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sparkfunX / A111_Pulsed_Radar_Breakout

Breakout (w/ RasPi pinout) for the A111 pulsed radar sensor.
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Coordinates system of A111 #4

Open uscgongjianxin opened 6 years ago

uscgongjianxin commented 6 years ago

Now I obtained outputs like this Distance detector: Reflections: 5. Seq. nr: 424. (200-700 mm): 648 mm (137), 658 mm (250), 665 mm (255), 676 mm (209), 686 mm (65).

But since I don't know the coordinates system of A111, I don't know the meaning of the amplitude of the reflection. What is x-axis? What is y-axis? Where is the origin? The amplitude should be an angle between an axis and the line connecting the origin and the object.

pthorell commented 6 years ago

The A111 sensor measures the reflected energy at different radial distances from the sensor. Good reflectors reflect more energy to the sensor which results in a high amplitude in the received signal.

For more information see chapter 5 in the “Envelope service user guide” https://download.acconeer.com/doc/Envelope%20Service%20User%20Guide .