Low-power High-accuracy micro-digital sun sensor by means of a CMOS image sensor

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	Low-power High-accuracy micro-digital sun sensor by means of a CMOS image sensor
	Ning Xie; Albert J P Theuwissen
刊名	Journal of Electronic Imaging
	2013
卷号	22 期号:3
英文摘要	A micro-digital sun sensor (μDSS) is a sun detector which senses a satellite’s instant attitude angle with respect to the sun. The core of this sensor is a system-on-chip imaging chip which is referred to as APS+. The APS+ integrates a CMOS active pixel sensor (APS) array of 368 × 368 pixels, a 12-bit analog-to-digital converter, and digital signal processing circuits. The μDSS is designed particularly for microsatellite applications, thus low power consumption is the major design consideration. The APS+ reduces power consumption mainly with profiling and windowing methods which are facilitated by the specific active-pixel design. A prototype of the APS+ which is designed in a standard 0.18-μm CMOS process is presented. The APS+ consumes 21 mW at 10 fps, which is 10 times less than the state of the art. In order to improve noise performance, a reset noise reduction method, quadruple sampling (QS), is implemented. QS reduces the effect of the reset noise compared to the conventional delta double sampling method, even in a 3-transistor active pixel structure.
学科主题	红外探测材料与器件
公开日期	2014-11-05
内容类型	期刊论文
源URL	[http://202.127.1.142/handle/181331/7562]
专题	上海技术物理研究所_上海技物所
推荐引用方式 GB/T 7714	Ning Xie,Albert J P Theuwissen. Low-power High-accuracy micro-digital sun sensor by means of a CMOS image sensor[J]. Journal of Electronic Imaging,2013,22(3).
APA	Ning Xie,&Albert J P Theuwissen.(2013).Low-power High-accuracy micro-digital sun sensor by means of a CMOS image sensor.Journal of Electronic Imaging,22(3).
MLA	Ning Xie,et al."Low-power High-accuracy micro-digital sun sensor by means of a CMOS image sensor".Journal of Electronic Imaging 22.3(2013).