AC IRIG_B code demodulation for flight tests

Rong Yan; Xing Di; Jinxing Wu

doi:10.1117/12.3052937

3 January 2025 AC IRIG_B code demodulation for flight tests

Rong Yan, Xing Di, Jinxing Wu

Author Affiliations +

Proceedings Volume 13442, Fifth International Conference on Signal Processing and Computer Science (SPCS 2024); 134421S (2025) https://doi.org/10.1117/12.3052937
Event: Fifth International Conference on Signal Processing and Computer Science (SPCS 2024), 2024, Kaifeng, China

Abstract

In flight testing, precise time synchronization significantly influences the accuracy of test results. For critical applications such as data acquisition in airborne test equipment, accurate timing is fundamental to the reliable operation of flight test systems and the precision of test data. The IRIG (Inter-Range Instrumentation Group) standards for IRIG_B codes, established by the International Radio Consultative Committee, enhance the efficiency and reliability of time synchronization among different systems by defining methods and accuracy requirements for unified time synchronization. Despite existing research making strides in improving IRIG_B code demodulation performance, traditional techniques still encounter timing inaccuracies under extreme conditions. To address these challenges, this paper proposes a design solution for second pulse delay timing, presenting a detailed process for AC IRIG_B code demodulation. Experimental results validate the effectiveness and accuracy of this approach in generating and demodulating time information.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rong Yan, Xing Di, and Jinxing Wu "AC IRIG_B code demodulation for flight tests", Proc. SPIE 13442, Fifth International Conference on Signal Processing and Computer Science (SPCS 2024), 134421S (3 January 2025); https://doi.org/10.1117/12.3052937

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