This paper describes and demonstrates an assisted GPS technique, termed “Collective
Detection,” for combining satellite correlograms to enable rapid acquisition and direct …

This paper describes the unique collective detection algorithm used in weak signal
environments as well as statistics of its performance in both simulated and live scenarios …

The purpose of this paper is to present the current capability of the Software GPS receiver to
do acquisition and real-time tracking of four or more GPS satellite signals and provide a …

This paper describes the improvements to acquisition that can be gained by combining
signals in terms of the theoretical reduction in C/N0 acquisition for given probability of false …

A real-time GPS L1 C/A-code software receiver has been implemented on a Digital Signal
Processor (DSP). The receiver exploits FFT-based techniques to perform autonomous …

A GPS acquisition system which achieves extremely short search times is presented. The
system requires no prior knowledge of position or time. Using a 50MHz clock frequency, 25 …

Collective detection is a GNSS receiver signal processing technique that combines the
correlator output of all satellite channels and projects them onto the position-clock space to …

The distributed SnapTrackÔ server-aided GPS system architecture and DSP software-based
receiver solution draw from the best of GPS and wireless communications technology. The …

Over the years and especially since 2000 when the Selec tive Availability (SA) feature of the
Global Positioning Sys tem (GPS) was deactivated, satellite based positioning has become …

Signal sensitivity and cross-correlation are two important issues for GPS signal processing
indoor. This paper presents the implementation of an enhanced GPS software receiver for …