OTFS Achievable Ranging Performance in LEO Urban Areas

Guillem Foreman Campins; Jose A. Lopez-Salcedo; Elena-Simona Lohan

doi:10.1109/NAVITEC63575.2024.10843467

OTFS Achievable Ranging Performance in LEO Urban Areas

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

2 Citations (Scopus)

Abstract

During the past decades, seamless navigation has
become crucial for numerous Position-Navigation-Timing (PNT)-
based applications, with Global Navigation Satellite Systems
(GNSS) serving as the primary provider for PNT solutions.
However, GNSS faces limitations and severe threats which are
limiting to the increasing needs in positioning applications.
The use of Low-Earth-Orbit (LEO) satellites for positioning is
projected to be a strong alternative to standard GNSS due to
its potential improvements in key metrics for positioning. In this
regard, the present paper unveils the use of the Orthogonal Time
Frequency Space (OTFS) modulation for a standalone LEOPNT system, and it discusses how OTFS can be tailored to
any LEO-PNT scenario to obtain excellent multipath mitigation
capabilities. Specifically, these are achieved by using the Doppler
characterisation of LEO multipath signals, which combines
well with the high Doppler resolution of OTFS. A statistical
analysis on the relative delay and Doppler of the reflected
signals is conducted during several passes of two real LEO
satellites over a receiver in an urban environment, from which
OTFS is configured given a requirement on ranging accuracy.
Subsequently, the hypothetical use of OTFS for these two real
LEO satellites is analysed through simulations on its ranging
accuracy, demonstrating its improvements over the standard
Binary Phase Shift Keying (BPSK) modulation used in GNSS.
Index Terms—LEO-PNT, OTFS, delay-Doppler processing

Original language	English
Title of host publication	2024 11th Workshop on Satellite Navigation Technology (NAVITEC)
Publisher	IEEE
ISBN (Electronic)	979-8-3503-5685-4
DOIs	https://doi.org/10.1109/NAVITEC63575.2024.10843467
Publication status	Published - 2024
Publication type	A4 Article in conference proceedings
Event	Workshop on Satellite Navigation Technology - European Space Research and Technology Centre (ESA-ESTEC), Noordwjik, Netherlands Duration: 11 Dec 2024 → 13 Dec 2024

Publication series

Name	ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing
ISSN (Electronic)	2325-5455

Conference

Conference	Workshop on Satellite Navigation Technology
Country/Territory	Netherlands
City	Noordwjik
Period	11/12/24 → 13/12/24

Funding

This work was supported by the Tampere University Dean s doctoral grant program and by the Jane and Aatos Erko Foundation and by Teknologiateollisuus 100-year Foundation, under the project INCUBATE. This work has also been supported by the LEDSOL project, funded within the LEAP-RE programme by the European Union s Horizon 2020 Research and Innovation Program under Grant Agreement 963530 and by the Academy of Finland grant agreement 352364, and partly supported by the Spanish Agency of Research (projects PDC2023-145858-I00 and PID2023-152820OB-I00).

Funders	Funder number
Jane ja Aatos Erkon Säätiö
Tampere University
Teknologiateollisuus 100-Year Foundation
European Union ’s Horizon 2020 research and innovation program	963530
Research Council of Finland	352364
Spanish Agency of Research	PID2023-152820OB-I00, PDC2023-145858-I00

Publication forum classification

Publication forum level 0

ASJC Scopus subject areas

General Computer Science
Electrical and Electronic Engineering

Access to Document

10.1109/NAVITEC63575.2024.10843467

Cite this

@inproceedings{f337023de5d34bc48ced59ea6747596f,

title = "OTFS Achievable Ranging Performance in LEO Urban Areas",

abstract = "During the past decades, seamless navigation has become crucial for numerous Position-Navigation-Timing (PNT)- based applications, with Global Navigation Satellite Systems (GNSS) serving as the primary provider for PNT solutions. However, GNSS faces limitations and severe threats which are limiting to the increasing needs in positioning applications. The use of Low-Earth-Orbit (LEO) satellites for positioning is projected to be a strong alternative to standard GNSS due to its potential improvements in key metrics for positioning. In this regard, the present paper unveils the use of the Orthogonal Time Frequency Space (OTFS) modulation for a standalone LEOPNT system, and it discusses how OTFS can be tailored to any LEO-PNT scenario to obtain excellent multipath mitigation capabilities. Specifically, these are achieved by using the Doppler characterisation of LEO multipath signals, which combines well with the high Doppler resolution of OTFS. A statistical analysis on the relative delay and Doppler of the reflected signals is conducted during several passes of two real LEO satellites over a receiver in an urban environment, from which OTFS is configured given a requirement on ranging accuracy. Subsequently, the hypothetical use of OTFS for these two real LEO satellites is analysed through simulations on its ranging accuracy, demonstrating its improvements over the standard Binary Phase Shift Keying (BPSK) modulation used in GNSS. Index Terms—LEO-PNT, OTFS, delay-Doppler processing",

author = "\{Foreman Campins\}, Guillem and Lopez-Salcedo, \{Jose A.\} and Elena-Simona Lohan",

year = "2024",

doi = "10.1109/NAVITEC63575.2024.10843467",

language = "English",

series = "ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing",

publisher = "IEEE",

booktitle = "2024 11th Workshop on Satellite Navigation Technology (NAVITEC)",

address = "United States",

note = "Workshop on Satellite Navigation Technology ; Conference date: 11-12-2024 Through 13-12-2024",

