Research Article

A New GPT2w Model Improved by PSO-LSSVM for GNSS High-Precision Positioning

Table 2

Comparison of coordinate accuracy between GPT2w and PSO-LSSVM at selected stations.

GNSS stationsGPT2w-coordinate RMS (mm)PSO-LSSVM-coordinate RMS (mm)Percentage of improvement

HKKT0.43660.75040.31880.29360.41170.175732.75%45.14%44.89%
HKOH0.34990.59350.27350.23240.34950.148333.58%41.11%45.78%
HKPC0.26780.53160.25850.22160.36540.155517.25%31.26%39.85%
HKSC0.48320.53910.25140.29750.37680.142538.43%30.11%43.32%
HKSS0.26100.52170.25430.24390.37920.19176.55%27.31%24.62%
HKST0.27660.51700.24620.25690.46270.21897.12%10.50%11.09%