July 2013
Beginner
224 pages
5h 46m
English
Content preview from Introduction to SNG and ENG MicrowaveBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Digital compression
Digital compression is now an essential characteristic of satellite transmissions, and as we have already seen, increasingly in terrestrial microwave as well. Compression is a highly complex subject, and to fully explain is far beyond the scope of this book, but we do need to have some concept of the process in order to understand its fundamental advantages (and disadvantages!).
So why would we want to compress a signal? The answer is that in an ideal world, we would not. If we had unlimited bandwidth available to us to send our information, then there would be no need for compression. Unfortunately, bandwidth is a valuable resource, and great efforts are made to make sure that there is efficient use of it.
Digital compression ...
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