Research on Signal Processing Algorithms in GPS Receivers

Details Research on Signal Processing Algorithms in GPS Receivers Research on Signal Processing Algorithms in GPS Receivers

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pabei..25...84c&link_type=abstract

Progress in Astronomy (ISSN 1000-8349), Vol. 25, No. 1, p. 84 - 95 (2007)

Astronomy and Astrophysics

Astronomy

Gps Receiver, Matched Filtering Method, Fft Correlation Method, Frequency Locked Loop, Phase Locked Loop, Delay-Early Locked Loop, Gps Receivers, Matched Filtering Method, Fft Correlation Method, Frequency Locked Loop, Phase Locked Loop, Delay-Early Locked Loop, Signal Processing

Scientific paper

The modern standard satellite navigation receivers are commonly based on ASICs for signal processing and fast microprocessors for application calculations. The software satellite navigation receiver is also developed in recent years. The research on software receivers becomes one trend of satellite navigation receiver. For algorithms on signal processing play an important role in satellite navigation receivers, the paper illuminates the signal processing algorithms in detail. The GPS receiver is widely used at present. So the paper places emphasis on signal processing algorithms about GPS receiver. Signal processing algorithms include three aspects: the algorithm on signal acquisition, the algorithm on carrier tracking and the algorithm on PRN (pseudo random noise) code tracking. In the part of signal acquisition, the method of using FFT to get the result of circular correlation is introduced. The paper carefully researches the method and discusses the derivation process of the method. In the part of carrier tracking, the paper describes the principle of frequency locked loop (FLL) and phase locked loop (PLL) and analyzes the principle of loop filter. The method of transition from s-domain to z-domain is introduced. The computation of noise bandwidth of the loop filter are expatiated and the structures of one-step digital loop filter, two-step digital loop filter and three step are given. Other parameters of loop filters are also given. In the part of code tracking, delay-early locked loop (DLL) is introduced. Theoretical analysis and experiment results demonstrate the algorithms in the paper. Through the simulation testing, the performance of combination of PLL and FLL can be acknowledged.

Affiliated with

Also associated with

No associations

Rating

Research on Signal Processing Algorithms in GPS Receivers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Research on Signal Processing Algorithms in GPS Receivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Research on Signal Processing Algorithms in GPS Receivers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1839863