ff4e1473f61af666dddc5b4433ea1a36 EngPro_a2023v54n1p36.pdf 1d32a89e9dd1afe209df9f3aaf0d1db7b2e10fa7 EngPro_a2023v54n1p36.pdf 054c62dbe855d3c5f6b01f0b76ccc2acd7ee556de5e6dd16ff86ef6c08967410 EngPro_a2023v54n1p36.pdf Title: Analysis of Baseband Algorithms for LEO PNT Subject: This paper provides an analysis of the impact of transmitter dynamics on baseband algorithms for position, navigation and timing applications using a low Earth orbit constellation. In particular, the acquisition and tracking of signals with high dynamics have larger Doppler and Doppler drift values that might impair the use of standard methods. Our analysis combines a theoretical assessment of acquisition and tracking thresholds with a performance evaluation by means of a simulation. Three frequency bands are tested (UHF, S and Ka) and an open-source software receiver has been adapted for such a purpose. The results obtained show the potential feasibility of LEO-PNT at baseband level under minimal considerations. Keywords: LEO-PNT; GNSS; acquisition; tracking Author: Fran Fabra, José A. López-Salcedo and Gonzalo Seco-Granados Creator: LaTeX with hyperref Producer: pdfTeX-1.40.25 CreationDate: Thu Dec 7 09:24:51 2023 CET ModDate: Thu Dec 7 10:03:24 2023 CET Custom Metadata: no Metadata Stream: no Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 9 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 1954499 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- EXFJQN+URWPalladioL-Bold Type 1 Custom yes yes yes 10 0 OOUGPX+URWPalladioL-Roma Type 1 Custom yes yes yes 16 0 KMOVBR+URWPalladioL-Ital Type 1 Custom yes yes yes 21 0 IEITMD+PazoMath-Italic Type 1 Builtin yes yes yes 59 0 GIGFZE+CMR10 Type 1 Builtin yes yes yes 64 0 UFKNXE+CMSY10 Type 1 Builtin yes yes yes 69 0 SRYFKY+CMEX10 Type 1 Builtin yes yes yes 77 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2024-05-15 02:42:20 CEST RepresentationInformation: EngPro_a2023v54n1p36.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2024-05-14 15:56:25 CEST Size: 1954499 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 178 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: section.1 Item: Title: Theoretical Assessment Destination: section.2 Children: Item: Title: Acquisition Thresholds Destination: subsection.2.1 Item: Title: Tracking Thresholds Destination: subsection.2.2 Item: Title: Simulation Analysis Destination: section.3 Children: Item: Title: Results for Acquisition Destination: subsection.3.1 Item: Title: Results for Tracking Destination: subsection.3.2 Item: Title: Discussion Destination: section.4 Item: Title: References Destination: section.5 Info: Title: Analysis of Baseband Algorithms for LEO PNT Author: Fran Fabra, José A. López-Salcedo and Gonzalo Seco-Granados Subject: This paper provides an analysis of the impact of transmitter dynamics on baseband algorithms for position, navigation and timing applications using a low Earth orbit constellation. In particular, the acquisition and tracking of signals with high dynamics have larger Doppler and Doppler drift values that might impair the use of standard methods. Our analysis combines a theoretical assessment of acquisition and tracking thresholds with a performance evaluation by means of a simulation. Three frequency bands are tested (UHF, S and Ka) and an open-source software receiver has been adapted for such a purpose. The results obtained show the potential feasibility of LEO-PNT at baseband level under minimal considerations. 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