Title: ON ACCURATE, LOW-COMPLEXITY QUASI DOPPLER BASED LOCALIZATION

Year of Publication: Jul - 2013
Page Numbers: 85-92
Authors: Benjamin Babjak, Sandor Szilvasi, Peter Volgyesi
Conference Name: The Third International Conference on Digital Information and Communication Technology and its Applications (DICTAP2013)
- Czech Republic

Abstract:


The aim of this paper is to discuss the Quasi Doppler or Pseudo Doppler bearing estimation method and show how contemporary digital signal processing and some minimal a priori knowledge of the signal can improve the method and make it relevant even today for low complexity localization purposes. The basic idea is that nonuniform switching of antennas on the transmitter side, and careful examination of phase jumps can mitigate or even completely cancel out the adverse effects of phase changes (due to modulation, clock mismatch, clock jitter) on the bearing estimation process.