登录论坛

查看完整版本 : [求助]求助!!请各位大侠帮帮忙


200659190120
2009-01-03, 19:01
还没学MATLAB!但老师要我们处理一组数据!!!在这求各位大侠帮帮忙~~~


要求: 采样速率1000HZ,将所测点的力和位移分别滤波并求力最大值和位移最大值,滤波器可选用矩形窗FIR或者汉明窗或者汉宁窗,滤波范围为低通 ,截止频率为50HZ ,观察哪一种滤波器对原始信号滤波后的最大力/最大位移的比值最稳定,实际上是通带的波动最小,截止频率可以设置(但最低不要低于10HZ),观察截止频率对我们要求的参数的敏感性。



数据

力:
0.947,1.060,1.162,1.274,1.372,1.465,1.567,1.670,1.768,1.855,1.963,2.061,2.158,2.256,2.358,2.451,2.583,2.690,2.817,2.964,3.101,3.257,3.398,3.530,3.730,3.818,3.965,4.229,4.233,4.375,4.512,4.644,4.805,4.902,5.073,5.220,5.371,5.513,5.615,5.815,5.947,6.099,6.221,6.372,6.479,6.602,6.699,6.802,6.895,6.973,7.070,7.227,7.207,7.261,7.314,7.354,7.407,7.466,7.480,7.544,7.559,7.568,7.598,7.607,7.617,7.651,7.627,7.637,7.632,7.637,7.637,7.637,7.617,7.627,7.598,7.563,7.554,7.544,7.515,7.495,7.480,7.427,7.397,7.354,7.329,7.280,7.236,7.197,7.153,7.124,7.070,7.021,6.973,6.924,6.870,6.812,6.758,6.714,6.655,6.563,6.519,6.465,6.348,6.309,6.265,6.230,6.133,6.050,5.986,5.889,5.864,5.786,5.625,5.654,5.566,5.542,5.444,5.332,5.322,5.244,5.176,5.112,5.054,4.985,4.917,4.858,4.800,4.727,4.668,4.624,4.551,4.502,4.434,4.390,4.321,4.243,4.229,4.189,4.126,4.155,3.999,3.965,3.926,3.867,3.843,3.760,3.730,3.647,3.730,3.599,3.511,3.457,3.423,3.379,3.340,3.301,3.257,3.198,3.164,3.115,3.091,3.003,3.008,2.988,2.949,2.896,2.866,2.817,2.827,2.749,2.720,2.681,2.651,2.612,2.578,2.568,2.510,2.480,2.446,2.397,2.407,2.339,2.319,2.290,2.261,2.231,2.207,2.183,2.129,2.124,2.095,2.065,2.041,2.026,1.982,1.968,1.943,1.919,1.885,1.875,1.851,1.802,1.787,1.914,1.743,1.748,1.797,1.680,1.660,1.631,1.606,1.611,1.572,1.543,1.523,1.514,1.484,1.470,1.455,1.436,1.411,1.392,1.382,1.367,1.343,1.338,1.299,1.289,1.270,1.274,1.230,1.226,1.226,1.196,1.172,1.167,1.138,1.128,1.123,1.118,1.069,1.069,1.050,1.099,1.025,1.016,1.001,0.996,1.055,0.947,0.947,0.928,0.923,0.923,0.908,0.908,0.884,0.879,0.864,0.854,0.840,0.830,0.830,0.806,0.796,0.791,0.781,0.776,0.762,0.752,0.752,0.688,0.718,0.781,0.698,0.693,0.649,0.679,0.664,0.649,0.630,0.640,0.635,0.625,0.615,0.601,0.610,0.605,0.591,0.601,0.576,0.566,0.566,0.576,0.562,0.557,0.557,0.571,0.615,0.532,0.522,0.542,0.522,0.503,0.503,0.454,0.493,0.454,0.469,0.464,0.459,0.464,0.425,0.439,0.430,0.425,0.410,0.410,0.410,0.410,0.396,0.400,0.386,0.376,0.386,0.371,0.376,0.361,0.356,0.347,0.347,0.342,0.313,0.347,0.420,0.322,0.313,0.313,0.303,0.327,0.303,0.293,0.293,0.283,0.283,0.278,0.269,0.278,0.259,0.259,0.259,0.269,0.254,0.249,0.244,0.210,0.249,0.229,0.239,0.254,0.234,0.254,0.215,0.366,0.220,0.234,0.210,0.220,0.215,0.234,0.220,0.200,0.200,0.195,0.195,0.205,0.190,0.190,0.186,0.190,0.181,0.171,0.200,0.200,0.186,0.176,0.176,0.176,0.190,0.161,0.156,0.161,0.146,0.181,0.039,0.137,0.156,0.156,0.181,0.161,0.117,0.166,0.156,0.151,0.151,0.156,0.156,0.146,0.122,0.151,0.151,0.156,0.151,0.156,0.161,0.146,0.151,0.146,0.156,0.146,0.151,0.142,0.137,0.146,0.161,0.161,0.132,0.146,0.068,0.132,0.127,0.127,0.132,0.127,0.122,0.122,0.117,0.127,0.117,0.112,0.112,0.107,0.103,0.107,0.093,0.088,0.103,0.093,0.093,0.093,0.098,0.098,0.083,0.098,0.093,0.093,0.044,0.020,0.083,0.083,0.068,0.068,0.068,0.122,0.117,0.073,0.103,0.063,0.068,0.068,0.063,0.088,0.049,0.063,0.063,0.059,0.059,0.049,0.054,0.073,0.054,0.063,0.044,0.059,0.068,0.059,0.054,0.063,0.054,0.059,0.068,0.044,0.059,0.039,0.049,0.078,0.127,0.098,0.054,0.049,0.044,0.049,0.044,0.044,-0.029,0.044,0.044,0.044,0.044,0.039,0.059,0.049,
