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Table 4 The variance for BEM-based channel estimation methods in different taps

From: EKF/UKF-based channel estimation for robust and reliable communications in V2V and IIoT

Number of taps

LS

EKF

UKF

3

9.4563e −04

7.9185e −04

6.5175e −04

6

4.6187e −04

3.8377e −04

3.3921e −04

9

5.4519e −04

4.3288e −04

3.3844e −04

12

5.7751e −04

2.8968e −04

2.5852e −04

15

3.4490e −04

1.4435e −04

1.3037e −04

18

4.4029e −04

1.8785e −04

1.8235e −04