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MULTIPATH DETECTION METHOD, MULTIPATH DETECTION PROGRAM, MULTIPATH DETECTION DEVICE, AND GNSS SIGNAL RECEIVING DEVICE
MULTIPATH DETECTION METHOD, MULTIPATH DETECTION PROGRAM, MULTIPATH DETECTION DEVICE, AND GNSS SIGNAL RECEIVING DEVICE
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机译：多路径检测方法，多路径检测程序，多路径检测设备和GNSS信号接收设备
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摘要
PROBLEM TO BE SOLVED: To achieve a multipath detection method capable of more accurately calculating multipath delay quantity.;SOLUTION: A receiving signal is acquired (S101) and a multipath state including an amplitude ratio between a direct wave signal and an indirect wave signal is detected (S102). By using three pairs of early correlation processing signals and late correlation processing signals, a first pseudo distance ρ1, a second pseudo distance ρ2 and a third pseudo distance ρ3 are respectively calculated (S103). By using the first pseudo distance ρ1, the second pseudo distance ρ2 and the third pseudo distance ρ3, a first pseudo distance difference value Δρ21 and a second pseudo distance difference value Δρ31 are calculated (S104). The first pseudo distance difference value Δρ21 and the second pseudo distance difference value Δρ31 are corrected and normalized based on the amplitude ratio (S105). The multipath delay quantity is determined from a relation table between the pseudo distance difference values and the multipath delay quantity based on the normalized first pseudo distance difference value Δρ21 and second pseudo distance difference value Δρ31(S106).;COPYRIGHT: (C)2013,JPO&INPIT
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