Development of Combined GPS L1/L2C Acquisition and Tracking Methods Год выпуска: 2012Автор: Cyrille GernotИздательство: LAP Lambert Academic PublishingСтраниц: 252ISBN: 9783848417797Описание Acquiring and tracking signals such as legacy GPS L1 C/A can prove challenging under adverse conditions. Increasing the processing gain by 20 dB usually requires long coherent integrations which remain limited by the 50 Hz data bits transmitted. Fortunately, the GPS has been modernized with the addition of a civil signal, namely L2C, on the L2 frequency band. In this book, acquisition and tracking methods making use of both the L1 C/A and L2C signals in a combined manner are developed and tested. Three best-performing acquisition methods are described theoretically and compared. The first method implies a non-coherent summation of L1 and L2 correlator outputs. The second method implements an independent differential summation of L1/L2 correlator outputs and the third method represents a non-coherent plus dependent differential summation. Regarding tracking sensitivity, L1 C/A and L2C code and phase discriminator outputs are combined through a Kalman filter estimating the relative...
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Сергей, 22.10 Ув. Марина Михайловна, благодарю за Дипломную работу - все вроде бы в порядке. Получил от Вас доклад к дипломной работе. Доклад содержательный, спасибо!
