Lidar countermeasure using amplitude and phase front modulation

Details Lidar countermeasure using amplitude and phase front modulation Lidar countermeasure using amplitude and phase front modulation

1992-01-31

1992-11-24

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356121, G01J 120

Patent

active

051665077

ABSTRACT:
A lider countermeasure receives an interrogating laser beam and returns a beam having a distorted phase point such that the interrogating system generates a false angular portion for the returned radiation. The false phase front is achieved by independent manipulations of the amplitude and phase of the returned signal.

REFERENCES:
patent: 4005935 (1977-02-01), Wang
patent: 4006478 (1977-02-01), Lewis et al.
patent: 4761059 (1988-08-01), Yeh et al.
patent: 4921335 (1990-05-01), Ditman, Jr.

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