Dataseries 1
Rigid ground
Frequency, Hz -  10log_1_0 \sigma, dB
2.0000e+01  -2.2750e+01  
4.0000e+01  -1.6807e+01  
6.0000e+01  -1.3413e+01  
8.0000e+01  -1.1091e+01  
1.0000e+02  -9.3742e+00  
1.2000e+02  -8.0549e+00  
1.4000e+02  -7.0158e+00  
1.6000e+02  -6.1870e+00  
1.8000e+02  -5.5191e+00  
2.0000e+02  -4.9757e+00  
2.2000e+02  -4.5247e+00  
2.4000e+02  -4.1443e+00  
2.6000e+02  -3.8143e+00  
2.8000e+02  -3.5193e+00  
3.0000e+02  -3.2459e+00  
3.2000e+02  -2.9869e+00  
3.4000e+02  -2.7376e+00  
3.6000e+02  -2.4972e+00  
3.8000e+02  -2.2665e+00  
4.0000e+02  -2.0475e+00  
4.2000e+02  -1.8422e+00  
4.4000e+02  -1.6533e+00  
4.6000e+02  -1.4807e+00  
4.8000e+02  -1.3259e+00  
5.0000e+02  -1.1867e+00  
5.2000e+02  -1.0613e+00  
5.4000e+02  -9.4744e-01  
5.6000e+02  -8.4231e-01  
5.8000e+02  -7.4327e-01  
6.0000e+02  -6.4846e-01  
6.2000e+02  -5.5715e-01  
6.4000e+02  -4.6869e-01  
6.6000e+02  -3.8389e-01  
6.8000e+02  -3.0351e-01  
7.0000e+02  -2.2871e-01  
7.2000e+02  -1.6058e-01  
7.4000e+02  -9.9277e-02  
7.6000e+02  -4.5842e-02  
7.8000e+02  0.0000e+00  
8.0000e+02  3.8912e-02  
8.2000e+02  7.3210e-02  
8.4000e+02  1.0724e-01  
8.6000e+02  1.3259e-01  
8.8000e+02  1.5779e-01  
9.0000e+02  1.8284e-01  
9.2000e+02  2.0775e-01  
9.4000e+02  2.2841e-01  
9.6000e+02  2.4486e-01  
9.8000e+02  2.6125e-01  
1.0000e+03  2.7350e-01  
1.0200e+03  2.8164e-01  
1.0400e+03  2.8571e-01  
1.0600e+03  2.8571e-01  
1.0800e+03  2.8164e-01  
1.1000e+03  2.7757e-01  
1.1200e+03  2.6942e-01  
1.1400e+03  2.5715e-01  
1.1600e+03  2.4896e-01  
1.1800e+03  2.4075e-01  
1.2000e+03  2.2841e-01  
1.2200e+03  2.2016e-01  
1.2400e+03  2.0775e-01  
1.2600e+03  1.9947e-01  
1.2800e+03  1.8284e-01  
1.3000e+03  1.7033e-01  
1.3200e+03  1.4940e-01  
1.3400e+03  1.3259e-01  
1.3600e+03  1.1147e-01  
1.3800e+03  9.0257e-02  
1.4000e+03  6.4660e-02  
1.4200e+03  4.7512e-02  
1.4400e+03  2.5980e-02  
1.4600e+03  8.6772e-03  
1.4800e+03  -9.5650e-03  
1.5000e+03  -2.6136e-02  
1.5200e+03  -4.1894e-02  
1.5400e+03  -5.7709e-02  
1.5600e+03  -7.3581e-02  
1.5800e+03  -8.9956e-02  
1.6000e+03  -1.0728e-01  
1.6200e+03  -1.2423e-01  
1.6400e+03  -1.4125e-01  
1.6600e+03  -1.5788e-01  
1.6800e+03  -1.7277e-01  
1.7000e+03  -1.8589e-01  
1.7200e+03  -1.9724e-01  
1.7400e+03  -2.0679e-01  
1.7600e+03  -2.1409e-01  
1.7800e+03  -2.2048e-01  
1.8000e+03  -2.2551e-01  
1.8200e+03  -2.3008e-01  
1.8400e+03  -2.3421e-01  
1.8600e+03  -2.3833e-01  
1.8800e+03  -2.4247e-01  
1.9000e+03  -2.4660e-01  
1.9200e+03  -2.4982e-01  
1.9400e+03  -2.5212e-01  
1.9600e+03  -2.5304e-01  
1.9800e+03  -2.5258e-01  
2.0000e+03  -2.5028e-01  

