data.txt

这是一个包络线的matlab源程序

  0.0000000e+000  0.0000000e+000
  2.0000000e-002  2.9492484e-003
  4.0000000e-002  1.1247018e-002
  6.0000000e-002  2.3355727e-002
  8.0000000e-002  3.6974639e-002
  1.0000000e-001  4.9357915e-002
  1.2000000e-001  5.7699244e-002
  1.4000000e-001  5.9535956e-002
  1.6000000e-001  5.3122635e-002
  1.8000000e-001  3.7727048e-002
  2.0000000e-001  1.3809522e-002
  2.2000000e-001 -1.6940239e-002
  2.4000000e-001 -5.1718832e-002
  2.6000000e-001 -8.6869745e-002
  2.8000000e-001 -1.1826420e-001
  3.0000000e-001 -1.4176295e-001
  3.2000000e-001 -1.5370893e-001
  3.4000000e-001 -1.5139555e-001
  3.6000000e-001 -1.3345576e-001
  3.8000000e-001 -1.0012394e-001
  4.0000000e-001 -5.3334661e-002
  4.2000000e-001  3.3608616e-003
  4.4000000e-001  6.5060959e-002
  4.6000000e-001  1.2594259e-001
  4.8000000e-001  1.7981530e-001
  5.0000000e-001  2.2074697e-001
  5.2000000e-001  2.4369849e-001
  5.4000000e-001  2.4510078e-001
  5.6000000e-001  2.2331104e-001
  5.8000000e-001  1.7889482e-001
  6.0000000e-001  1.1469688e-001
  6.2000000e-001  3.5683497e-002
  6.4000000e-001 -5.1437733e-002
  6.6000000e-001 -1.3879199e-001
  6.8000000e-001 -2.1805562e-001
  7.0000000e-001 -2.8125263e-001
  7.2000000e-001 -3.2155291e-001
  7.4000000e-001 -3.3399265e-001
  7.6000000e-001 -3.1604226e-001
  7.8000000e-001 -2.6795973e-001
  8.0000000e-001 -1.9288639e-001
  8.2000000e-001 -9.6665978e-002
  8.4000000e-001  1.2605539e-002
  8.6000000e-001  1.2526495e-001
  8.8000000e-001  2.3094342e-001
  9.0000000e-001  3.1952727e-001
  9.2000000e-001  3.8212819e-001
  9.4000000e-001  4.1196987e-001
  9.6000000e-001  4.0510287e-001
  9.8000000e-001  3.6087378e-001
  1.0000000e+000  2.8209627e-001
  1.0200000e+000  1.7489851e-001
  1.0400000e+000  4.8252188e-002
  1.0600000e+000 -8.6781326e-002
  1.0800000e+000 -2.1802400e-001
  1.1000000e+000 -3.3328712e-001
  1.1200000e+000 -4.2150911e-001
  1.1400000e+000 -4.7381843e-001
  1.1600000e+000 -4.8441950e-001
  1.1800000e+000 -4.5121347e-001
  1.2000000e+000 -3.7608912e-001
  1.2200000e+000 -2.6484843e-001
  1.2400000e+000 -1.2676534e-001
  1.2600000e+000  2.6189482e-002
  1.2800000e+000  1.8039292e-001
  1.3000000e+000  3.2179080e-001
  1.3200000e+000  4.3718644e-001
  1.3400000e+000  5.1547730e-001
  1.3600000e+000  5.4872369e-001
  1.3800000e+000  5.3294641e-001
  1.4000000e+000  4.6857397e-001
  1.4200000e+000  3.6049106e-001
  1.4400000e+000  2.1767615e-001
  1.4600000e+000  5.2454446e-002
  1.4800000e+000 -1.2057170e-001
  1.5000000e+000 -2.8582135e-001
  1.5200000e+000 -4.2814643e-001
  1.5400000e+000 -5.3422747e-001
  1.5600000e+000 -5.9382430e-001
  1.5800000e+000 -6.0076412e-001
  1.6000000e+000 -5.5357148e-001
  1.6200000e+000 -4.5567672e-001
  1.6400000e+000 -3.1517736e-001
  1.6600000e+000 -1.4416786e-001
  1.6800000e+000  4.2306602e-002
  1.7000000e+000  2.2758154e-001
  1.7200000e+000  3.9487099e-001
