In terms of the rotation vector differential equation, the source of thenoncommutativity errors including coning and sculling errors is analyzed and coning algorithms are given for SINS in high dynamic environment.
One method of making the low dynamic GPS receiver adapt to Vehicle's high dynamic environment and providing the vehicle's accurate position data through the velocity aiding information provided by INS during vehicle flying are discussed, and the results of ground dynamic simulation test carried out with the GPS satellite signal simulator are given.
High speed and accuracy coning compensation algorithm plays an important role in strapdown inertial navigation system(SINS) in high dynamic environment. To reduce the effect of coning error, a deep research on design of coning compensation algorithm and character of coning compensation error is made.
Laser gyro strapdown inertial navigation system (LSINS) has been an important development direction in recent years which is fit for high dynamic circumstance and low cost 、 good reliability、 high capability etc.
In this dissertation, the Fault Detection and Diagnosis(FDD) methods of navigation systems and the error compensation technique of noncommutativity errors, i.e., coning and sculling errors for Strapdown Inetial Navigation System (SINS) under the high frequency movement are researched.
2. This algorithm will bring to some unknown error in high-motion environment, and then let our key point to the attitude update algorithm. Comparing the algorithm precision with in quaternion and normal coning compensate and recursive coning compensate.
The introduction of the new algorithm is a new idea to calculate attitude error compensation of FOG strapdown inertial navigation(SINS) under the condition of high dynamic angular motion.
It is shown that three samples rotation vector method is an effective algorithm that can greatly increase the attitude accuracy with high dynamic motion.
The second flight test evaluated the performance of the proposed navigation system and demonstrated the benefit of GPS attitude information in a high dynamic environment.
It is designed for heterogeneous end-hosts and constructs tree that is vulnerable at high dynamic environment.
One method of making the low dynamic GPS receiver adapt to Vehicle's high dynamic environment and providing the vehicle's accurate position data through the velocity aiding information provided by INS during vehicle flying are discussed, and the results of ground dynamic simulation test carried out with the GPS satellite signal simulator are given.
The problems met in high dynamic circumstances during estimating GPS signal parameters and detecting data transition are analyzed. The signal parameters are estimated through extended Kalman filter (EKF) algorithm. The pseudonoise (PN) code tracking through digital delay\|locked loop (DDLL) and carrier assistant technology are discussed. And a simple data transition detection and parameter correction method is studied emphatically. The tracking performance and tracking error of the algorithm are analyzed through...
The problems met in high dynamic circumstances during estimating GPS signal parameters and detecting data transition are analyzed. The signal parameters are estimated through extended Kalman filter (EKF) algorithm. The pseudonoise (PN) code tracking through digital delay\|locked loop (DDLL) and carrier assistant technology are discussed. And a simple data transition detection and parameter correction method is studied emphatically. The tracking performance and tracking error of the algorithm are analyzed through simulation. The simulation shows that this data transition method conduces to improve the parameters estimation precision, and the algorithm dynamic performance is ameliorated too.
In this paper,a deep research is made on the algorithm of high precision strapdown inertial navigation system (SINS) under highly dynamic situation and a new threeloop algorithm for SINS is proposed. This algorithm includes the attitude coning compensation and the velocity sculling as well as the rotation compensation. The mathematical models of updating the earth fixed coordinate frame,the navigation coordinate frame and the body coordinate frame are given in this paper,and the mathematical models of the above...
In this paper,a deep research is made on the algorithm of high precision strapdown inertial navigation system (SINS) under highly dynamic situation and a new threeloop algorithm for SINS is proposed. This algorithm includes the attitude coning compensation and the velocity sculling as well as the rotation compensation. The mathematical models of updating the earth fixed coordinate frame,the navigation coordinate frame and the body coordinate frame are given in this paper,and the mathematical models of the above three effects are also given.The computer simulation for this algorithm is taken and the result is shown in the end.
高动态环境
high dynamic environment
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