OpenMP을 활용한 KF-RAIM의 병렬화기법
Parallelizing KF-RAIM with OpenMP: Execution Time Analysis
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Monitoring the integrity of global navigation satellite systems is important to continuously and stably operate their navigation systems. KF-RAIM has been developed to guarantee the integrity of high-precision navigation solutions such as PPP. This paper presents a KF-RAIM algorithm with an OpenMP-based parallel structure. Compare with the serial structure, the proposed structure provides the same protection levels and thresholds while reducing the KF-RAIM execution time. The use of a look-up table can further decrease the execution time with only centimeter-level differences in the protection level. The simulation results validate the effectiveness of the proposed structure in the view of the computation time.
Abstract
Monitoring the integrity of global navigation satellite systems is important to continuously and stably operate their navigation systems. KF-RAIM has been developed to guarantee the integrity of high-precision navigation solutions such as PPP. This paper presents a KF-RAIM algorithm with an OpenMP-based parallel structure. Compare with the serial structure, the proposed structure provides the same protection levels and thresholds while reducing the KF-RAIM execution time. The use of a look-up table can further decrease the execution time with only centimeter-level differences in the protection level. The simulation results validate the effectiveness of the proposed structure in the view of the computation time.