APPARATUS AND METHOD FOR NON-COHERENT INTEGRATION IN GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVER

摘要

PURPOSE: An apparatus and a method for non-coherent integration in a receiver of a global navigation satellite system are provided to perform capable of performing non-coherent integration and coherent integration in real time by considering code phase change according to the influence of a signal acquisition time and a doppler. CONSTITUTION: An apparatus for non-coherent integration in a receiver of a global navigation satellite system comprises a signal acquisition unit(110), a storing unit(120), a signal acquisition time measuring unit(130), a code phase compensating unit(140), and non-coherent integration unit(150). The signal acquisition unit performs a signal acquisition algorithm and obtains a signal acquisition result value of K and a signal acquisition result value of K+1. The storing unit stores the signal acquisition result value of the K and the signal acquisition result value of the K+1 in memory. The signal acquisition time measuring unit measures signal acquisition time necessary for obtaining the saved the signal acquisition result value of the K. The code phase compensating unit calculates the code phase shift amount of the signal acquisition result value of the K based on the measured signal acquisition time. The code phase compensating unit compensates for the signal acquisition result value of the K as much as the code phase shift amount. The non-coherent integration unit performs non-coherent integration the compensated signal acquisition result value of the K with the signal acquisition result value of the K+1.