Method for processing in dual frequency civilian GPS receiver

   
   

A method and a system for L1/L2 phase and magnitude determination in satellite navigation equipment is disclosed herein. The method generates separate W code estimates for the L1 signal and the L2 signal, the estimates being uncorrelated with the error in the inphase and the quadrature components of the corresponding signals. The W code is estimated using both the L1 signal as well as the L2 signal. The L1 and L2 baseband signals are obtained from the corresponding RF signals. The baseband signals are added and then filtered using a non-causal FIR LPF. This filter has the property that the output at a time instant is uncorrelated with the input at that time instant. In the preferred embodiment, a one-W-code-bit I&D filter is used instead of a FIR LPF. In an alternate embodiment, a single W code estimate is obtained for both the L1 and the L2 signal.

 
Web www.patentalert.com

< Food products coated with 1, 6-GPS and 1, 1-GPM

< Method for measuring GPS air sensitivity and mobile terminal having function of measuring GPS air sensitivity

> Method and apparatus for GPS signal receiving that employs a frequency-division-multiplexed phased array communication mechanism

> Position location of multiple transponding platforms and users using two-way ranging as a calibration reference for GPS

~ 00129