Structural, Thermal, and Optical Performance (STOP) analysis of the NASA ARCSTONE instruments

Buleri, Christine; Kehoe, Michael; Lukashin, Constantine; Jackson, Trevor; Beckman, Jeff; Curtis, A; Edwards, Britney; Owen, T.; Phenis, Adam; Stebbins, Mike

doi:10.1117/12.2506656

Cited by 8 publications

(4 citation statements)

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“…Further details of the analysis and design changes made to minimize the effect of the thermal environment on the instrument's performance are described in Ref. 13.…”

Section: Arcstone Instrument Structural/thermal Analysismentioning

confidence: 99%

ARCSTONE: calibration of lunar spectral reflectance from space. Prototype instrument concept, analysis, and results

Courrier,

Swanson,

Lukashin

et al. 2023

J. Appl. Rem. Sens.

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.The ARCSTONE project objective is to acquire accurate measurements of the spectral lunar reflectance from space, allowing the Moon to be used as a high-accuracy SI-traceable calibration reference by spaceborne sensors in low-Earth and geostationary orbits. The required spectral range is 350 to 2300 nm with 4-nm sampling. The ARCSTONE approach is to measure solar and lunar spectral irradiances with a single set of optics and determine spectrally resolved lunar reflectances via a direct ratioing method, eliminating long-term optical degradation effects. Lunar-irradiance values, derived from these direct reflectance measurements, are enabled by independently measured SI-traceable spectral solar irradiances, essentially using the Sun as an on-orbit calibration reference. In an initial attempt to demonstrate this approach, a prototype ultraviolet-visible-near infrared (348 to 910 nm) instrument was designed, fully assembled, characterized, and field tested. Our results demonstrate that this prototype ARCSTONE instrument provides a dynamic range larger than 106, which is necessary to directly measure both the solar and lunar signals, and suggest uncertainties better than 0.5% (k = 1) in measuring lunar spectra can be achieved under proper operational scenarios. We present the design, characterization, and proof-of-concept field-test of the ARCSTONE instrument prototype.

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“…Further details of the analysis and design changes made to minimize the effect of the thermal environment on the instrument's performance are described in Ref. 13.…”

Section: Arcstone Instrument Structural/thermal Analysismentioning

confidence: 99%

ARCSTONE: calibration of lunar spectral reflectance from space. Prototype instrument concept, analysis, and results

Courrier,

Swanson,

Lukashin

et al. 2023

J. Appl. Rem. Sens.

Self Cite

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“…To define the recursive identification approach, we need to define the following quantities. By applying the vec(•) operator to (24), we obtain…”

Section: Dual-update Control Algorithm Summarymentioning

confidence: 99%

Dual-Update Data-Driven Control of Deformable Mirrors Using Walsh Basis Functions

Haber,

Bifano

2021

Preprint

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In this paper, we develop a novel data-driven method for Deformable Mirror (DM) control. The developed method updates both the DM model and DM control actions that produce desired mirror surface shapes. The novel method explicitly takes into account actuator constraints and couples a feedback control algorithm with an algorithm for recursive estimation of DM influence function models.In addition to this, we explore the possibility of using Walsh basis functions for DM control. By expressing the desired and observed mirror surface shapes as sums of Walsh pattern matrices, we formulate the control problem in the 2D Walsh basis domain. We thoroughly experimentally verify the developed approach on a 140-actuator MEMS DM, developed by Boston Micromachines. Our resultsshow that the novel method produces the root-mean-square surface error in the 14 − 40 nanometer range. These results can additionally be improved by tuning the control and estimation parameters. The developed approach is also applicable to other DM types, such as for example, segmented DMs. I. INTRODUCTION Deformable Mirrors (DMs) are one of the main components of Adaptive Optics (AO) systems [1], [2]. A typical DM consist of a reflective optical surface that is deformed by a set of actuators. By precisely shaping the surface of a DM, we can compensate for wave-front aberrations in AO systems [3]-[16].In this paper, we consider the problem of developing control algorithms for DMs. There are a large number of approaches for DM control. A complete survey of all the methods goes well beyond the length limits of this manuscript. Consequently, we briefly mention only the most

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“…Traditionally, optical design and mechanical design simulations are conducted separately or sequentially due to a lack of a design and modeling data shared platform. Recently, a combined structural-thermal-optical-performance (STOP) analysis approach was proposed as a systematical design modeling solution for performance improvement in the telescope, camera, and precise optical instrument applications [6][7][8][9]. Model data mapping approximated from one physics model to another model was adopted.…”

Section: Of 17mentioning

confidence: 99%

Multiphysics Modeling, Sensitivity Analysis, and Optical Performance Optimization for Optical Laser Head in Additive Manufacturing

et al. 2021

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Optical laser head is a key component used to shape the laser beam and to deliver higher power laser irradiation onto workpieces for material processing. A focused laser beam size and optical intensity need to be controlled to avoid decreasing beam quality and loss of intensity in laser material processing. This paper reports the multiphysics modeling of an in-house developed laser head for laser-aided additive manufacturing (LAAM) applications. The design of computer experiments (DoCE) combined with the response surface model was used as an efficient design approach to optimize the optical performance of a high power LAAM head. A coupled structural-thermal-optical-performance (STOP) model was developed to evaluate the influence of thermal effects on the optical performance. A number of experiments with different laser powers, laser beam focal plane positions, and environmental settings were designed and simulated using the STOP model for sensitivity analysis. The response models of the optical performance were constructed using DoCE and regression analysis. Based on the response models, optimal design settings were predicted and validated with the simulations. The results show that the proposed design approach is effective in obtaining optimal solutions for optical performance of the laser head in LAAM.

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Structural, Thermal, and Optical Performance (STOP) analysis of the NASA ARCSTONE instruments

Cited by 8 publications

References 0 publications

ARCSTONE: calibration of lunar spectral reflectance from space. Prototype instrument concept, analysis, and results

ARCSTONE: calibration of lunar spectral reflectance from space. Prototype instrument concept, analysis, and results

Dual-Update Data-Driven Control of Deformable Mirrors Using Walsh Basis Functions

Multiphysics Modeling, Sensitivity Analysis, and Optical Performance Optimization for Optical Laser Head in Additive Manufacturing

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