[Retracted] Control Optimization Design of Radio Frequency Identification Technology in IoT Express Logistics Distribution System

Table 2

Influence of antenna settings on experimental results.

Antenna angle	Antenna selection	Positioning error (m)	Recognition rate (%)
45°	Left antenna only	0.98	83.7
	Right antenna only	2.53	43.4
	Dual antenna	0.69	88.0
90°	Left antenna only	0.80	89.8
	Right antenna only	0.98	82.0
	Dual antenna	0.36	94.8
135°	Left antenna only	4.92	33.3
	Right antenna only	6.72	17.6
	Dual antenna	4.18	40.5