Localizing tagged assets using modulated backscatter

摘要: Methods and systems for localizing an asset using the modulated backscatter from tag one or more marker tags are described. The system includes reader, a location module tags. estimates based partially on prior knowledge of each may be stored in database. determines estimate estimated parameters signals received tag. Using known locations tags, can determined. relative location, absolute and/or zone including A mobile reader localize throughout large area may, example, take inventory assets area.