Performance Enhancement of Low-Cost Land Navigation System for Location-Based Service

摘要: This work demonstrates a dead-reckoning (DR) scheme for low-cost land navigation system and DR/GPS design using the sigma point Kalman filter (SPKF). Through an observability analysis some simulations, it is shown that performances of stand-alone DR can be improved by employing proposed SPKF. By designed filter, does not have any undetectable errors occurring on curve trajectory. And provide stable seamless navigational solution even in case where initial heading estimation error large, such as 160 degrees, or when GPS signal unavailable due to tunnels, buildings, so on. Simulation results indicate satisfactory performance system.