Study on non-time base conglobated position method for Loran-C

With the analysis of the principle of non-time base conglobated position method for Loran-C, algorithm of the position method is derived in detail. After that, position comparisons between single chains hyperbolic position algorithm and non-time base conglobated position method are analyzed with the measured time-difference from the experiments. The results show that position of conglobated position method is close to that of single chain hyperbolic position algorithm when the geometry dilution of precision(GDOP) is good, but with deteriorated GDOP, position precision can be improved obviously with non-time base conglobated position method adopted, and with the method, the singularity problem of single chain hyperbolic position algorithm when the anchor point is along the baseline can be solved effectively.