Channel (broadcasting)

Chip

Ultra-wideband

Bandwidth (computing)

Positioning system

Received signal strength indication

Compensation (psychology)

Mathematics

Wireless

Accelerometer

Operating system

Psychoanalysis

Ranging

Engineering

Psychology

Electronic engineering

Geometry

STM32

Indoor positioning system

Interference (communication)

Computer science

Real-time computing

Point (geometry)

Transmission (telecommunications)

Telecommunications

This paper presents a UWB-based(Ultra Wideband, UWB) indoor location ranging scheme and a method for improving accuracy through error compensation. UWB is widely used in high-precision indoor positioning because of its strong anti-interference performance, high transmission rate, wide bandwidth, low power consumption, and low transmission power. An inverse star location model was established based on the principle of spatial 4-point location. This scheme adopts STM32 to control the DW1000 to realize the UWB signal transceiving on the hardware. The software algorithm uses the TOF(Time of Flight, TOF) principle combined with the spatial 4-point positioning method to determine the position of the target point, uses the error compensation method to correct the data, and improves the accuracy of distance measurement positioning. Finally, the accuracy of the system was tested and corrected by experiments, and the effectiveness of the error compensation method in improving the system accuracy was verified.

Research on UWB-Based Indoor Ranging Positioning Technolog and a Method to Improve Accuracy