Modelling and Simulation of Pseudolite-based Navigation: A GPS-independent Radio Navigation System

Krishneshwar Tiwary; S.K. Behera; G. Sharada; Amarjit Singh

doi:10.14429/dsj.60.577

Krishneshwar Tiwary Defence Research and Development Laboratory, Hyderabad
S.K. Behera Defence Research and Development Laboratory, Hyderabad
G. Sharada Defence Research and Development Laboratory, Hyderabad
Amarjit Singh Defence Institute of Advanced Technology, Pune

DOI: https://doi.org/10.14429/dsj.60.577

Keywords: Evidence theory, fuzzy sets theory, multi-sensor fusion, target recognition

Abstract

The use of global positioning system (GPS) for precision guidance of weapons is being questioned due to its vulnerability of jamming and spoofing for non-military code users. In this paper a novel approach is proposed for guidance of weapons where use of GPS or other civilian Satellite-based navigation system is threatened. The proposed approach is modelled and simulated using SIMULINK for realistic trajectories and scenario. The results of simulation are validated with the actual GPS data.

Author Biographies

Krishneshwar Tiwary, Defence Research and Development Laboratory, Hyderabad

He has obtained his MTech (Computer Science and Engg) from Indian Institute of Technology, Roorkee and currently pursuing his PhD from Defence Institute of Advanced Technology (Deemed University), Pune. He is presently working as Scientist E at Defence Research and Development Laboratory (DRDL), Hyderabad. Some of his specific contributions are development of countdown timing system, telemetry ground station, DGPS system and IV&V of mission critical software for the Integrated Guided Missile Development Program of DRDO. His current interests include: Development of pseudolite-based navigation system, soft computing based target identification, and advanced estimation techniques.

S.K. Behera, Defence Research and Development Laboratory, Hyderabad

He has obtained his BTech from NIT, Rourkela, and is presently working as Scientist at DRDL. His specific contributions are development of DGPS system and time synchronization algorithm development. His present areas of expertise are: modelling and simulation for GPS based applications and pseudolite-based navigation system and verification and validation of mission critical software for guided missile program of DRDO.

G. Sharada, Defence Research and Development Laboratory, Hyderabad

She has obtained her MTech (Computer Science and Engg) from Osmania University, Hyderabad. She is presently working as Scientist F at DRDL. Presently she is working for design and development of automated C4I systems for missile and air defence applications. Her areas of interest include: Fault-tolerant system design for mission critical applications, air situation processing, and distributed collaborative combat management Systems for air defence applications.

Amarjit Singh, Defence Institute of Advanced Technology, Pune

He has obtained his MTech Mechanical, Guided Missiles from Pune University and PhD,Hypersonic Aerodynamics from Cranfield University, UK. He is presently working as Scientist at Defence Institute of Advanced Technology DIAT, Pune. Some of his specific contributions are Setting up test and research facilities such as subsonic and supersonic wind tunnels, campus wide network CROWN, advanced computing facilities. His current areas of interest include High-speed internal flows, shock wave boundary layer interactions, aircraft design, and computational fluid dynamics.

Defence Science Journal, 2010, 60(5), pp.541-550, DOI:http://dx.doi.org/10.14429/dsj.60.577