[01796951]基于全变分模型的IRFPA非均匀性神经网络校正方法
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本发明涉及基于全变分模型的IRFPA非均匀性神经网络校正方法,包括以下步骤:(1)、设定IRFPA探测器(i,j)像元增益校正参数的初始值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000011”/>为1,设定IRFPA探测器(i,j)像元偏置校正参数的初始值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000012”/>为0;(2)、构建神经网络输入层;(3)、计算n时刻输入层观测值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000013”/>的校正值输出<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000014”/>构建神经网络输出层;(4)、计算(i,j)像元的期望输出值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000015”/>(5)、确定隐含层能量泛函的保真项<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000016”/>和正则项<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000017”/>构建神经网络的隐含层;(6)、采用最陡下降法,获得第n+1时刻对应的增益校正参数<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000018”/>和偏置校正参数<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000019”/>(7)、从神经网络输出层获取n+1时刻的校正输出<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000110”/>(8)、对IRFPA探测器采集到的后续的场景辐射观测值<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000111”/>依次执行步骤(4)到步骤(7),得到相应的校正值<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000112”/>其中t≥n+2。
本发明涉及基于全变分模型的IRFPA非均匀性神经网络校正方法,包括以下步骤:(1)、设定IRFPA探测器(i,j)像元增益校正参数的初始值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000011”/>为1,设定IRFPA探测器(i,j)像元偏置校正参数的初始值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000012”/>为0;(2)、构建神经网络输入层;(3)、计算n时刻输入层观测值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000013”/>的校正值输出<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000014”/>构建神经网络输出层;(4)、计算(i,j)像元的期望输出值<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000015”/>(5)、确定隐含层能量泛函的保真项<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000016”/>和正则项<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000017”/>构建神经网络的隐含层;(6)、采用最陡下降法,获得第n+1时刻对应的增益校正参数<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000018”/>和偏置校正参数<img src=’’’’ class=“image-anchor” image-id=“DDA0001152956440000019”/>(7)、从神经网络输出层获取n+1时刻的校正输出<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000110”/>(8)、对IRFPA探测器采集到的后续的场景辐射观测值<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000111”/>依次执行步骤(4)到步骤(7),得到相应的校正值<img src=’’’’ class=“image-anchor” image-id=“DDA00011529564400000112”/>其中t≥n+2。