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Appl Opt. 2010 Jan 10;49(2):213-9. doi: 10.1364/AO.49.000213.

Accuracy of active chirp linearization for broadband frequency modulated continuous wave ladar.

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  • 1Montana State University-Spectrum Lab, Bozeman, Montana 59717, USA.


As the bandwidth and linearity of frequency modulated continuous wave chirp ladar increase, the resulting range resolution, precisions, and accuracy are improved correspondingly. An analysis of a very broadband (several THz) and linear (<1 ppm) chirped ladar system based on active chirp linearization is presented. Residual chirp nonlinearity and material dispersion are analyzed as to their effect on the dynamic range, precision, and accuracy of the system. Measurement precision and accuracy approaching the part per billion level is predicted.

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