Improved Multi-Position Calibration Method for Mechanical Inertia Measurement Units

Hegazy, Salem Abd El-Hakem; Kamel, Ahmed M.; Arafa, Ibrahim I.; Elhalwagy, Yehia Z.

doi:10.1109/jac-ecc51597.2020.9355909

Cited by 3 publications

(1 citation statement)

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“…The modified six-position approach is then used to measure the IMU's misalignment (non-orthogonality). Hegazy et al (2020b) proposed a simple and more accurate calibration method that used an eight-position test to calculate all accelerometer error parameters without relying only on the direction of gravity acceleration. The position data is tabulated in Table 1.…”

Section: Accelerometer Calibrationmentioning

confidence: 99%

INS Stochastic Noise Impact on Circular Error Probability of Ballistic Missiles

Hegazy

Kamel

Arafa

et al. 2022

navi

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A circular error probability (CEP) metric in ballistic missile science is an experimental indicator of the accuracy of a missile system. There are a lot of error sources that cause a ballistic missile to deviate from its ideal trajectory, and that causes a deviation from required CEP. This work discusses the problems of dispersion of ballistic missiles due to inertial navigation system (INS) errors. INS deterministic errors are usually calibrated and compensated using some proper techniques. However, INS stochastic errors can be modeled and analyzed. In this study, a chosen missile is thoroughly analyzed using the six degrees-of-freedom missile flight trajectory simulator. A Monte Carlo simulation is used to generate a large number of flight trajectories to inspect the effect of INS stochastic noise on missile CEP. Moreover, a strategy for selecting an adequate sensor according to mission requirements and its corresponding sensor errors is introduced.

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Section: Accelerometer Calibrationmentioning

confidence: 99%