A method and a system for reducing time to first fix (TTFF) in a satellite navigation receiver generate a navigation data structure including three sub-frames. A first sub-frame and a second sub-frame accommodate selective ephemeris data. The third sub-frame accommodates a text message including almanac data optiona...
A satellite navigation receiver and method for enhancing time to first fix are provided. The receiver comprises a radio frequency (RF) translator, correlator blocks, and a navigation data processor. The RF translator conditions navigation signals over carrier frequencies. The correlator blocks comprise a predetermin...
A method for acquisition of a weak signal from a satellite in the presence of a strong interfering signal from another satellite is disclosed. The method encompasses identifying the auto-correlation peak due to the weak satellite signal
.from the cross correlation peaks due to the strong satellite signal. This inv...
An arrangement of M signal generators in a global navigation satellite signal baseband chip for obtaining a sequential chip correlation array is provided. The sequential chip correlation array generates MxN code bit sequences, M in-phase and M quadrature-phase carrier mixed signals. The M signal generators are arran...
A method and system for transmitting navigation data to a satellite navigation receiver for reducing time to first fix is provided. A signal generation system generates a navigation data structure comprising a first sub-frame and a second sub-frame for accommodating selective ephemeris data, a third sub-frame for ac...
A global navigation satellite system (GNSS) receiver (100) including a sequential chip mixed frequency correlator array system (SCMFCAS) (106) is provided. The SCMFCAS (106) includes P signal generators (115, 123, and 124), each receiving N samples of intermediate frequency (IF) data of a GNSS signal. Each signal ge...
LOW POWER MINIMAL RATE GLOBAL NAVIGATION SATELLITE SYSTEM SIGNAL TRACKING SYSTEM
A global navigation satellite system (GNSS) signal tracking system (GNSSSTS) (106), deployed in a tracking channel (105a) of a GNSS baseband engine (102), includes a piecewise down sampling module (109) for generating code bit accumula...