Generation of LIDAR data from optical signals
AssigneeSiLC Technologies, Inc.
InventorsMajid Boloorian, Dazeng Feng
Life of this patent
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Abstract
A LIDAR system includes optics that generate a light signal that carries LIDAR data that indicates a distance and/or radial velocity between the optics and an object located outside of the LIDAR system. Electronics are configured to convert the light signal to a first data electrical signal and a second data electrical signal. The electronics perform a Complex Fourier transform on a complex signal such that the first data electrical signals acts a real component of the complex signal and the second data electrical signals acts as an imaginary component of the complex signal. The electronics determine the LIDAR data from an output of the Complex Fourier transform.
Claims16
A LIDAR system, comprising:
- a utility waveguide that carries an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the LIDAR system;
- an optical component combines a first portion of a reference signal with a first portion of a comparative signal so as to form a first composite signal,
- the reference signal includes a portion of the light from the outgoing LIDAR signal before the outgoing LIDAR signal exits from the LIDAR system, and
- the comparative signal includes light from the outgoing LIDAR that was reflected off an object located remote from the LIDAR system;
- and
- a second optical component combines a second portion of the reference signal with a second portion of the comparative signal so as to form a second composite signal,
- the first portion of the reference signal in the first composite signal being out of phase with the second portion of the reference signal in the second composite signal.
A LIDAR system, comprising:
- a utility waveguide that carries an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the LIDAR system;
- an optical component combines a first portion of a reference signal with a first portion of a comparative signal so as to form a first composite signal,
- the reference signal includes a portion of the light from the outgoing LIDAR signal before the outgoing LIDAR signal exits from the LIDAR system, and
- the comparative signal includes light from the outgoing LIDAR that was reflected off an object located remote from the LIDAR system;
- and
- a second optical component combines a second portion of the reference signal with a second portion of the comparative signal so as to form a second composite signal,
- the first portion of the comparative signal in the first composite signal being out of phase with the second portion of the comparative signal in the second composite signal.
A LIDAR system comprising:
- optics that generate a light signal that carries LIDAR data,
- the LIDAR data indicating a distance and/or radial velocity between the optics and an object located outside of the LIDAR system;
- electronics configured to convert the light signal to a first data electrical signal and a second data electrical signal,
- the electronics performing a Complex Fourier transform on a complex signal, the first data electrical signals being a real component of the complex signal and the second data electrical signals being an imaginary component of the complex signal.
A method of operating a LIDAR system, comprising:
- generating multiple data electrical signals from a light signal that carries LIDAR data, the LIDAR data indicating a distance and/or radial velocity between a source of a LIDAR output signal and an object that reflects the LIDAR output signal;
- performing a Complex Fourier transform on a complex signal such that a first one of the data electrical signals is a real component of the complex signal and a second one of the data electrical signals is an imaginary component of the complex signal;
- and
- using an output from the Complex Fourier transform to determine the distance and/or radial velocity between the source and the object.
Dependencies are inferred from the claim text.