用于高分辨率地球观测的多光谱CCD in-CMOS时间延迟积分成像仪
Multispectral CCD-in-CMOS Time Delay Integration imager for high resolution Earth observation
摘要：
今后许多小型卫星飞行任务的目标是以前所未有的重访率提供低成本遥感数据，地面分辨率低于一米。这就需要高分辨率、快速和灵敏的线扫描成像仪，以低功耗运行，并具有理想的光谱灵敏度。在本文中，我们提出了全面的表征结果，我们的7波段背面照明（BSI）CCD在CMOS传感器的像素间距为5.4微米。我们有广泛的特点，我们的CCD在CMOS传感器的关键性能参数，如量子效率（QE），全阱容量（FWC），读取噪声，转换增益，非线性，暗电流等。该设备的新颖性是7 TDI波段的组合在同一个成像仪允许同时多光谱TDI捕获。已经开发出典型带通宽度约为100 nm的玻璃基宽带滤光器，并将其胶合在一起以形成6个带通滤光器和一个全色通道的滤光器组件。该传感器的多光谱能力对于环境监测、精准农业、灾害探测和监测等低地观测应用特别有意义。为了突出其在植被观测中的优势，我们展示了一个假叶和一个真正的叶成像使用7波段BSI传感器与集成滤波器工作在7波段模式在15 kHz。
英文摘要：
Many future small satellite missions are aimed to provide low-cost remote sensing data at unprecedented revisit rates, with a ground resolution of less than one meter. This requires high resolution, fast and sensitive line-scan imagers operating at low power consumption and ideally featuring spectral sensitivity. In this paper we present comprehensive characterization results of our 7 band Back-Side Illuminated (BSI) CCD-in-CMOS sensor with a pixel pitch of 5.4 um. We have extensively characterized the key performance parameters of our CCD-in-CMOS sensor, such as quantum efficiency (QE), full well capacity (FWC), read noise, conversion gain, non-linearity, dark current etc. Novelty of this device is the combination of 7 TDI bands on the same imager allowing simultaneous multispectral TDI capture. Glass-based broadband filters with a typical band-pass width of about 100 nm have been developed and glued together to form a filter assembly of 6 band-pass filters and one panchromatic channel. Multispectral capability of this sensor is particularly interesting for Low Earth Observation (LEO) applications such as environmental monitoring, precision agriculture, disaster detection and monitoring. To highlight its ad-vantages for use in vegetation observation, we demonstrated a fake leaf and a real leaf imaging using a 7 band BSI sensor with integrated filters operating in 7-band mode at 15 kHz.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
