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首页> 外文会议>International Seminar on Aerospace Science and Technology >Radiometric Characterization for Short Wave Infrared (SWIR) Camera of LAPAN-A4 Satellite
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Radiometric Characterization for Short Wave Infrared (SWIR) Camera of LAPAN-A4 Satellite

机译：拉潘-A4卫星短波红外线（SWIR）相机的辐射算法

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摘要

LAPAN-A4 satellite is the next microsatellite under development in satellite technology centre LAPAN. One of payload on LAPAN-A4 satellite is SWIR camera. SWIR camera is provide by Xenics, with specifications array type using InGaAs, spectral band 1.45 - 1.66 μm, pixels 2,048, pixel pitch 12.5 μm, frame rate 10 kHz, 14 bit processing data, interface using based camera link (CL), power input 12 V, and operating temperature -40°C to 80°C. The aim of this research is to determine of radiometric characterization the SWIR camera image in conditions without illumination and illumination, and hope to be reference of pre-flight data. Methodology in this research, consists of measurement, image processing, analysis, and conclusion. In measurement step, there are two step of measurement are dark measurement, and flat field measurement using integrating sphere as uniform light source. The result of this research shows that the characteristic of the SWIR camera are dark image influenced by temperature, exposure time has a nonlinear pattern, the gain used is the device gain has an optimal value at 13, the camera offset has a fluctuating pattern that is low value in multiples of 20,000 and the highest value in multiples of 15,000 but the best setting in SWIR camera is at zero.
机译：拉潘-A4卫星是下一个卫星技术中心开发的微卫星。 Lapan-A4卫星的有效载荷是抢劫摄像头。 SWIR相机由Xenics提供，具有规格阵列类型使用InGaAs，光谱带1.45 - 1.66μm，像素2,048，像素间距12.5μm，帧速率10 kHz，14位处理数据，接口使用基于相机链路（CL），电源输入12 V，工作温度-40°C至80°C。该研究的目的是在没有照明和照明的情况下确定旋转率相机图像的辐射相机图像，希望是飞行前数据的参考。该研究的方法，包括测量，图像处理，分析和结论。在测量步骤中，有两个测量步骤是暗测量，并且使用积分球作为均匀光源的平坦场测量。该研究的结果表明，SWIR相机的特性是受温度影响的暗图像，曝光时间具有非线性图案，所使用的增益是13，相机偏移具有波动的模式。倍数为20,000的倍数，倍数为15,000的倍数，但SWIR相机中最佳设置为零。

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