A Real-Time UWB Location and Tracking System Based on TWR-TDOA Estimation and a Simplified MPGA Layout Optimization

Table 2

Comparisons among different UWB position systems.

System	Algorithm	Accuracy (cm)
Ubisense [22]	AOA, TDOA	15–20
Zebra [23]	TDOA	30
Sewio [24]	TDOA	30–50
Asynchronous [25]	TDOA	15.2
Sync-free [26]	TDOA	20.4
This article	TWR-TDOA-KF	10