Show simple item record

dc.contributor.advisorTummala, Murali
dc.contributor.authorBruckner, Dean C.
dc.dateDec-92
dc.date.accessioned2014-01-29T23:37:36Z
dc.date.available2014-01-29T23:37:36Z
dc.date.issued1992-12
dc.identifier.urihttp://hdl.handle.net/10945/38503
dc.descriptionApproved for public release; distribution is unlimited.en_US
dc.description.abstractAutomatic pulse shape control is simulated for the N/FPN-42 and AN/FPN-44A tube type transmitters. A linear, time invariant (LTI) pole-zero model is developed for each transmitter at a typical operating point using the least squares modified Yule-Walker method and Shank's method. LTI models for a range of operating points are catenated to represent observed nonlinear behavior, and observed time variations are added. After these combined models are tested, a linear controller based on the method of steepest descent is implemented. These models, the control algorithm and transmitter system details such as power supply droop, dual rating and noise are then incorporated into a MATLAB simulation program. In a variety of realistic tests the control algorithm successfully shaped the Loran-C pulse, except that zero-crossing times were not always in tolerance and the algorithm showed a sensitivity to noise. The algorithm controlled Envelope-to-Cycle Difference, produced an entire Phase Code Interval of pulses while compensating for droop and phase code bounce, and produced a near- optimal transmitter drive waveform for the transmitter/antenna system using the dummy load.en_US
dc.description.urihttp://archive.org/details/automaticpulsesh1094538503
dc.format.extentxii, 186 p.: ill.;28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleAutomatic pulse shaping with the AN/FPN-42 and AN/FPN-44A Loran-C transmittersen_US
dc.typeThesisen_US
dc.contributor.secondreaderCristi, Roberto
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentElectrical and Computer Engineering
dc.description.serviceLieutenant, United States Coast Guarden_US
etd.thesisdegree.nameM.S. in Electrical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineElectrical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record