integration of gps ins for resilent navigaton - tlooto, The Most Powerful AcademicGPT

The integration of Global Positioning System (GPS) and Inertial Navigation System (INS) is fundamental for achieving resilient and reliable navigation, especially in applications requiring continuous and accurate position information even in challenging environments such as urban canyons, tunnels, maritime settings, and during deliberate GPS signal interference. --- Background: Complementary Strengths and Weaknesses GPS provides globally referenced position and velocity information with high long-term accuracy but is vulnerable to outages and degradation due to signal blockage, multipath, jamming, or spoofing. INS, on the other hand, is self-contained, delivering high-update-rate navigation by processing signals from gyroscopes and accelerometers, but its accuracy deteriorates over time due to cumulative sensor errors such as bias and drift. By fusing the instantaneous, drift-free velocities of GPS with the high-update-rate but drifting outputs of INS, the hybrid system achieves both r