Investigation of the Standalone and Combined Performance of IRNSS and QZSS Constellations over the Asia-Pacific Region

Ansari K.

WIRELESS PERSONAL COMMUNICATIONS, cilt.130, sa.4, ss.2887-2901, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 130 Sayı: 4
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s11277-023-10408-1
  • Dergi Adı: WIRELESS PERSONAL COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC
  • Sayfa Sayıları: ss.2887-2901
  • Karadeniz Teknik Üniversitesi Adresli: Hayır

Özet

The study investigates a relative analysis of two regional navigation satellite systems namely the Indian regional navigation satellite system (IRNSS) and the Quasi-zenith satellite system (QZSS) working in the Asia-Pacific region. It was expected that the combined precise point positioning (PPP) will attain a highly stable and accurate positioning compared to the IRNSS-only and QZSS-only solutions, but the visual results are different. In the case of India combined (IRNSS + QZSS), PPP has a minute level of increment in the east and up direction, compared to IRNSS standalone while in the case of Japan combined (QZSS + IRNSS), PPP becomes worse compared to QZSS alone. The obtained results indicate that it is difficult to achieve high accuracy of PPP in the Asia-Pacific region for (IRNSS + QZSS) constellations, hence a basic idea of wavelet algorithm is presented for the GNSS positioning. The results showed that wavelet analysis is an effective tool to detect and eliminate outliers and can attain high accuracy of PPP.