位移:
-5.85937500000000E-0003,-4.88281250000000E-0003,-5.85937500000000E-0003,-4.88281250000000E-0003,-4.88281250000000E-0003,-6.83593750000000E-0003,-5.85937500000000E-0003,-6.83593750000000E-0003,-7.81250000000000E-0003,-8.78906250000000E-0003,-7.81250000000000E-0003,-9.76562500000000E-0003,-1.36718750000000E-0002,-1.17187500000000E-0002,-5.85937500000000E-0003,-9.76562500000000E-0003,-9.76562500000000E-0003,-1.07421875000000E-0002,-9.76562500000000E-0003,-1.26953125000000E-0002,-1.36718750000000E-0002,-1.26953125000000E-0002,-1.17187500000000E-0002,-1.36718750000000E-0002,-1.46484375000000E-0002,-1.56250000000000E-0002,-1.56250000000000E-0002,-3.90625000000000E-0003,-1.85546875000000E-0002,-1.85546875000000E-0002,-1.95312500000000E-0002,-1.85546875000000E-0002,-1.56250000000000E-0002,-1.95312500000000E-0002,-2.05078125000000E-0002,-2.14843750000000E-0002,-2.24609375000000E-0002,-2.34375000000000E-0002,-2.24609375000000E-0002,-2.14843750000000E-0002,-2.34375000000000E-0002,-2.63671875000000E-0002,-2.44140625000000E-0002,-2.53906250000000E-0002,-2.53906250000000E-0002,-2.53906250000000E-0002,-3.32031250000000E-0002,-3.12500000000000E-0002,-3.02734375000000E-0002,-3.02734375000000E-0002,-3.12500000000000E-0002,-3.12500000000000E-0002,-3.22265625000000E-0002,-3.22265625000000E-0002,-3.22265625000000E-0002,-3.32031250000000E-0002,-4.78515625000000E-0002,-3.51562500000000E-0002,-3.51562500000000E-0002,-3.71093750000000E-0002,-3.61328125000000E-0002,-3.71093750000000E-0002,-3.71093750000000E-0002,-3.80859375000000E-0002,-3.90625000000000E-0002,-3.32031250000000E-0002,-3.90625000000000E-0002,-4.00390625000000E-0002,-4.00390625000000E-0002,-4.10156250000000E-0002,-4.19921875000000E-0002,-4.10156250000000E-0002,-4.19921875000000E-0002,-4.29687500000000E-0002,-4.39453125000000E-0002,-4.10156250000000E-0002,-4.49218750000000E-0002,-3.90625000000000E-0002,-4.29687500000000E-0002,-4.19921875000000E-0002,-4.10156250000000E-0002,-4.19921875000000E-0002,-4.29687500000000E-0002,-4.19921875000000E-0002,-4.19921875000000E-0002,-4.19921875000000E-0002,-4.19921875000000E-0002,-4.19921875000000E-0002,-4.19921875000000E-0002,-4.10156250000000E-0002,-4.10156250000000E-0002,-4.19921875000000E-0002,-4.10156250000000E-0002,-4.29687500000000E-0002,-4.00390625000000E-0002,-4.58984375000000E-0002,-3.80859375000000E-0002,-3.90625000000000E-0002,-3.80859375000000E-0002,-4.00390625000000E-0002,-3.80859375000000E-0002,-3.80859375000000E-0002,-4.00390625000000E-0002,-3.02734375000000E-0002,-3.51562500000000E-0002,-5.17578125000000E-0002,-3.32031250000000E-0002,-3.61328125000000E-0002,-4.19921875000000E-0002,-3.51562500000000E-0002,-3.12500000000000E-0002,-3.41796875000000E-0002,-3.61328125000000E-0002,-3.41796875000000E-0002,-3.32031250000000E-0002,-3