Predictive collision sensing system

Details Predictive collision sensing system Predictive collision sensing system

1998-01-20

2000-07-04

Nguyen, Tan

Data processing: vehicles, navigation, and relative location

Relative location

Collision avoidance

701 96, 342 70, G01S 1393

Patent

active

060851511

ABSTRACT:
A relatively narrow beam of either RF or optical electromagnetic radiation is scanned over a relatively wide azimuthal range. The return signal is processed to detect the range and velocity of each point of reflection. Individual targets are identified by clustering analysis and are tracked in a Cartesian coordinate system using a Kalman filter. The threat to the vehicle for a given target is assessed from estimates of the relative distance, velocity, and size of each target, and one or more vehicular devices are controlled responsive to the assessment of threat so as to enhance the safety of the vehicle occupant. In a preferred embodiment, a quantized linear frequency modulated continuous wave RF signal is transmitted from and received by a multi-beam antenna having an aziumthal range of at least +/-100 degrees and an individual beam width of approximately 10 degrees.

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