Supplementary data for "PPP-RTK for High-Accuracy GNSS Positioning: A PRISMA 2020 Systematic Review"

Supplementary Materials of the systematic review “PPP-RTK for High-Accuracy GNSS Positioning: A PRISMA 2020 Systematic Review” (Cutugno, Ferrara, Parente, Pugliano, Robustelli).File S1: PRISMA 2020 checklist.File S2: record-level dataset of the 565 records exported from Scopus and the Web of Science Core Collection (search of 25 June 2026), the 319 unique works after de-duplication with the screening, full-text retrieval and eligibility decision of each, and the counts behind Figures 1–4 and Table 4 of the article.File S3: sector-assignment workbook: keyword lists and weights, keyword matches, provisional and final application sector (S1–S5) of each of the 198 included studies, and the reason for each reassignment.