Ultra-wideband high precision positioning system based on SDS-TWR algorithm

In order to solve the problem that the measurement accuracy of traditional methods in time-of-flight (TOF) technology is limited by clock and frequency drift, improve the precision of measuring further, the symmetric double sided two-way ranging (SDS-TWR) algorithm is adopted. The relevant comparative test are carried out through the positioning system. The test results show that the positioning accuracy of UWB positioning system based on SDS-TWR algorithm is 90.83% higher than that of the traditional two-way ranging (TWR) system, which verify the effectiveness of the proposed algorithm in the positioning system.