# log-normal The logarithmic value has a normal distribution. A [dual-slope piecewise linear model](dual-slope%20piecewise%20linear%20model.md) piecewise-linear model [^1] # References [^1]: http://www.wirelesscommunication.nl/reference/chaptr03/shadow/shadow.htm#:~:text=Shadowing%20is%20the%20effect%20that,fluctuations%20due%20to%20multipath%20fading.