for_c_k_new

代码说明：

  在白噪声环境下激振结构，得到结构物的响应，通过输入和输出的信号数组，得到结构该点在该方向上的频率和阻尼及振型系数 。本人用它处理振动台试验数据。(Under the white noise environment, the structure of the excited vibration is obtained by the input and output of the signal array. I use it to deal with the vibration table test data.)