Smart Phone and Next Generation Mobile Computing

430 Smart Phone and Next-Generation Mobile Computing

Bayesian filter location sensing system, a perceptual model, p(z|x), is

needed prior to location estimation. This model can be considered a

scene of feature maps used in the scene analysis scheme. The feature

in the map of the perceptual model is the likelihood of observing

a sensor measurement z (e.g., 2-m ultrasound measurement) given

an object’s state (position) x in a room. Construction of the map

can be performed by autonomous robots. As mentioned earlier, the

principle of sensor fusion is to combine multiple location sensing

technologies of different error distributions deployed in the same

geographic space; therefore, to apply Bayesian filtering to a sensor

fusion system, a perceptual model