ISBN-13: 9783639138245 / Angielski / Miękka / 2009 / 120 str.
ISBN-13: 9783639138245 / Angielski / Miękka / 2009 / 120 str.
With the growing demand for positioning in many military and civilian applications,there is an increasing requirement to enhance the performance of Global PositioningSystems (GPS) receivers. Adaptive signal processing is an enabling technology that iscapable of addressing problems related to signal blanking, detection, multipath andinterference mitigation. In this book, an adaptive signal processing technique isutilized to account for the effect due to satellite signal discontinuity, multipath andinterference. In air navigation, the rotation of aircraft results in discontinuous tracking of GPS signal.To solve this problem, a ring-type antenna array is used to prevent signal discontinuity and ahypothesis-test based detection scheme is developed so that the correct antennacombination can be formed to provide uninterrupted reception of GPS signals in thepresence of blanking, noise, and interferences.The dissertation also analyzes the spatial-temporal adaptive processing (STAP) performance ofvarious type antenna array configurations in interference environment. At last, a modified adaptive filter is utilized as solution for multipath mitigation.