Vehicle classification system using a passive audio input to a n

Details Vehicle classification system using a passive audio input to a n Vehicle classification system using a passive audio input to a n

Filed on

1994-04-25

Date issued

1997-04-08

Examiner

Hafiz, Tariq R.

Other Related Categories

G06E 100, G06E 300, G06F 1518

Type

Patent

Status

active

Patent number

056196164

Description

ABSTRACT:
A system for classifying vehicles based on the sound waved produced by the vehicles receives analog sound pressure levels and converts them to a power spectrum. Fuzzification functions, such as asymmetric wedge shaped functions, are convoluted with the power spectrum to create a vector that characterizes the power spectrum while reducing the dimensionality of the characterizing vector. A neural network analyzes the characterizing vector and produces a classification designator indicative of the class of the object associated with the analog sound pressure levels received by the system.

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