Table 1 The standard deviation of RSSI and TOF ranging values at each test point.

From: Research on indoor positioning method based on LoRa-improved fingerprint localization algorithm

Test points

Number of test data

RSSI value (standard deviation)

RANGE value (standard value)/m

a

186

2.70

0.74

b

166

3.41

1.48

c

192

3.03

1.24

d

158

3.97

3.34

e

183

4.02

2.03

f

176

2.32

0.76

g

197

4.23

2.62

h

189

3.20

1.30

i

193

4.09

1.96

j

175

3.47

1.84

k

169

3.48

1.39

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