Performance Evaluation of DGNSS Receiver for Dynamic Military Applications

Moiz Chasmai; Gagandeep Purohit; Arun Barde; Sandeep Sandeep; Prashant Kumar; Abhijit Kamble

doi:10.14429/dsj.74.18716

Moiz Chasmai DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0002-5233-1544
Gagandeep Purohit DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0002-3786-9709
Arun Barde DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0003-3146-9496
Sandeep Sandeep DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0001-5907-9575
Prashant Kumar DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0003-2287-4860
Abhijit Kamble DRDO-Research & Development Establishment (Engineers), Pune – 411015, India https://orcid.org/0000-0001-8637-8298

DOI: https://doi.org/10.14429/dsj.74.18716

Keywords: DGNSS, Lever arm, Location marking, Rover, INS

Abstract

In military applications, a highly accurate and precise navigation system is necessary for some ground-based combat system applications to navigate the vehicle and mark the location of the fuses and pickets laid by the mobile equipment. Few companies across the globe have developed expertise in manufacturing Global Navigation Satellite System (GNSS) receivers with Real Time Kinematics (RTK) capability along with integrated INS. On mobile equipment, it is not always possible to precisely place the Differential GNSS (DGNSS) antenna and GNSS receiver at the point for which the data needs to be marked. For such applications, lever arm calculation needs to be implemented. Also, due to uneven terrain conditions and slopes, the vehicle undulates up to 10o about its longitudinal and transverse axis. This dynamic condition induces considerable errors in the actual data. During the fuse laying process, there is also a continuous requirement for real-time location data in the GNSS-denied environment for a short period. INS was integrated with the GNSS receiver. We discuss test methodology for GNSS receiver performance evaluation. Experimentations were performed, taking into consideration these requirements. Data collected are also analyzed and discussed. Test results confirmed that the module is accurate with an accuracy of a few centimeters.