dancers, shining lanterns, and a great, long dragon parade to help bring in the Lunar New Year. And the dragon parade in our book is extra long on a surprise fold-out page at the end of the story. Grace Lin s artwork is a bright and gloriously patterned celebration in itself! And her story is tailor-made for reading aloud." The singing mermaid is tempted away from her home at Silversands to join the circus. The audiences love her but the poor mermaid, kept in a tank by the wicked circus owner Sam Sly, soon longs to return to the freedom of the sea. Will she ever escape? With glitter throughout, this is a beautiful, lyrical new Fundamentals of Spread Spectrum Modulation free pdf picture book from the creators of the bestselling WHAT THE LADYBIRD HEARD.

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Author: Rodger E. Ziemer
Number of Pages: 79 pages
Published Date: 07 Jul 2007
Publisher: Morgan & Claypool Publishers
Publication Country: San Rafael, United States
Language: English
ISBN: 9781598292640
Download Link: Click Here
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