Melvin M. Weiner's Adaptive antennas and receivers PDF

By Melvin M. Weiner

ISBN-10: 084933764X

ISBN-13: 9780849337642

ISBN-10: 1420026496

ISBN-13: 9781420026498

In our sleek age of distant sensing, instant conversation, and the approximately never-ending checklist of alternative antenna-based purposes, complicated difficulties require more and more subtle suggestions. traditional antenna structures aren't any longer suited for high-noise or low-signal functions similar to intrusion detection. Detailing powerful methods to non-Gaussian susceptible sign detection, Adaptive Antennas and Receivers offers an authoritative advent to state of the art learn at the modeling, trying out, and alertness of those applied sciences. Edited via leading edge researcher and eminent specialist Melvin M. Weiner, this e-book is the 1st to combine 3 complex methods to non-Gaussian susceptible sign detection right into a unmarried reference: homogeneous partitioning of the surveillance quantity, adaptive antennas, and adaptive receivers. Comprising self-contained chapters contributed through well known specialists equivalent to Donald D. Weiner and Ronald Fante, every one bankruptcy explores the suggestions, theoretical foundation, and purposes of the procedure less than dialogue. The booklet considers sign detection within the presence of exterior noise resembling muddle residue, interference, atmospheric noise, jammers, exterior thermal noise, in vivo surrounding tissue, and camouflaging fabric, making it perfect to be used throughout a wide spectrum of functions. This authoritative reference offers greater than 750 figures and tables, 1460 equations, and 640 references. Adaptive Antennas and Receivers is a perfect source for bettering functionality in surveillance, conversation, navigation, man made intelligence, machine tomography, neuroscience, and intrusion detection platforms, to call just a couple of.

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Sample text

A violation occurs when the SPA output data implies the presence of a signal which is not a member of the allowable class of input signals. For example, disturbances arising from cells in the clear region are always modeled in this work as Gaussian processes, because of the expectation that BN is Gaussian. Suppose, when output data from an SPA instance implies that the disturbance from a cell in the clear region is non-Gaussian, a violation type of discrepancy would result. 2. The second type of discrepancy is referred to as a conflict.

In a sense, the diagnosis procedure maps symptoms (discrepancies) to hypothesized underlying causes (distortions). For example, assume the sample mean of a CL patch is repeatedly being evaluated by processing 50 samples at a time. Although, the first eight trials result in values close to zero, the ninth trial produces a large negative value for the mean. This represents a conflict of the first kind. The diagnosis procedure may surmise that the conflict may be due to the presence of one or more outliers.

By way of example, assume that the previous ten test cells were classified as having been in the clear. Our expectation hypothesis, therefore, is that the 11th test cell will also be in the clear. If the 11th test cell fails the Gaussian, zero-mean, and small power level inferences, we have a conflict of the first type. On the other hand, if the Gaussian and zero-mean inferences are found to have support while the small power level inference is unsupported, we have a conflict of the second type. SOUs and corresponding linked hypotheses would be identified with each unsupported inference and additional signal processing would be carried out to reduce the level of SOUs as time permits.

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Adaptive antennas and receivers by Melvin M. Weiner

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