Receivers for navigation satellite systems

作者: John Kilvington

DOI:

关键词: SignalElectronic engineeringFast Fourier transformBasebandSatellite systemMultiplier (Fourier analysis)Antenna (radio)Spread spectrumGlobal Positioning SystemEngineering

摘要: A receiver for a navigation satellite system such as NAVSTAR, including an antenna receiving incoming coded, time-based, spread spectrum signal which includes navigational data from plurality, P, of satellites, circuit deriving baseband I and Q components each the signals, circuitry digitizing components, Fast Fourier Transform (FFT) processor transforming digitized their respective codes, multiplier multiplying together transformed codes derived P signals to inverse transform then determine correlation peaks in signals.