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Fig. 2 | Animal Biotelemetry

Fig. 2

From: Passive kHz lidar for the quantification of insect activity and dispersal

Fig. 2

Illustration of how the ranging properties scale with the length of the FOV. When the distance to the focal plane of the sensor, rfoc, is equal to the limit between near- and far-field, rlim, the width of the FOV is constant and the ranging accuracy is unaffected by the distance between the telescope and insect. If the focal plane is located in the near-field, the FOV converges and the method becomes less accurate at close range and more accurate at far range, whereas if the focal plane is located in the far-field, the opposite holds true

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