  1.7400000e+000  5.2879652e-001
  1.7600000e+000  6.1680740e-001
  1.7800000e+000  6.5036024e-001
  1.8000000e+000  6.2574686e-001
  1.8200000e+000  5.4449045e-001
  1.8400000e+000  4.1326865e-001
  1.8600000e+000  2.4336517e-001
  1.8800000e+000  4.9695059e-002
  1.9000000e+000 -1.5051178e-001
  1.9200000e+000 -3.3925193e-001
  1.9400000e+000 -4.9937611e-001
  1.9600000e+000 -6.1615508e-001
  1.9800000e+000 -6.7864022e-001
  2.0000000e+000 -6.8069270e-001
  2.0200000e+000 -6.2158413e-001
  2.0400000e+000 -5.0611024e-001
  2.0600000e+000 -3.4420316e-001
  2.0800000e+000 -1.5007336e-001
  2.1000000e+000  5.9044086e-002
  2.1200000e+000  2.6442777e-001
  2.1400000e+000  4.4755473e-001
  2.1600000e+000  5.9177933e-001
  2.1800000e+000  6.8385329e-001
  2.2000000e+000  7.1514762e-001
  2.2200000e+000  6.8246311e-001
  2.2400000e+000  5.8835330e-001
  2.2600000e+000  4.4092764e-001
  2.2800000e+000  2.5314963e-001
  2.3000000e+000  4.1691162e-002
  2.3200000e+000 -1.7455524e-001
  2.3400000e+000 -3.7617285e-001
  2.3600000e+000 -5.4497267e-001
  2.3800000e+000 -6.6564215e-001
  2.4000000e+000 -7.2714043e-001
  2.4200000e+000 -7.2371262e-001
  2.4400000e+000 -6.5542940e-001
  2.4600000e+000 -5.2820146e-001
  2.4800000e+000 -3.5326555e-001
  2.5000000e+000 -1.4618715e-001
  2.5200000e+000  7.4531378e-002
  2.5400000e+000  2.8911194e-001
  2.5600000e+000  4.7828140e-001
  2.5800000e+000  6.2501068e-001
  2.6000000e+000  7.1605474e-001
  2.6200000e+000  7.4315337e-001
  2.6400000e+000  7.0378376e-001
  2.6600000e+000  6.0139570e-001
  2.6800000e+000  4.4510785e-001
  2.7000000e+000  2.4889157e-001
  2.7200000e+000  3.0316083e-002
  2.7400000e+000 -1.9103199e-001
  2.7600000e+000 -3.9531183e-001
  2.7800000e+000 -5.6421492e-001
  2.8000000e+000 -6.8261323e-001
  2.8200000e+000 -7.3992018e-001
  2.8400000e+000 -7.3104131e-001
  2.8600000e+000 -6.5682901e-001
  2.8800000e+000 -5.2400053e-001
  2.9000000e+000 -3.4452725e-001
  2.9200000e+000 -1.3455092e-001
  2.9400000e+000  8.7074545e-002
  2.9600000e+000  3.0048335e-001
  2.9800000e+000  4.8658631e-001
  3.0000000e+000  6.2878576e-001
  3.0200000e+000  7.1446213e-001
  3.0400000e+000  7.3609860e-001
  3.0600000e+000  6.9194309e-001
  3.0800000e+000  5.8614917e-001
  3.1000000e+000  4.2838455e-001
  3.1200000e+000  2.3294431e-001
  3.1400000e+000  1.7450291e-002
  3.1600000e+000 -1.9874431e-001
  3.1800000e+000 -3.9630027e-001
  3.2000000e+000 -5.5762951e-001
  3.2200000e+000 -6.6846741e-001
  3.2400000e+000 -7.1913913e-001
  3.2600000e+000 -7.0540708e-001
  3.2800000e+000 -6.2882513e-001
  3.3000000e+000 -4.9656981e-001
  3.3200000e+000 -3.2076658e-001
  3.3400000e+000 -1.1737432e-001
  3.3600000e+000  9.5268799e-002
  3.3800000e+000  2.9810526e-001
  3.4000000e+000  4.7307294e-001
  3.4200000e+000  6.0471994e-001
  3.4400000e+000  6.8157437e-001
  3.4600000e+000  6.9714743e-001
  3.4800000e+000  6.5048151e-001