.32031250000000E-0002,-3.22265625000000E-0002,-3.22265625000000E-0002,-3.22265625000000E-0002,-3.12500000000000E-0002,-3.12500000000000E-0002,-2.92968750000000E-0002,-2.92968750000000E-0002,-2.92968750000000E-0002,-2.92968750000000E-0002,-2.83203125000000E-0002,-2.63671875000000E-0002,-2.83203125000000E-0002,-2.63671875000000E-0002,-2.63671875000000E-0002,-2.83203125000000E-0002,-2.53906250000000E-0002,-2.53906250000000E-0002,-2.14843750000000E-0002,-2.34375000000000E-0002,-2.05078125000000E-0002,-1.85546875000000E-0002,-2.24609375000000E-0002,-2.92968750000000E-0002,-2.24609375000000E-0002,-2.24609375000000E-0002,-2.34375000000000E-0002,-1.46484375000000E-0002,-3.12500000000000E-0002,-1.17187500000000E-0002,-2.14843750000000E-0002,-1.85546875000000E-0002,-1.75781250000000E-0002,-1.85546875000000E-0002,-1.85546875000000E-0002,-1.75781250000000E-0002,-1.75781250000000E-0002,-1.66015625000000E-0002,-1.75781250000000E-0002,-1.75781250000000E-0002,-1.95312500000000E-0002,-1.75781250000000E-0002,-1.56250000000000E-0002,-1.56250000000000E-0002,-1.56250000000000E-0002,-1.46484375000000E-0002,-1.56250000000000E-0002,-1.46484375000000E-0002,-1.36718750000000E-0002,-1.26953125000000E-0002,-1.56250000000000E-0002,-1.36718750000000E-0002,-1.36718750000000E-0002,-1.26953125000000E-0002,-1.36718750000000E-0002,-1.26953125000000E-0002,-1.26953125000000E-0002,-1.26953125000000E-0002,-1.26953125000000E-0002,-1.17187500000000E-0002,-1.26953125000000E-0002,-1.17187500000000E-0002,-1.36718750000000E-0002,-1.07421875000000E-0002,-1.17187500000000E-0002,-1.17187500000000E-0002,-1.07421875000000E-0002,-1.07421875000000E-0002,-8.78906250000000E-0003,-8.78906250000000E-0003,-9.76562500000000E-0003,-1.07421875000000E-0002,-4.88281250000000E-0003,-7.81250000000000E-0003,-1.17187500000000E-0002,-1.07421875000000E-0002,-1.07421875000000E-0002,-9.76562500000000E-0003,-3.90625000000000E-0003,-1.07421875000000E-0002,-7.81250000000000E-0003,-7.81250000000000E-0003,-1.66015625000000E-0002,-7.81250000000000E-0003,-1.07421875000000E-0002,-6.83593750000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-8.78906250000000E-0003,-8.78906250000000E-0003,-4.88281250000000E-0003,-9.76562500000000E-0003,-1.75781250000000E-0002,-1.85546875000000E-0002,-9.76562500000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-8.78906250000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-5.85937500000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-7.81250000000000E-0003,-1.85546875000000E-0002,-7.81250000000000E-0003,-7.81250000000000E-0003,-6.83593750000000E-0003,-8.78906250000000E-0003,-6.83593750000000E-0003,-4.88281250000000E-0003,-6.83593750000000E-0003, 