Manual

Leddar™One Sensing Module 9
Leddar™One Architecture
The following diagram presents the architecture of the module.
Figure 2: Working Diagram
The Leddar™One module includes the photodetector, LEDs, MCU, the
controller for LED pulsing and data acquisition. Data acquisition is performed
at a sampling frequency of 72131 Hz (44MHz/610).
The Leddar™One module processes the acquired data and produces
measurements at a configurable measurement rate. The measurements
provide the distance of detected objects in the conic beam.
Note: The sensor measurement rate varies according to the oversampling
and accumulation settings.
LED pulsing and receiver data acquisition timing is controlled by the FPGA. A
temperature sensor located near the LEDs is used to implement temperature
compensation on the ranging results.
The MCU recovers the waveforms from the FPGA, performs full waveform
analysis, and generates detection and ranging data. The data can be acquired
and displayed in software through the serial port.