GPS positioning method and GPS positioning device

According to a condition defined in a working hypothesis set by a working hypothesis setting unit WH(i), step ST11 acquires a probability distribution function having a reception signal condition conditioned in unknown parameters of a reception signal amplitude a, a pseudo-distance p, and a navigati...

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Bibliographic Details
Main Authors NAGANO TAKAFUMI, IWAMOTO KIJI
Format Patent
LanguageChinese
English
Published 09.03.2011
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:According to a condition defined in a working hypothesis set by a working hypothesis setting unit WH(i), step ST11 acquires a probability distribution function having a reception signal condition conditioned in unknown parameters of a reception signal amplitude a, a pseudo-distance p, and a navigation bit bm by a GPS signal sample (S2). This conditioned probability distribution function P(Rm|a, p, bm) is peripherized concerning the pseudo-distance p so as to obtain a peripheral ex post facto probability distribution function P(p|Rm, a). Finally, it is possible to obtain a pseudo-distance-depending function proportional to the peripheral ex post facto probability distribution function P(p|Rm, a). Step ST12 decides (a value of) a pseudo-distance p giving the maximum value of the pseudo-distance-depending function as an estimated pseudo-distance.
Bibliography:Application Number: CN200580051332