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Method of despreading GPS spread spectrum signals
Method of despreading GPS spread spectrum signals
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机译:GPS扩频信号的解扩方法
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摘要
A method of despreading a GPS spread spectrum signal received at a mobile unit MSl with assistance from a base station BS1 includes (a) receiving and despreading GPS signals at the base station and deriving GPS signal information therefrom; (b) estimating the location of the mobile unit; (c) modifying the OPS signal information so as reflect the GPS signal characteristics as would be observed at the estimated location of the mobile unit; (d) transmitting the GPS signal information from the base station to the mobile unit; (e) generating replica signals containing PRN codes corresponding to those of the GPS signal using the modified GPS signal information; and (f) performing a correlation of the GPS signal and the replica signals in order to acquire the GPS signal.
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