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Sun Sensor Based on a Luminance Spiking Pixel Array
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DOI：10.1109/JSEN.2017.2749414.png)
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Abstract
En 中文
We present a novel sun sensor concept. It is the very first sun sensor built with an address event representation spiking pixel matrix. Its pixels spike with a frequency proportional to illumination. It offers remarkable advantages over conventional digital sun sensors based on active pixel sensor (APS) pixels. Its output data flow is quite reduced. It is possible to resolve the sun position just receiving one single event operating in time-to-first-spike mode. It operates with a latency in the order of milliseconds. It has higher dynamic range than APS image sensors (higher than 100 dB). A custom algorithm to compute the centroid of the illuminated pixels is presented. Experimental results are provided.
Keywords:
Sun sensors
AER
attitude determination
event-based vision sensors
space probes
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