  3.5000000e+000  5.4619731e-001
  3.5200000e+000  3.9403888e-001
  3.5400000e+000  2.0796154e-001
  3.5600000e+000  4.8478252e-003
  3.5800000e+000 -1.9702965e-001
  3.6000000e+000 -3.7965829e-001
  3.6200000e+000 -5.2689877e-001
  3.6400000e+000 -6.2591662e-001
  3.6600000e+000 -6.6830450e-001
  3.6800000e+000 -6.5079684e-001
  3.7000000e+000 -5.7551604e-001
  3.7200000e+000 -4.4973216e-001
  3.7400000e+000 -2.8516230e-001
  3.7600000e+000 -9.6877032e-002
  3.7800000e+000  9.8083870e-002
  3.8000000e+000  2.8225884e-001
  3.8200000e+000  4.3933408e-001
  3.8400000e+000  5.5559377e-001
  3.8600000e+000  6.2112139e-001
  3.8800000e+000  6.3064680e-001
  3.9000000e+000  5.8396647e-001
  3.9200000e+000  4.8590380e-001
  3.9400000e+000  3.4581831e-001
  3.9600000e+000  1.7671295e-001
  3.9800000e+000 -5.9751883e-003
  4.0000000e+000 -1.8578826e-001
  4.0200000e+000 -3.4673521e-001
  4.0400000e+000 -4.7471874e-001
  4.0600000e+000 -5.5877378e-001
  4.0800000e+000 -5.9200852e-001
  4.1000000e+000 -5.7216685e-001
  4.1200000e+000 -5.0176688e-001
  4.1400000e+000 -3.8780854e-001
  4.1600000e+000 -2.4108260e-001
  4.1800000e+000 -7.5148985e-002
  4.2000000e+000  9.4918960e-002
  4.2200000e+000  2.5390769e-001
  4.2400000e+000  3.8782874e-001
  4.2600000e+000  4.8515309e-001
  4.2800000e+000  5.3780545e-001
  4.3000000e+000  5.4183259e-001
  4.3200000e+000  4.9769037e-001
  4.3400000e+000  4.1013003e-001
  4.3600000e+000  2.8770016e-001
  4.3800000e+000  1.4191576e-001
  4.4000000e+000 -1.3825216e-002
  4.4200000e+000 -1.6547576e-001
  4.4400000e+000 -2.9961038e-001
  4.4600000e+000 -4.0461700e-001
  4.4800000e+000 -4.7170416e-001
  4.5000000e+000 -4.9563591e-001
  4.5200000e+000 -4.7513318e-001
  4.5400000e+000 -4.1291152e-001
  4.5600000e+000 -3.1535877e-001
  4.5800000e+000 -1.9188868e-001
  4.6000000e+000 -5.4035124e-002
  4.6200000e+000  8.5626072e-002
  4.6400000e+000  2.1462690e-001
  4.6600000e+000  3.2172315e-001
  4.6800000e+000  3.9787640e-001
  4.7000000e+000  4.3701625e-001
  4.7200000e+000  4.3651843e-001
  4.7400000e+000  3.9736174e-001
  4.7600000e+000  3.2395686e-001
  4.7800000e+000  2.2366967e-001
  4.8000000e+000  1.0608938e-001
  4.8200000e+000 -1.7886509e-002
  4.8400000e+000 -1.3706320e-001
  4.8600000e+000 -2.4096163e-001
  4.8800000e+000 -3.2074167e-001
  4.9000000e+000 -3.6995411e-001
  4.9200000e+000 -3.8505734e-001
  4.9400000e+000 -3.6565793e-001
  4.9600000e+000 -3.1446027e-001
  4.9800000e+000 -2.3693759e-001
  5.0000000e+000 -1.4076152e-001
  5.0200000e+000 -3.5048620e-002
  5.0400000e+000  7.0502489e-002
  5.0600000e+000  1.6650199e-001
  5.0800000e+000  2.4470562e-001
  5.1000000e+000  2.9872277e-001
  5.1200000e+000  3.2453495e-001
  5.1400000e+000  3.2078317e-001
  5.1600000e+000  2.8880467e-001
  5.1800000e+000  2.3242357e-001
  5.2000000e+000  9.7180413e-002
  5.2200000e+000  1.4674065e-002
  5.2400000e+000 -3.3145995e-003
