amplitude_ratio

(rtools/amplitude_ratio.m)

Function Synopsis

P = amplitude_ratio(Q, R, rho, L)

Help text

function P = amplitude_ratio(Q, R, rho, L)
Returns the Multilook Amplitude Ratio for correlated channels
 Q     - sample ratio S_1 / S_2
 R     - true ratio S_1 / S_2
 rho   - complex correlation
 L     - number of looks

 Q can be a matrix; R, rho and L must be scalar
 L defaults to 1 if not specified

 Source: Understanding Synthetic Aperture Radar Images, Chris Oliver, Shaun Quegan, 
     1998, Artech House, p346

 Modified to use log-gamma to avoid overflow
 Caution should be taken for the definition of Q

 Part of the Matlab Radar Toolbox v0.11 by Glen Davidson at www.radarworks.com
 Please acknowledge use of this toolbox in any publication or software.
 This header must be retained in any derivative work

Cross-Reference Information

polarisation_demo             rtools/polarisation_demo.m