4.88281250000000E-0003,-7.81250000000000E-0003,-2.92968750000000E-0003,-6.83593750000000E-0003,-9.76562500000000E-0003,-1.07421875000000E-0002,-3.90625000000000E-0003,-3.90625000000000E-0003,-7.81250000000000E-0003,-6.83593750000000E-0003,-6.83593750000000E-0003,-5.85937500000000E-0003,-6.83593750000000E-0003,-8.78906250000000E-0003,-5.85937500000000E-0003,-5.85937500000000E-0003,-5.85937500000000E-0003,-5.85937500000000E-0003,-5.85937500000000E-0003,-4.88281250000000E-0003,-7.81250000000000E-0003,-6.83593750000000E-0003,-7.81250000000000E-0003,-4.88281250000000E-0003,-5.85937500000000E-0003,-7.81250000000000E-0003,-5.85937500000000E-0003,-4.88281250000000E-0003,-5.85937500000000E-0003,-4.88281250000000E-0003,-4.88281250000000E-0003,-4.88281250000000E-0003,-4.88281250000000E-0003,-3.90625000000000E-0003,-3.90625000000000E-0003, 0.00000000000000E+0000,-3.90625000000000E-0003,-3.90625000000000E-0003,-3.90625000000000E-0003,-3.90625000000000E-0003, 1.95312500000000E-0003,-3.90625000000000E-0003,-6.83593750000000E-0003,-3.90625000000000E-0003,-2.92968750000000E-0003,-1.95312500000000E-0003,-2.92968750000000E-0003,-1.95312500000000E-0003,-1.95312500000000E-0003,-1.95312500000000E-0003,-2.92968750000000E-0003,-3.90625000000000E-0003,-4.88281250000000E-0003,-2.92968750000000E-0003,-2.92968750000000E-0003,-1.95312500000000E-0003,-5.85937500000000E-0003,-1.95312500000000E-0003, 9.76562500000000E-0004, 0.00000000000000E+0000,-5.85937500000000E-0003,-9.76562500000000E-0004, 9.76562500000000E-0004,-2.24609375000000E-0002,-6.83593750000000E-0003, 2.92968750000000E-0003, 0.00000000000000E+0000,-9.76562500000000E-0004,-4.88281250000000E-0003, 0.00000000000000E+0000,-6.83593750000000E-0003, 9.76562500000000E-0004, 0.00000000000000E+0000, 9.76562500000000E-0004, 9.76562500000000E-0004,-9.76562500000000E-0004, 9.76562500000000E-0004, 9.76562500000000E-0004,-4.88281250000000E-0003, 9.76562500000000E-0004, 9.76562500000000E-0004, 9.76562500000000E-0004, 2.92968750000000E-0003,-9.76562500000000E-0004, 1.95312500000000E-0003, 9.76562500000000E-0004, 9.76562500000000E-0004, 1.95312500000000E-0003, 1.56250000000000E-0002, 9.76562500000000E-0004, 0.00000000000000E+0000, 0.00000000000000E+0000,-9.76562500000000E-0004, 0.00000000000000E+0000, 9.76562500000000E-0004, 3.90625000000000E-0003,-1.36718750000000E-0002,-1.07421875000000E-0002, 9.76562500000000E-0004, 9.76562500000000E-0004,-1.07421875000000E-0002,-9.76562500000000E-0004, 9.76562500000000E-0004, 9.76562500000000E-0004,-9.76562500000000E-0004, 9.76562500000000E-0004, 0.00000000000000E+0000, 0.00000000000000E+0000,-9.76562500000000E-0004,-9.76562500000000E-0004, 0.00000000000000E+0000, 9.76562500000000E-0004, 0.00000000000000E+0000, 2.92968750000000E-0003, 0.00000000000000E+0000, 9.76562500000000E-0004, 9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-1.95312500000000E-0003,-9.76562500000000E-0004, 9.76562500000000E-0004,-1.95312500000000E-0003,-1.95312500000000E-0003,-9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-1.95312500000000E-0003, 0.00000000000000E+0000,-1.95312500000000E-0003, 3.90625000000000E-0003, 0.00000000000000E+0000,-1.95312500000000E-0003,-3.90625000000000E-0003,-1.95312500000000E-0003,-3.90625000000000E-0003,-2.92968750000000E-0003,-1.95312500000000E-0003,-3.90625000000000E-0003,-9.76562500000000E-0004,-1.95312500000000E-0003,-9.76562500000000E-0004,-2.92968750000000E-0003,-2.92968750000000E-0003,-2.92968750000000E-0003,-8.78906250000000E-0003,-3.90625000000000E-0003,-5.85937500000000E-0003,-5.85937500000000E-0003,-4.88281250000000E-0003,-1.95312500000000E-0003, 