  5.2600000e+000 -1.8190796e-002
  5.2800000e+000 -3.1526673e-002
  5.3000000e+000 -4.4899318e-002
  5.3200000e+000 -5.9414413e-002
  5.3400000e+000 -7.5341150e-002
  5.3600000e+000 -9.1922608e-002
  5.3800000e+000 -1.0739667e-001
  5.4000000e+000 -1.1922819e-001
  5.4200000e+000 -1.2451857e-001
  5.4400000e+000 -1.2052963e-001
  5.4600000e+000 -1.0523839e-001
  5.4800000e+000 -7.7831701e-002
  5.5000000e+000 -3.9055438e-002
  5.5200000e+000  8.6480350e-003
  5.5400000e+000  6.1251445e-002
  5.5600000e+000  1.1350469e-001
  5.5800000e+000  1.5951193e-001
  5.6000000e+000  1.9345497e-001
  5.6200000e+000  2.1036957e-001
  5.6400000e+000  2.0686914e-001
  5.6600000e+000  1.8171239e-001
  5.6800000e+000  1.3612791e-001
  5.7000000e+000  7.3838294e-002
  5.7200000e+000  7.6386597e-004
  5.7400000e+000 -7.5571068e-002
  5.7600000e+000 -1.4686659e-001
  5.7800000e+000 -2.0501347e-001
  5.8000000e+000 -2.4307919e-001
  5.8200000e+000 -2.5618854e-001
  5.8400000e+000 -2.4218343e-001
  5.8600000e+000 -2.0197080e-001
  5.8800000e+000 -1.3950540e-001
  5.9000000e+000 -6.1398992e-002
  5.9200000e+000  2.3805100e-002
  5.9400000e+000  1.0660968e-001
  5.9600000e+000  1.7767753e-001
  5.9800000e+000  2.2894574e-001
  6.0000000e+000  2.5460223e-001
  6.0200000e+000  2.5180112e-001
  6.0400000e+000  2.2102451e-001
  6.0600000e+000  1.6604133e-001
  6.0800000e+000  9.3463872e-002
  6.1000000e+000  1.1953301e-002
  6.1200000e+000 -6.8829983e-002
  6.1400000e+000 -1.3940227e-001
  6.1600000e+000 -1.9161274e-001
  6.1800000e+000 -2.1963540e-001
  6.2000000e+000 -2.2067185e-001
  6.2200000e+000 -1.9527574e-001
  6.2400000e+000 -1.4725710e-001
  6.2600000e+000 -8.3177829e-002
  6.2800000e+000 -1.1501418e-002
  6.3000000e+000  5.8495510e-002
  6.3200000e+000  1.1791172e-001
  6.3400000e+000  1.5935823e-001
  6.3600000e+000  1.7789794e-001
  6.3800000e+000  1.7166698e-001
  6.4000000e+000  1.4209716e-001
  6.4200000e+000  9.3709853e-002
  6.4400000e+000  3.3506616e-002
  6.4600000e+000 -2.9965725e-002
  6.4800000e+000 -8.7755398e-002
  6.5000000e+000 -1.3170376e-001
  6.5200000e+000 -1.5554494e-001
  6.5400000e+000 -1.5576238e-001
  6.5600000e+000 -1.3208781e-001
  6.5800000e+000 -8.7573807e-002
  6.6000000e+000 -2.8225500e-002
  6.6200000e+000  3.7765614e-002
  6.6400000e+000  1.0109056e-001
  6.6600000e+000  1.5255879e-001
  6.6800000e+000  1.8434181e-001
  6.7000000e+000  1.9106189e-001
  6.7200000e+000  1.7058075e-001
  6.7400000e+000  1.2437980e-001
  6.7600000e+000  5.7474155e-002
  6.7800000e+000 -2.2138036e-002
  6.8000000e+000 -1.0442969e-001
  6.8200000e+000 -1.7858822e-001
  6.8400000e+000 -2.3439508e-001
  6.8600000e+000 -2.6356767e-001
  6.8800000e+000 -2.6089184e-001
  6.9000000e+000 -2.2499583e-001
  6.9200000e+000 -1.5865938e-001
  6.9400000e+000 -6.8608244e-002
  6.9600000e+000  3.5192327e-002
  6.9800000e+000  1.4066811e-001
  7.0000000e+000  2.3505939e-001