3D LADAR uses time-of-flight measurement to create a 3D view.

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Multiple Choice

3D LADAR uses time-of-flight measurement to create a 3D view.

Explanation:
Time-of-flight is the principle behind 3D LADAR. A short laser pulse is emitted, bounces off a surface, and the time until the reflection returns is measured. Because light travels at a fixed speed, distance to the surface is (speed of light × round-trip time) / 2. By sweeping the beam and collecting many such distance measurements from different angles, you build up a 3D view, usually represented as a point cloud or 3D map. This uses laser light, not sound or X-rays, so it’s not sonar or X-ray based. So the statement is true.

Time-of-flight is the principle behind 3D LADAR. A short laser pulse is emitted, bounces off a surface, and the time until the reflection returns is measured. Because light travels at a fixed speed, distance to the surface is (speed of light × round-trip time) / 2. By sweeping the beam and collecting many such distance measurements from different angles, you build up a 3D view, usually represented as a point cloud or 3D map. This uses laser light, not sound or X-rays, so it’s not sonar or X-ray based. So the statement is true.

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