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A Protocol for Real-time 3D Single Particle Tracking

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Digital laser ranging and tracking using a compound axis servomechanism.

T W Barnard¹, C R Fencil

¹The Perkin-Elmer Corporation, Norwalk,Connecticut, USA.

|January 6, 2010

Summary

This study introduces an advanced optical tracking system using laser technology for precise real-time target data. The system offers superior spatial efficiency and control for accurate tracking and ranging applications.

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Area of Science:

Optical Engineering
Laser Technology
Servo Systems

Background:

Optical systems offer spatial efficiency for tracking and ranging.
Plane-polarized, coherent laser beams provide enhanced energy control.

Purpose of the Study:

To develop a precise optical tracking and ranging system using laser light.
To achieve real-time data acquisition at a high sampling rate.

Main Methods:

Utilized a laser-illuminated retroreflector mounted on the target.
Employed a compound-axis servo system with a mirror-mounted tracking pedestal for angular data.
Implemented a digital-mode, frequency-modulated, continuous-wave (cw) laser ranging system for slant range determination.

Main Results:

Achieved precise tracking and slant-range information.
Real-time sampling rate of 200 cycles per second (c/s).
Independent control over the ranging system's resolution and sampling rate.

Conclusions:

The developed laser-based optical system provides accurate, real-time tracking and ranging data.
The system's design offers significant advantages in spatial efficiency and energy control.
The compound-axis servo and FM-CW laser ranging components enable precise angular and distance measurements.