Some Interpretations of Swerling´s Case 3 Target Results, with Possible Extensions

The similarity between the distribution lawfor the Swerling Case 3 target model and acertain member of the log-normal family isdemonstrated. This similarity is then used topredict some important features of the detectionprobability characteristic for that model.The predictions are found to be highly accurateand suggest possible extensions of theunderlying method to the case of truly lognormalsignal-to-noise ratios.