What are X-band and P-band data?
X-band and P-band refer to the frequency of the radar(s) used by an IfSAR system. Each radar frequency interacts differently with the surface it targets. Higher frequencies (e.g., X-band) interact with smaller features, like leaves and small branches, resulting in elevation measurements more closely representing the vegetation canopy. Lower frequencies (e.g., P-band) interact with larger features, allowing penetration of the vegetation canopy, resulting in elevation measurements more closely representing the bare earth. The drawback of the P-band is that the longer wavelength reduces the accuracy of the elevation measurements. Is freeware available for using these data? Currently, no freeware software is specifically designed for IfSAR data; however, a number of freeware viewers will allow you to view image data and perform simple tasks. Some of these viewers allow the user to view 32-bit BIL data and save as a common image format. It is recommended that you contact the software compan
