Department of Industrial Engineering, University of La Laguna, 38200 San Cristóbal de La Laguna, Spain.
Institute of Astrophysics of Canary Islands, 38205 San Cristóbal de La Laguna, Spain.
Sensors (Basel). 2022 Mar 8;22(6):2078. doi: 10.3390/s22062078.
The Sunrise missions consist of observing the magnetic field of the sun continuously for a few days from the stratosphere. In these missions, a balloon supporting a telescope and associated instrumentation, including a Tunable Magnetograph (TuMag), is lifted into the stratosphere. In the camera of this instrument, the image sensor sends its data to a Field Programmable Gate Array (FPGA) using eight transmission channels. These channels must be previously calibrated for a correct delivery of the image. For this mission, the FPGA has been exchanged for a newer and larger one, so the firmware has been adapted to the new device. In addition, the calibration algorithm has been parallelized as the main innovation of this work, taking advantage of the increase in logic resources of the new FPGA, in order to minimize the calibration time of the channels. The algorithm has been implemented specifically for this instrument without using the Input Serial Deserializer (ISERDES) Intellectual Property (IP), since this IP does not support the deserialization of the data sent by the image sensor to the FPGA.
“日出”任务包括在平流层中连续几天对太阳磁场进行观测。在这些任务中，一个支持望远镜和相关仪器的气球被提升到平流层中，其中包括可调谐磁强计（TuMag）。在该仪器的相机中，图像传感器通过八个传输通道将其数据发送到现场可编程门阵列（FPGA）。为了正确传输图像，这些通道必须预先进行校准。对于本次任务，FPGA 已被更新更大的 FPGA 取代，因此已对固件进行了适配以适应新设备。此外，作为这项工作的主要创新，该校准算法已被并行化，利用新 FPGA 中逻辑资源的增加，以最小化通道的校准时间。该算法是专门针对该仪器实现的，没有使用输入串行解串器（ISERDES）知识产权（IP），因为该 IP 不支持对图像传感器发送到 FPGA 的数据进行反序列化。
