Range & Velocity Sensing System

Range & Velocity Sensing System

The present invention relates to a method and apparatus used to calculate at least one velocity component for a target within the region. The invention employs an energy source which is activated using an activation system in a cyclic pattern with a selected source frequency. A receiver is also employed in conjunction with a shielding system where this shielding system is configured to block the sensing of reflected energy from the target in a cyclic pattern with a selected receiver frequency. The invention operates through measuring a frequency change in the source frequency of the energy source signal when received by the receiver and determines a velocity component for a target based on a measured frequency change for a known direction of travel. The invention may also be extended to provide a two or three dimensional velocity vector through the addition of further energy sources.

Priority Date

13/09/2004

Expiry Date

13/09/2024

PCT and National Phases
Country Application or Grant Number Status
United States 7,576,839 Granted
Japan 5073495 Granted
New Zealand 535322 Granted