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   Solves one form of the laser radar equation. Computes probability of
   detection,  carrier to noise ratio and received power.
   
   Run the build in demo by typing LADAREquation.
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   Form:
   [pD, cNR, pR] = LADAREquation( d )
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   Inputs
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   d             (1,1)    Parameters
                          .lambda (1,1) Wavelength
                          .theta  (1,1) Beam divergence
                          .r      (1,m) Range (m)
                          .b      (1,1) Bandwidth (Hz)
                          .pT     (1,n) Transmit power
                          .xC     (1,1) Target cross section
                          .d      (1,1) Aperture diameter
                          .etaQ   (1,1) Quantum efficiency
                          .etaM   (1,1) Mixer efficiency
                          .etaE   (1,1) Electronics efficiency
                          .etaT   (1,1) Transmitter efficiency
                          .etaR   (1,1) Receiver efficiency
                          .rho    (1,1) Target reflectivity
                          .n      (1,1) Number of pulsewidths
                          .tA     (1,m) Transmission loss
                          .thetaT (1,:) Beam divergence corresponding to tA
                          .pFA    (1,1) Probability of false alarm
                          .k      (1,1) Beam shape factor
                          .x      (1,m) Auxiliary array for x-axis of plot
                          .xLabel (1,m) Corresponding label

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   Outputs
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   pD            (n,m)   Probability of detection
   cNR           (n,m)   Carrier to noise ratio
   pR            (n,m)   Power received

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