SFOL DME Pulse Shaping Through Digital Predistortion for High-Accuracy DME
| Autor: | Euiho Kim, Sunghwa Lee, Jiwon Seo |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Signal Processing (eess.SP)
Pulse (signal processing) Computer science Amplifier Distance measuring equipment Aerospace Engineering Systems and Control (eess.SY) Electrical Engineering and Systems Science - Systems and Control Pulse shaping Predistortion Transmission (telecommunications) Distortion FOS: Electrical engineering electronic engineering information engineering Electronic engineering Electrical Engineering and Systems Science - Signal Processing Electrical and Electronic Engineering Electronic circuit |
| Zdroj: | IEEE Transactions on Aerospace and Electronic Systems. 58:2616-2620 |
| ISSN: | 2371-9877 0018-9251 |
| DOI: | 10.1109/taes.2021.3123934 |
| Popis: | The Stretched-FrOnt-Leg (SFOL) pulse is a high-accuracy distance measuring equipment (DME) pulse developed to support alternative positioning and navigation for aircraft during global navigation satellite system outages. To facilitate the use of the SFOL pulse, it is best to use legacy DMEs that are already deployed to transmit the SFOL pulse, rather than the current Gaussian pulse, through software changes only. When attempting to transmit the SFOL pulse in legacy DMEs, the greatest challenge is the pulse shape distortion caused by the pulse-shaping circuits and power amplifiers in the transmission unit such that the original SFOL pulse shape is no longer preserved. This letter proposes an inverse-learning-based DME digital predistortion method and presents successfully transmitted SFOL pulses from a testbed based on a commercial legacy DME that was designed to transmit Gaussian pulses. Submitted to IEEE Transactions on Aerospace and Electronic Systems |
| Databáze: | OpenAIRE |
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