Lidar Luminance Quantizer

TBMG-12242

12/01/2011

Abstract
Content

This innovation addresses challenges in lidar imaging, particularly with the detection scheme and the shapes of the detected signals. Ideally, the echoed pulse widths should be extremely narrow to resolve fine detail at high event rates. However, narrow pulses require wideband detection circuitry with increased power dissipation to minimize thermal noise. Filtering is also required to shape each received signal into a form suitable for processing by a constant fraction discriminator (CFD) followed by a time-to-digital converter (TDC). As the intervals between the echoes decrease, the finite bandwidth of the shaping circuits blends the pulses into an analog signal (luminance) with multiple modes, reducing the ability of the CFD to discriminate individual events.

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Citation
"Lidar Luminance Quantizer," Mobility Engineering, December 1, 2011.
Additional Details
Publisher
Published
Dec 1, 2011
Product Code
TBMG-12242
Content Type
Magazine Article
Language
English