A viewshed analysis can be performed using one of many GIS programs, such as GRASS GIS (r.los, r.viewshed), SAGA GIS (Visibility), TNT Mips, ArcMap, Maptitude, ERDAS IMAGINE.
analysis | functional analysis | Fourier analysis | Mathematical analysis | mathematical analysis | Infrared Processing and Analysis Center | Genetic analysis | harmonic analysis | SWOT analysis | International Institute for Applied Systems Analysis | Formal concept analysis | Cluster analysis | Behavioral Analysis Unit | Schenkerian analysis | Isotope analysis | intelligence analysis | Asymptotic analysis | Trend analysis | The New Class: An Analysis of the Communist System | Synchronic analysis | Regression analysis | performance analysis | Musical analysis | International Institute of Business Analysis | Intelligence analysis | IEEE Transactions on Pattern Analysis and Machine Intelligence | Gravimetric analysis | Fundamental analysis | Functional analysis | frequency analysis |