}

Foreman Campins, G, Lopez-Salcedo, JA & Lohan, E-S 2024, OTFS Achievable Ranging Performance in LEO Urban Areas. in 2024 11th Workshop on Satellite Navigation Technology (NAVITEC). ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing, IEEE, Workshop on Satellite Navigation Technology, Noordwjik, Netherlands, 11/12/24. https://doi.org/10.1109/NAVITEC63575.2024.10843467

OTFS Achievable Ranging Performance in LEO Urban Areas. / Foreman Campins, Guillem; Lopez-Salcedo, Jose A.; Lohan, Elena-Simona.
2024 11th Workshop on Satellite Navigation Technology (NAVITEC). IEEE, 2024. (ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - OTFS Achievable Ranging Performance in LEO Urban Areas

AU - Foreman Campins, Guillem

AU - Lopez-Salcedo, Jose A.

AU - Lohan, Elena-Simona

PY - 2024

Y1 - 2024

N2 - During the past decades, seamless navigation has become crucial for numerous Position-Navigation-Timing (PNT)- based applications, with Global Navigation Satellite Systems (GNSS) serving as the primary provider for PNT solutions. However, GNSS faces limitations and severe threats which are limiting to the increasing needs in positioning applications. The use of Low-Earth-Orbit (LEO) satellites for positioning is projected to be a strong alternative to standard GNSS due to its potential improvements in key metrics for positioning. In this regard, the present paper unveils the use of the Orthogonal Time Frequency Space (OTFS) modulation for a standalone LEOPNT system, and it discusses how OTFS can be tailored to any LEO-PNT scenario to obtain excellent multipath mitigation capabilities. Specifically, these are achieved by using the Doppler characterisation of LEO multipath signals, which combines well with the high Doppler resolution of OTFS. A statistical analysis on the relative delay and Doppler of the reflected signals is conducted during several passes of two real LEO satellites over a receiver in an urban environment, from which OTFS is configured given a requirement on ranging accuracy. Subsequently, the hypothetical use of OTFS for these two real LEO satellites is analysed through simulations on its ranging accuracy, demonstrating its improvements over the standard Binary Phase Shift Keying (BPSK) modulation used in GNSS. Index Terms—LEO-PNT, OTFS, delay-Doppler processing

AB - During the past decades, seamless navigation has become crucial for numerous Position-Navigation-Timing (PNT)- based applications, with Global Navigation Satellite Systems (GNSS) serving as the primary provider for PNT solutions. However, GNSS faces limitations and severe threats which are limiting to the increasing needs in positioning applications. The use of Low-Earth-Orbit (LEO) satellites for positioning is projected to be a strong alternative to standard GNSS due to its potential improvements in key metrics for positioning. In this regard, the present paper unveils the use of the Orthogonal Time Frequency Space (OTFS) modulation for a standalone LEOPNT system, and it discusses how OTFS can be tailored to any LEO-PNT scenario to obtain excellent multipath mitigation capabilities. Specifically, these are achieved by using the Doppler characterisation of LEO multipath signals, which combines well with the high Doppler resolution of OTFS. A statistical analysis on the relative delay and Doppler of the reflected signals is conducted during several passes of two real LEO satellites over a receiver in an urban environment, from which OTFS is configured given a requirement on ranging accuracy. Subsequently, the hypothetical use of OTFS for these two real LEO satellites is analysed through simulations on its ranging accuracy, demonstrating its improvements over the standard Binary Phase Shift Keying (BPSK) modulation used in GNSS. Index Terms—LEO-PNT, OTFS, delay-Doppler processing

U2 - 10.1109/NAVITEC63575.2024.10843467

DO - 10.1109/NAVITEC63575.2024.10843467

M3 - Conference contribution

T3 - ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing

BT - 2024 11th Workshop on Satellite Navigation Technology (NAVITEC)

PB - IEEE

T2 - Workshop on Satellite Navigation Technology

Y2 - 11 December 2024 through 13 December 2024

ER -

OTFS Achievable Ranging Performance in LEO Urban Areas

Abstract

Publication series

Conference

Funding

Publication forum classification

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this