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Array-based digital sun-sensor design for CubeSat application
Acta Astronautica ( IF 3.5 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.actaastro.2020.08.005
Konstantin Bolshakov , Fuat Kaan Diriker , Ryan Clark , Regina Lee , Hugh Podmore

Abstract A Custom-designed, digital sun sensor based on the orthogonal photodiode array is proposed. A well-known application of geometrical aperture mask on light detectors is utilized in a non-conventional design for CubeSat application. The main characteristic of this design is the inclusion of a chirped pattern of slits, while using a digital readout of the photodiode arrays. This pattern is expected to allow greater angle detection accuracy while digital photodiode readout decreases complexity and power consumption. The array-based design approach features low power requirements and simpler readout interface and signal processing when compared to matrix-based approach. The proposed sun sensor design will be demonstrated on DESCENT CubeSat as a part of the technology demonstration payload. The characterization of the prototype sensor shows that the current 5-slit design achieves 0.3-degree accuracy with ±51.5-degree field-of-view (FOV).

中文翻译:

用于立方体卫星应用的基于阵列的数字太阳传感器设计

摘要 提出了一种基于正交光电二极管阵列的定制设计的数字太阳传感器。几何孔径掩模在光探测器上的众所周知的应用被用于立方体卫星应用的非常规设计。这种设计的主要特点是包含啁啾模式的狭缝,同时使用光电二极管阵列的数字读数。这种模式有望实现更高的角度检测精度,同时数字光电二极管读数可降低复杂性和功耗。与基于矩阵的方法相比,基于阵列的设计方法具有低功耗和更简单的读出接口和信号处理的特点。拟议的太阳传感器设计将作为技术演示有效载荷的一部分在 DESCENT CubeSat 上进行演示。
更新日期:2021-01-01
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