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A new, unambiguous, cost-effective discriminator is introduced that maintains the multipath mitigation property of binary offset carrier (BOC) $(n,n)$ signals such as BOC(1,1). The multipath mitigation performance of different discriminators is evaluated, including the "BOC-PRN (\RE+L)" discriminator proposed previously by the authors, and examines the associated noncoherent tracking structures...
Multipath is one of the dominant error sources of code tracking in indoor and other harsh environments. In this research work, a new colored noise unscented Kalman filter (UKF) is introduced to estimate the multipath parameters of weak GPS signal. For improving the carrier to noise ratio, it uses a block-averaging signal pre-processing method (BAP) to process the received weak GPS signal. The signal...
Multipath is one of the paramount error sources in code tracking. Optimized Multiple Gate Delay structures have been proposed before for SinBOC(1,1)-modulated signal and infinite receiver bandwidth, in order to cope better with multipath. The new modulation, Composite Binary Offset Carrier (CBOC) modulation, used in Galileo E1 band makes it possible that either SinBOC(1,1) or CBOC reference code could...
Code tracking loop for M-ary/SS systems using outputs gating of correlators(GCL) method is proposed for the code tracking of a communication system based on M-ary/SS scheme in which one of several sequences prepared on the tranmitter side depending on several bits of data. In the correlator outputs gating method, a certain threshold level is assumed and all correlatorspsila outputs are blocked when...
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