【摘要】 针对道路模拟或地震模拟等试验时需要再现实际路况的问题,采用了自适应有限脉冲响应滤波器的多通道逆向控制方法,使多通道振动台模拟试验系统的系统响应逼近于期望响应信号,并且提出了一种新的可变步长自适应滤波算法。在进行了计算机仿真的基础上,利用TMS320F2812 DSP板进行了试验,给出了利用此算法进行的模拟结果曲线。试验结果表明:采用这种方法控制振动台模拟试验系统,精确地再现了期望响应信号,满足了试验系统的要求。更多还原

【Abstract】 A multi-channel inverse control method of adaptive finite impulse response filters is proposed in this paper.The method can make the response of multi-channel shaking table simulation testing system approach the expected signal.And the paper presents a new algorithm of adaptive filtering with variable step size.The computer simulation of this algorithm and the experiment on the TMS320F2812 DSP are carried out,the shaking table simulation test is accomplished by using this method.The result shows that the shaking table simulation testing system controlled by this method can reappear the desired response signal precisely and meet the requirement of testing system.更多还原