Study on a method of rapid transfer alignment

Hongzhong, Luan; Mao, Yuliang

doi:10.1109/mec.2011.6025738

Cited by 3 publications

(2 citation statements)

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“…The scheme uses velocity and attitude measurements to estimate the slave misalignments. The rapid transfer alignment was further studied by scientists and engineers all over the world 3,6,8,12,13 . Robert M. Rogers 10 carried out the testing of transfer alignment algorithms using aircraft position information.…”

Section: Introductionmentioning

confidence: 99%

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Rapid and Accurate INS Transfer Alignment for Air Launched Tactical Missile Using Kalman Filter

Jain,

Shanker

et al. 2023

Def. Sc. J.

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An Inertial Navigation System (INS) independently measures the Position, Velocity, and Attitude (PVA) of thevehicle to navigate it towards the target. Since INS is a dead-reckoning system, it requires accurate initialization toprovide the navigation (PVA) solution. In the case of an air-launched tactical missile, the aircraft navigation system(Master INS) information is used to initialize accurately the missile INS (Slave INS). Rapid transfer alignment isneeded in today’s combat operation to converge slave INS initialization in the shortest possible time using aircraftnavigation information. The transfer alignment consists of first initializing the missile INS and establishing anavigation solution (PVA) using the missile IMU rates and accelerations, then a Kalman filter is used to, estimatethe errors between the Slave INS and Master INS. The proposed method’s simulation results show that a tacticalmissile INS can be aligned to an acceptable accuracy in a very short time based on the aircraft’s attitude information and with natural maneuvers experienced during aircraft take-off.

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Section: Introductionmentioning

confidence: 99%

“…hongzhong 12 talks about the rapid transfer alignment using velocity plus attitude matching. The convergence is achieved assuming there is no lever arm effect.…”

Section: Introductionmentioning

confidence: 99%

Rapid and Accurate INS Transfer Alignment for Air Launched Tactical Missile Using Kalman Filter

Jain,

Shanker

et al. 2023

Def. Sc. J.

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A high-precision and high-order error model for airborne distributed POS transfer alignment

Teng

et al. 2020

Sci Rep

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Distributed position and orientation systems (DPOSs) can provide abundant time-spatial information for interferometric synthetic aperture radar (InSAR) in airborne earth observation systems. However, some key error terms have not been taken into consideration in the traditional low-order error model, which suppresses the performance of the slave POS and further cannot meet the compensation precision of InSAR. To improve the compensation precision, a precise high-order error model with 45 dimensions was derived. Not only does it take into account the influence of scale factor errors and installation errors of the gyro and accelerometer, but it also makes use of random constants and a first-order Markov process model to describe the gyro drift and accelerometer bias. In addition, the flexure angle and its angular rate were added to the state variables of the transfer alignment model. Based on the model, a measurement equation for attitude errors that considers flexure was deduced. Then, a transfer alignment model based on the matching algorithm including position-velocity-attitude was designed. Finally, the proposed model was validated by simulated and real tests, and the experimental results show that its performance is obviously better than that of the traditional model.

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