FPT stands for: (RF pattern match). It is a patented radio frequency signal pattern matching technology with strong system independence and simple structure developed by US Wireless.
RF Signature is also called: RF pattern match or FingerPrint (abbreviated as: FPT). The radio waves emitted by the terminal are reflected and refracted by buildings and other obstacles, resulting in a specific mode multipath signal that is closely related to the surrounding environment.
FPT related information:
Because before the FPT positioning system is put into actual use, a large and complete location fingerprint database must be established to record in detail the characteristics of each distinguishable smallest area in the city, and It must be updated synchronously with urban construction to ensure the validity, reliability and accuracy of fingerprint samples. Therefore, this technology is still in the trial operation stage and has not been applied on a large scale.