In August 2011, SciTech Publishing will release Wireless Receiver Design for Digital Communications, 2nd Edition, by Kevin McClaning. This is a completely updated version from the very popular first edition (2001) that was written by Kevin McClaning and Tom Vito.
My contacts at SciTech Publishing kindly gave us some preview chapters while the book is being typeset. If you would like to check out the table of contents, head here. And, if you wish to buy the book, be sure to use this special code to score another 10% off. Use rfmw511 in the shopping cart to get your discount.
If you buy the book, have a comment about the excerpt, or want to sound off about the previous edition, please hit the comments below.
Part 1: Propagation.
Includes an excerpt from Chapter 3, covering types of propagation, propagation through free space, a homogenous medium, and a non-homogenous medium.
"The propagation characteristics between two geographically fixed sites will change over time; for no apparent reason. Digital eye patterns will open and close; bit-error rates will vary; frequency nulls will appear and disappear. We can often observe daily, monthly, and yearly variations in the propagation characteristics of a channel. In this chapter, we’ll explain some of the causes of these effects and offer some solutions."
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Part 2: Multipath Propagation
"A radio signal spreads out in different directions as it radiates away from the broadcast antenna. Parts of the spreading wave will encounter reflecting surfaces, and the wave will scatter off these objects. In an urban environment, the wave might reflect off buildings, moving trains, or airplanes.
Multipath occurs when a signal takes two or more paths from the transmitting antenna to the receiving antenna. We’ll assume that one signal, the direct ray, travels directly from the transmitter to the receiver. The direct ray is usually (but not always) the strongest signal present in the receiving antenna.
The other signals (or rays) arrive at the receiving antenna via more roundabout paths. These reflected signals eventually find their way to the receiving antenna. In our analysis, we’ll assume these indirect rays arrive after the direct ray and that the indirect rays are weaker in power than the direct rays."
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Sounds like a book that would've been very useful to digital TV receiver designers back in the late 90s -- a time when for some reason the well-known characteristics of RF propagation and multipath were swept under the rug by many...
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