The article explains the technical details of how DME (distance measuring equipment) works, particularly focusing on recording DME channels using LimeSDR technology. The author demonstrates the setup and configuration required to extract the DME channels for recording. Noteworthy components like GALI-39 LNA, splitter, and LimeSDR configuration are discussed. The author highlights the convenience of a DDC on the LMS7002M chip for signal processing. The article also delves into the preliminary analysis of the DME recording’s signal spike patterns and the concept of “squitter” affecting the number of pulse pairs received. The comprehensive technical content showcases the author’s expertise and commitment to exploring radio navigation systems.
https://destevez.net/2024/07/recording-dme-with-the-limesdr/