Low Probability of Intercept Waveforms via Intersymbol Dither Performance Under Multipath Conditions
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This thesis examines the effects of multipath interference on Low Probability of Intercept (LPI) waveforms generated using intersymbol dither. This thesis expands on prior work by examining the effects of multipath interference on cooperative and non-cooperative receiver performance to assess the above method's effectiveness using a more realistic model of the physical transmission channel. The performance of a Minimum Mean Squared Error (MMSE) cooperative equalizer and a Constant Modulus Algorithm (CMA) non-cooperative equalizer are examined. Simulation results suggest that it is possible for...
This thesis examines the effects of multipath interference on Low Probability of Intercept (LPI) waveforms generated using intersymbol dither. This thesis expands on prior work by examining the effects of multipath interference on cooperative and non-cooperative receiver performance to assess the above method's effectiveness using a more realistic model of the physical transmission channel. The performance of a Minimum Mean Squared Error (MMSE) cooperative equalizer and a Constant Modulus Algorithm (CMA) non-cooperative equalizer are examined. Simulation results suggest that it is possible for cooperative receivers to accurately demodulate a transmitted waveform in multipath conditions, while degrading non-cooperative receiver performance. Several randomly generated multipath channels exhibited extremely poor equalization results, indicating a level of algorithm sensitivity to multipath conditions. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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