FIR 底通和带通滤波器和IIR 底通和带通滤波器，实现六自由度运动学逆解算法，是一种双隐层反向传播神经网络。- Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Six degrees of freedom to achieve inverse kinematics algorithm, Is a two hidden layer back propagation neural network.