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FocusStrehl
S = FocusStrehl(FocusRange,TargetRange,lambda,D)
Computes Strehl ratio (peak irradiance decrease) for a beam focused at FocusRange but incident at TargetRange. Based on Gaussian beam model for beam spread of defocused beam.
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Parameters |
Description |
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FocusRange [vector] |
Range at which transmitter is focused (m) |
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TargetRange [scalar] |
Range at which beam is incident (m) |
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lambda [scalar] |
Transmit laser wavelength (m) |
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D [scalar] |
Transmit aperture diameter (m) |
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Return Values |
Description |
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S [vector] |
Strehl ratio for beam at target with defocus |
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Copyright (c) 2009. All rights reserved.
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Description