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一连续平稳的随机信号x(t),自相关函数为r(t),信号x(t)为加性噪声所干扰,噪声是白噪声,测量值的离散值在z(k)为已知,T=0.02s,-3.2,-0.8,-14,-16,-17,-18,-3.3,-2.4,-18,-0.3,-0.4,-0.8,-19,-2.0,-1.2,-11,-14,-0.9,0.8,,10,0.2,0.5,2.4,-0.5,0.5,-13,0.5,10,-12,0.5,-0.6,-15,-0.7,15,-0.7,-2.0,-19,-17,-11,-14自编卡尔曼滤波递推推导,估计信号x(t)的波形。