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A large doppler frequency shift will be produced under high dynamic environment,and GPS receiver cost longer time to capture satellite signals. That is a great drawback to some high dynamic carrier especially to some high-speed guided weapons. The paper proposed an acquisition algorithm aided by inertia information under high dynamic environment. Here the real-time speed and position of carrier is...
In order to meet the requirements of high precision localization in armed helicopter, a DOPPLER/GPS/FOG SINS/Barometric Altimeter integrated navigation system is designed. And adaptive information filter is used to fuse these sensors data. The multi-sensor integrated navigation system is implemented based on the floating point DSP+FPGA embedded navigation computer and modular software architecture...
The tightly coupled GPS/SINS integrated navigation system is studied in this paper. In order to meet the requirement of precision and stability, a nonlinear error model of SINS based on additive quaternion is established and a kind of SRUKF(Square-Root Unscented Kalman Filter) algorithm is designed. Compared with EKF, The SRUKF not only improves the location precision greatly but also avoids the calculating...
In order to meet the requirements of high precision orbit determination and prediction for the safe and pinpoint lunar soft landing, the paper presents an autonomous navigation based on SINS (strapdown inertial navigation system) /DOPPLER Radar/Radar Altimeter integrated navigation system. According to the error characteristics of each sensor, an effective information fusion algorithm is designed...
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