초록 ▼

A wide angle, static, positional anticipatory object detection system includes a transducer device for transmitting a modulated carrier signal and receiving the modulated carrier signal reflected from an object, a detection device for detecting a plurality of Doppler shifted harmonic components from

A wide angle, static, positional anticipatory object detection system includes a transducer device for transmitting a modulated carrier signal and receiving the modulated carrier signal reflected from an object, a detection device for detecting a plurality of Doppler shifted harmonic components from the reflected modulated carrier signal, a range determining device responsive to the amplitudes of at least two of the harmonic components being equal for determining the instantaneous range of the object and, a predetermined distance thereafter, to a predetermined difference between the amplitudes of at least two of the harmonic components. The system also includes a Doppler period measurement device responsive to at least one of the harmonic components for measuring the Doppler periods of that harmonic component and a collision decision device, responsive to the range determining device and the Doppler period measurement device, for indicating that a collision with the object is imminent and the offset of the collision from the detection device before contact is made.

대표청구항 ▼

[ What is claimed is:] [1.]1. A wide angle, static, positional anticipatory object detection system comprising:a transducer device for transmitting a modulated carrier signal and receiving the modulated carrier signal reflected from an object;a detection device for detecting a plurality of Doppler s

[ What is claimed is:] [1.]1. A wide angle, static, positional anticipatory object detection system comprising:a transducer device for transmitting a modulated carrier signal and receiving the modulated carrier signal reflected from an object;a detection device for detecting a plurality of Doppler shifted harmonic components from said reflected modulated carrier signal;a range determining device responsive to the amplitudes of at least two of said harmonic components being equal for determining the instantaneous range of said object and, a predetermined distance thereafter, to a predetermined difference between the amplitudes of at least two of said harmonic components;a Doppler period measurement device responsive to at least one of said harmonic components for measuring the Doppler periods of that harmonic component; anda collision decision device, responsive to said range determining device and said Doppler period measurement device, for indicating that a collision with said object is imminent and the offset of the collision from the detection device before contact is made.