In this paper, we study the feasibility of coupling the PN ranging with filtered high-order modulations, and investigate the simultaneous demodulation of a high-rate telemetry stream while tracking the PN ranging sequence. Accordingly, we design a receiver scheme that is able to perform a parallel cancellation, in closedloop, of the ranging and the telemetry signal reciprocally. From our analysis, we find that the non-constant envelope property of the modulation causes an additional jitter on the PN ranging timing estimation that, on the other hand, can be limited by properly sizing the receiver loop bandwidth. Our study proves that the use of filtered high-order modulations combined with PN ranging outperforms the state-of-the-art in terms of spectral efficiency and achievable data rate, while having comparable ranging performance

On the use of Pseudo-Noise Ranging with high-rate spectrally-efficient modulations / Ripani, Barbara; Modenini, Andrea; Garello, Roberto; MAIOLINI CAPEZ, Gabriel; Montorsi, Guido. - ELETTRONICO. - 1:(2021), pp. 1-7. ((Intervento presentato al convegno Proceedings of the 16th International Conference on Space Operations tenutosi a Cape Town, South Africa nel 3 - 5 May 2021.

On the use of Pseudo-Noise Ranging with high-rate spectrally-efficient modulations

Barbara Ripani;Roberto Garello;Gabriel Maiolini Capez;Guido Montorsi
2021

Abstract

In this paper, we study the feasibility of coupling the PN ranging with filtered high-order modulations, and investigate the simultaneous demodulation of a high-rate telemetry stream while tracking the PN ranging sequence. Accordingly, we design a receiver scheme that is able to perform a parallel cancellation, in closedloop, of the ranging and the telemetry signal reciprocally. From our analysis, we find that the non-constant envelope property of the modulation causes an additional jitter on the PN ranging timing estimation that, on the other hand, can be limited by properly sizing the receiver loop bandwidth. Our study proves that the use of filtered high-order modulations combined with PN ranging outperforms the state-of-the-art in terms of spectral efficiency and achievable data rate, while having comparable ranging performance
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2942972