Invention Grant
- Patent Title: Techniques for identifying obstructions of a LIDAR window
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Application No.: US17201145Application Date: 2021-03-15
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Publication No.: US11360219B2Publication Date: 2022-06-14
- Inventor: Jose Krause Perin , Kumar Bhargav Viswanatha , Rajendra Tushar Moorti , Mina Rezk
- Applicant: AEVA, INC.
- Applicant Address: US CA Mountain View
- Assignee: AEVA, INC.
- Current Assignee: AEVA, INC.
- Current Assignee Address: US CA Mountain View
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: G01S17/931
- IPC: G01S17/931 ; G01S7/481 ; G01S17/34 ; G01S7/497 ; G01S17/89

Abstract:
A return signal associated with a frequency modulated continuous wave (FMCW) optical beam is received. A correction for Doppler scanning artifacts in the return signal is made. A determination as to whether the return signal is caused by an obstruction on or proximate to a LIDAR window is made. A field of view (FOV) reflectivity map is generated based on the determination. The FOV reflectivity map is analyzed by identifying an obstructed FOV of the LIDAR system and determining a reflected energy from the obstructed FOV.
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