Invention Grant
- Patent Title: System and method for improving the resolution and sensitivity of lidar
-
Application No.: US16277931Application Date: 2019-02-15
-
Publication No.: US10996334B2Publication Date: 2021-05-04
- Inventor: Shubhashish Datta , Abhay Joshi
- Applicant: Discovery Semiconductors, Inc.
- Applicant Address: US NJ Ewing
- Assignee: Discovery Semiconductors, Inc.
- Current Assignee: Discovery Semiconductors, Inc.
- Current Assignee Address: US NJ Ewing
- Agency: LaMorte & Associates P.C.
- Main IPC: G01C3/08
- IPC: G01C3/08 ; G01S17/34 ; G01S7/4913 ; G01S7/4911

Abstract:
A lidar system where a laser creates a laser output and the sequence generator creates a pseudorandom noise sequence. The laser output is directed into two paths. On the first path, the laser output is directed to a first modulator. The first modulator encodes the laser output with the pseudorandom noise sequence to produce an encoded output signal. The encoded output signal is amplified and directed toward a target, wherein a back-scattered signal is reflected back from the target. On the second path, the laser output is directed to a second modulator. The second modulator modulates the laser output to produce an oscillator signal. The back-scattered signal is aligned and is mixed with the oscillator signal from the second modulator. The resulting mixed signal is converted into a corresponding RF output signal. The RF output signal is cross-correlated with the pseudorandom noise sequence to acquire target data.
Public/Granted literature
- US20190265359A1 System and Method for Improving the Resolution and Sensitivity of Lidar Public/Granted day:2019-08-29
Information query