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Dual sinusoidal modulation scheme for directional laser Doppler velocimeter

Dual sinusoidal modulation scheme for directional laser Doppler velocimeter

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© The Institution of Electrical Engineers
Published

A dual sinusoidal modulation scheme introducing directional sensing of a laser Doppler velocimeter (LDV) employing a semiconductor laser source is described. With this technique using direct current modulation a single-sideband Doppler shift of 8.5 MHz with an image sideband suppression of 29dB is demonstrated.

Inspec keywords: laser velocimeters; Doppler effect

Other keywords: laser Doppler velocimeter; image sideband suppression; 8.5 MHz; dual sinusoidal modulation scheme; directional sensing; Doppler shift; semiconductor laser source

Subjects: Laser beam applications; Velocity, acceleration and rotation measurement; Velocity, acceleration and rotation measurement; Laser applications

References

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