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EURASIP Journal on Advances in Signal Processing

Table 1 Sensitivity to parameter perturbation

From: Functional quantizer design for source localization in sensor networks

Mismatch type

Simulation results

Decay factor α

1.8

1.9

2

2.1

2.2

LE (normal)

0.8189

0.5418

0.3644

0.6160

1.1880

LE (uniform)

0.8416

0.5557

0.3715

0.6222

1.1718

Gain factor g i

0.8

0.9

1

1.1

1.2

LE (normal)

0.7951

0.4859

0.3644

0.4330

0.5598

LE (uniform)

0.8008

0.4973

0.3715

0.4408

0.5762

  1. Localization error (LE) of FLSQ with R i  = 3 due to variations of the model parameters. LE = 1 100 ∑ l = 1 100 E l (∥x− x ̂ Q ∥ 2 ), where E l is the average localization error for the l th five-sensor configuration and is expressed in meters. LE (normal) is for the test set from normal distribution with a mean of (5,5) and unit variance and LE (uniform) from uniform distribution.
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