Patent Number: 7,821,870

Title: Method and system for identifying moving objects using acoustic signals

Abstract: An acoustic tone at a predetermined frequency is detected after being reflected and modulated by an unknown moving object. Acoustic features are extracted from the reflected acoustic tone using acoustic spectral analysis. A dimensionality of the acoustic features is reduced, and the reduced dimensionality features are statistically classified to identify the object.

Inventors: Ramakrishnan; Bhiksha (Watertown, MA)

Assignee: Mitsubishi Electric Research Laboratories Inc.

International Classification: G01S 15/04 (20060101); G01S 13/04 (20060101); G01S 15/00 (20060101); G01S 13/00 (20060101)

Expiration Date: 2018-10-26 0:00:00