大多数现有的鲁棒故障诊断系统集成设计方法都采用基于2范数的残差评价函数。
In most of the existing integrated FD system design approaches, the 2 norm of residual signal is widely adopted as the residual evaluation function.
该模型求解时，首先通过引入代理函数将原问题解耦为残差的加权范数最小化和加权范数TV去噪这两个子问题；
Using surrogate function, we split the sum minimization scheme to the minimizing weighted least square function and TV denoising with weighted norm iteratively.
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