Diamond DA20-C1 Eclipse — Other Documents

This document presents a research study focused on the accuracy of the System for Differential Corrections and Monitoring (SDCM) augmentation system in aerial navigation, specifically using data from a Diamond DA20-C1 aircraft. The authors developed a modified algorithm to improve the accuracy of positioning solutions by utilizing two onboard GNSS receivers. The study highlights the importance of SDCM in enhancing navigation performance and meeting ICAO certification requirements. The research was conducted in Poland, with test flights performed to gather GNSS kinematic data, which were analyzed to assess the effectiveness of the proposed algorithms in improving positioning accuracy. The findings indicate significant improvements in accuracy when using the dual-receiver approach compared to single-receiver solutions.

• The SDCM system can improve positioning accuracy by 56–80% compared to single GNSS receiver solutions.
• The study utilized two GNSS receivers: Trimble Alloy and Septentrio AsterRx2i, onboard a Diamond DA20-C1 aircraft.
• Flight tests were conducted in northeastern Poland, with GNSS data recorded at 1-second intervals.
• Position accuracy was assessed using ellipsoidal coordinates (latitude, longitude, height).
• The proposed algorithms for dual receivers significantly enhanced the resultant accuracy of SDCM positioning.