Introduction [Measurements Corner]

The problem of detecting, locating, and tracking dismounts (moving people), using a distributed collection of simple and cheap narrowband (and, hence, low-resolution) radar devices, is an extremely challenging problem. It has been a topic of considerable research for the past several years. In particular, system performance is dependent upon both the positioning of the devices and the detection/tracking algorithms applied to the raw radar data. This month's Measurements Comer paper describes a novel Bayes-optimal nonlinear filtering technique for the latter. It demonstrates that reasonable dismount tracking can be accomplished with 5–10m bistatic range-resolution systems.