无味卡尔曼滤波在热平衡试验中的应用研究

在航天器热平衡试验中应用温度外推预报技术可以快速准确的给出航天器的极限热平衡温度，缩短热平衡试验时间，降低航天器的研制成本。介绍了一种新颖的热平衡试验数据外推方法——无味卡尔曼滤波(UKF)，分析了UKF的应用效果，结果表明应用UKF外推能够在较短的时间内更准确的获得航天器的极限热平衡温度。

Application research of the unscented Kalman filter in thermal balance test

In thermal balance test of the spacecraft,the ultimate thermal balance temperature of the spacecraft can be precisely attained using temperature extrapolation technology and the test duration can be shortened obviously.So the expensive expenditure of the spacecraft will be reduced.As a novelty algorithm,the unscented Kalman filter (UKF) is introduced to extrapolate the temperature in thermal balance test.The extrapolated results of UKF are analyzed,which show UKF can obtain the accurate ultimate temperature in shorter duration.