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时滞和滤波联合估计问题是自适应系统建模和时滞估计两方面的交叉．本文针对先时滞后滤波的串联模型，提出基于快速横向滤波器的递推最小二乘算法，并以合成氨生产过程现场数据为例进行模型预测．仿真结果表明，这种结合时滞跟踪的自适应滤波器适于变时滞低阶系统建模．
The joint delay and filtering estimation problem is the intersection of adaptive system modeling and delay estimation. Aiming at the tandem model with first-delay filtering, this paper proposes a recursive least squares algorithm based on fast transverse filter, and takes the on-site data of ammonia production process as an example to predict the model. Simulation results show that this adaptive filter with time-delay tracking is suitable for modeling low-order systems with variable delay.