Estimating reliability parameters for inverse Gaussian distributions under complete and progressively type-II censored samples

Bera, Samadrita; Jana, Nabakumar

doi:10.1080/16843703.2022.2109871

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…The essence of star sub-pixel gray reconstruction is to reconstruct the gray distribution of the adjacent pixels of the star to correct the position of the energy center of the star. Due to the two-dimensional Gaussian distribution of simulated star energy, its grayscale can be represented as [14,15]…”

Section: Subpixel Star Display Principlementioning

confidence: 99%

Research on subpixel partition correction method for simulating star position in star simulation system

Wu,

Wang,

Jia

et al. 2023

J. Inst.

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The accuracy of star position simulation in star simulation systems is a key factor affecting the accuracy of ground calibration experiments for star sensors. In order to solve the problem that the current simulation star position accuracy is restricted by the size of its constituent elements, In this paper, the mathematical model for simulating the star position correction and the gray distribution of the constituent elements is derived, and the functional representation of the azimuth and longitude correction, elevation and latitude correction of the simulated star position is established. Exploring the distribution law of star position simulation error and establishing a corrected sub interval based on it, achieving sub pixel level star position simulation accuracy. The experimental results show that after using the method proposed in this article, the accuracy of star position simulation has been improved by 1.74 times.

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Section: Subpixel Star Display Principlementioning

confidence: 99%

Research on subpixel partition correction method for simulating star position in star simulation system

Wu,

Wang,

Jia

et al. 2023

J. Inst.

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show abstract

“…The position of each star point in the simulated star map is determined by its gray energy center. The gray energy distribution of the star point can be expressed as follows [13][14][15]: where A represents the gray energy coefficient, σ represents the gaussian radius, and (xi,yi) represents the energy center coordinates of the star point. Under real conditions, there is polarization effect in the system.…”

Section: Exit Pupil Collimation Optical Systemmentioning

confidence: 99%

Study on Optimization Method of Polarization Balance for Weak Starlight System

Wu,

Sun,

et al. 2023

Preprint

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The accuracy of star position simulation is the key factor affecting the accuracy of ground calibration test of spacecraft attitude measurement system. To solve the impact of nonimaging polarized stray light on the simulation accuracy of star position in the optical engine of the system, the generation mechanism of non-imaging polarized stray light has been investigated, and an optimization method for polarization balance of the optical engine is proposed. The mathematical model of the incident light aperture angle and the ideal polarization parameter of the optical engine thin film is established, and the optimization evaluation function of polarization balance of the optical engine is constructed. An optical engine polarization balance film with the corresponding full-band binomial attenuation is <0.001 and the phase delay is <1°. Experimental results show that the simulation accuracy of the weak starlight simulation system is improved by 1.64 times using polarization balanced optical engine.

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Quantum model regression for generating fuzzy numbers in adiabatic quantum computing

Anjaria

2024

Information Sciences

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Estimating reliability parameters for inverse Gaussian distributions under complete and progressively type-II censored samples

Cited by 9 publications

References 35 publications

Research on subpixel partition correction method for simulating star position in star simulation system

Research on subpixel partition correction method for simulating star position in star simulation system

Study on Optimization Method of Polarization Balance for Weak Starlight System

Quantum model regression for generating fuzzy numbers in adiabatic quantum computing

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