Application of Optimization Techniques to Spectrally Modulated Spectrally Encoded Waveform Design

<p>A design process is demonstrated for a coexistent scenario containing Spectrally Modulated Spectrally Encoded (SMSE) and Direct Sequence Spread Spectrum (DSSS) signals. Coexistent SMSE-DSSS designs are addressed under both perfect and imperfect DSSS code tracking conditions using a noncoherent delay-lock loop (DLL). Under both conditions the number of SMSE subcarriers and subcarrier spacing are the optimization variables of interest. For perfect DLL code tracking conditions the GA and RSM optimization processes are considered independently with the objective function being endto- end DSSS bit error rate. A hybrid GA-RSM optimization process is used under more realistic imperfect DLL code tracking conditions. In this case optimization is accomplished using a correlation degradation metric with the GA process being first applied to generate a coarse solution followed by RSM processing which provides the final optimized solution. This work has successfully expanded the practical utility of a previously developed tool the original SMSE framework by demonstrating a more efficient structured means for coexistent waveform design that replaces previous trial and error methods.</p><p>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.</p><p>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.</p><p>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.</p>