1.95312500000000E-0003,-2.92968750000000E-0003,-6.83593750000000E-0003,-8.78906250000000E-0003,-2.92968750000000E-0003, 3.90625000000000E-0003,-1.56250000000000E-0002,-2.92968750000000E-0003, 1.85546875000000E-0002,-1.95312500000000E-0003, 7.81250000000000E-0003,-1.95312500000000E-0003,-1.36718750000000E-0002,-1.95312500000000E-0003,-5.85937500000000E-0003,-1.95312500000000E-0003,-1.95312500000000E-0003,-9.76562500000000E-0004,-1.95312500000000E-0003,-1.95312500000000E-0003,-7.81250000000000E-0003,-1.95312500000000E-0003, 0.00000000000000E+0000, 9.76562500000000E-0004,-9.76562500000000E-0004,-9.76562500000000E-0004,-2.92968750000000E-0003,-9.76562500000000E-0004, 1.95312500000000E-0003,-1.95312500000000E-0003,-1.07421875000000E-0002, 0.00000000000000E+0000, 0.00000000000000E+0000,-4.88281250000000E-0003,-2.92968750000000E-0003, 4.88281250000000E-0003, 0.00000000000000E+0000,-1.95312500000000E-0003, 1.95312500000000E-0003,-3.90625000000000E-0003, 5.85937500000000E-0003, 0.00000000000000E+0000, 1.95312500000000E-0003, 9.76562500000000E-0004, 2.92968750000000E-0003, 1.95312500000000E-0003, 1.95312500000000E-0003, 1.95312500000000E-0003, 1.95312500000000E-0003, 2.92968750000000E-0003, 1.95312500000000E-0003, 2.92968750000000E-0003, 2.92968750000000E-0003, 1.95312500000000E-0003, 4.88281250000000E-0003, 9.76562500000000E-0004, 2.92968750000000E-0003, 2.92968750000000E-0003, 4.88281250000000E-0003, 7.81250000000000E-0003,-9.76562500000000E-0003, 7.81250000000000E-0003, 3.90625000000000E-0003, 3.90625000000000E-0003, 4.88281250000000E-0003, 6.83593750000000E-0003, 9.76562500000000E-0003, 4.88281250000000E-0003, 3.90625000000000E-0003, 4.88281250000000E-0003, 8.78906250000000E-0003, 5.85937500000000E-0003, 3.90625000000000E-0003, 5.85937500000000E-0003,-2.92968750000000E-0003, 6.83593750000000E-0003, 5.85937500000000E-0003, 6.83593750000000E-0003, 5.85937500000000E-0003,-3.90625000000000E-0003, 6.83593750000000E-0003, 6.83593750000000E-0003, 6.83593750000000E-0003, 6.83593750000000E-0003, 0.00000000000000E+0000, 7.81250000000000E-0003, 6.83593750000000E-0003, 5.85937500000000E-0003, 5.85937500000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 6.83593750000000E-0003, 8.78906250000000E-0003, 4.88281250000000E-0003, 2.92968750000000E-0003, 7.81250000000000E-0003, 5.85937500000000E-0003, 5.85937500000000E-0003, 1.26953125000000E-0002, 1.07421875000000E-0002, 7.81250000000000E-0003, 8.78906250000000E-0003, 6.83593750000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 8.78906250000000E-0003, 7.81250000000000E-0003, 3.90625000000000E-0003, 8.78906250000000E-0003, 8.78906250000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 8.78906250000000E-0003, 5.85937500000000E-0003, 6.83593750000000E-0003, 7.81250000000000E-0003, 6.83593750000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 7.81250000000000E-0003, 8.78906250000000E-0003, 7.81250000000000E-0003, 5.85937500000000E-0003,