Methods and apparatus for obtaining positional information

Details Methods and apparatus for obtaining positional information Methods and apparatus for obtaining positional information

2007-06-05

2007-06-05

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Radar mounted on and controls land vehicle

C342S072000, C342S146000, C342S147000

Reexamination Certificate

active

10603608

ABSTRACT:
An apparatus and method obtains positional information about one or more objects in a detection field. An array includes a transmitting element and a plurality of receiving elements. A truncated cross-correlation function may be applied to determine the interval between signals received by a plurality of the receiving elements, thereby to determine an angular position of an object. A warning zone may be defined and it is determined whether an object is within the warning zone. Also disclosed are techniques for stretching received signals, and techniques for obtaining positional information relating to an object using non-Doppler radar.

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