The invention provides a self-adaptive filtering method and system suitable for aircraft system modeling, and the method comprises the steps: 110, obtaining an expected output vector based on an input signal; 120, inputting the input signal into an initial adaptive filter, and outputting an actual output vector by the initial adaptive filter; step 130, determining an output error of the initial adaptive filter based on a difference value between the expected output vector and the actual output vector; step 140, based on the output error, updating the initial adaptive filter through a stochastic gradient rising method; the step 110 to the step 140 are repeatedly executed, the initial adaptive filter is iteratively updated until a preset condition is met, and the adaptive filter is obtained; the error precision of adaptive filtering is reduced, the performance of coping with an unsteady state environment is improved, a certain tracking performance is achieved when a system suddenly changes, and the complexity of an algorithm is reduced.
本发明提供了一种适用于飞行器系统建模的自适应滤波方法和系统,包括:步骤110,基于输入信号,获取期望输出向量;步骤120,将所述输入信号输入初始自适应滤波器,所述初始自适应滤波器输出实际输出向量;步骤130,基于所述期望输出向量和所述实际输出向量的差值,确定所述初始自适应滤波器的输出误差;步骤140,基于所述输出误差,通过随机梯度上升法,更新所述初始自适应滤波器;重复执行步骤110‑步骤140,迭代更新所述初始自适应滤波器,直到满足预设条件,得到自适应滤波器;以降低自适应滤波的误差精度和提高应对非稳态环境的性能,并使得在系统发生突变时具有一定的跟踪性能,且降低算法的复杂度。
Adaptive filtering method and system suitable for aircraft system modeling
一种适用于飞行器系统建模的自适应滤波方法和系统
2023-06-27
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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