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Laser phase noise is shown to degrade the sensitivity in target vibration measurements using a CW laser with an FM discriminator. Its effects on the performance of a radar employing a linear FM waveform is also discussed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e691a07e361ce9c5005a27c27da3cab3
https://doi.org/10.21236/ada266715
https://doi.org/10.21236/ada266715
Autor:
K. I. Schultz, S. Fisher
Publikováno v:
Space Programs and Technologies Conference.
Publikováno v:
Optics Communications. 60:159-165
Laser intracavity absorption has been afflicted by the appearance of highly complex lineshapes, which seriously limit the applicability of this sensitive spectroscopic technique. We demonstrate these lineshapes to emerge from the interplay of linear
Publikováno v:
Laser Radar III.
Recent work in optical autodyne techniques have presented the underlying theory and have investigated both S/N capabilities and measurement sensitivities for different target scenarios. Here we examine time-varying Doppler derived autodyne signatures
Publikováno v:
Journal of the Optical Society of America A. 4:1228
Two fundamentally different nonlinear inversion techniques are implemented here to investigate the reconstruction of a dispersionless refractive profile from experimental reflection data. The first nonlinear technique used is approximate and based on
Autor:
Dwight L. Jaggard, K. I. Schultz
Publikováno v:
Journal of the Optical Society of America A. 4:1773
The distorted-wave Born and geometrical-optics approximations are used to establish a connection between coherent swept-frequency microwave scattering data and the projections of refractive objects. A reconstruction algorithm based on a generalized b