Dataseries 2
3*10^3
Frequency, Hz -  10log_1_0 \sigma, dB
2.0000e+01  -2.3738e+01  
3.0000e+01  -2.1305e+01  
4.0000e+01  -1.9788e+01  
5.0000e+01  -1.8821e+01  
6.0000e+01  -1.8035e+01  
7.0000e+01  -1.7378e+01  
8.0000e+01  -1.6747e+01  
9.0000e+01  -1.6139e+01  
1.0000e+02  -1.5542e+01  
1.1000e+02  -1.4951e+01  
1.2000e+02  -1.4384e+01  
1.3000e+02  -1.3828e+01  
1.4000e+02  -1.3303e+01  
1.5000e+02  -1.2796e+01  
1.6000e+02  -1.2321e+01  
1.7000e+02  -1.1870e+01  
1.8000e+02  -1.1446e+01  
1.9000e+02  -1.1049e+01  
2.0000e+02  -1.0675e+01  
2.1000e+02  -1.0273e+01  
2.2000e+02  -9.9212e+00  
2.3000e+02  -9.6095e+00  
2.4000e+02  -9.3328e+00  
2.5000e+02  -9.0868e+00  
3.0000e+02  -7.9751e+00  
4.0000e+02  -6.0502e+00  
5.0000e+02  -4.4370e+00  
6.0000e+02  -3.2003e+00  
7.0000e+02  -2.2753e+00  
8.0000e+02  -1.5964e+00  
9.0000e+02  -1.0969e+00  
1.0000e+03  -7.2219e-01  
1.1000e+03  -5.0561e-01  
1.2000e+03  -3.7962e-01  
1.3000e+03  -3.3342e-01  
1.4000e+03  -3.4610e-01  
1.5000e+03  -3.8342e-01  
1.6000e+03  -4.2920e-01  
1.7000e+03  -4.9197e-01  
1.8000e+03  -5.6951e-01  
1.9000e+03  -6.4291e-01  
2.0000e+03  -7.0530e-01  

Dataseries 3
3*10^4
Frequency, Hz -  10log_1_0 \sigma, dB
2.0000e+01  -2.2764e+01  
3.0000e+01  -1.9582e+01  
4.0000e+01  -1.7151e+01  
5.0000e+01  -1.5527e+01  
6.0000e+01  -1.4121e+01  
7.0000e+01  -1.3078e+01  
8.0000e+01  -1.2160e+01  
9.0000e+01  -1.1422e+01  
1.0000e+02  -1.0793e+01  
1.1000e+02  -1.0229e+01  
1.2000e+02  -9.7922e+00  
1.3000e+02  -9.3405e+00  
1.4000e+02  -9.0170e+00  
1.5000e+02  -8.6646e+00  
1.6000e+02  -8.4043e+00  
1.7000e+02  -8.1276e+00  
1.8000e+02  -7.9102e+00  
1.9000e+02  -7.6879e+00  
2.0000e+02  -7.4958e+00  
2.1000e+02  -7.1721e+00  
2.2000e+02  -6.8652e+00  
2.3000e+02  -6.5985e+00  
2.4000e+02  -6.3603e+00  
2.5000e+02  -6.1565e+00  
3.0000e+02  -5.5909e+00  
4.0000e+02  -4.6256e+00  
5.0000e+02  -3.6724e+00  
6.0000e+02  -2.8441e+00  
7.0000e+02  -2.1360e+00  
8.0000e+02  -1.5509e+00  
9.0000e+02  -1.1220e+00  
1.0000e+03  -7.9616e-01  
1.1000e+03  -5.5814e-01  
1.2000e+03  -4.1723e-01  
1.3000e+03  -3.5269e-01  
1.4000e+03  -3.4751e-01  
1.5000e+03  -3.7110e-01  
1.6000e+03  -4.0911e-01  
1.7000e+03  -4.6724e-01  
1.8000e+03  -5.3990e-01  
1.9000e+03  -6.1030e-01  
2.0000e+03  -6.7171e-01  

Dataseries 4
3*10^5
Frequency, Hz -  10log_1_0 \sigma, dB
2.0000e+01  -2.2654e+01  
3.0000e+01  -1.9393e+01  
4.0000e+01  -1.6809e+01  
5.0000e+01  -1.5058e+01  
6.0000e+01  -1.3520e+01  
7.0000e+01  -1.2310e+01  
8.0000e+01  -1.1290e+01  
9.0000e+01  -1.0370e+01  
1.0000e+02  -9.6537e+00  
1.1000e+02  -8.9245e+00  
1.2000e+02  -8.4013e+00  
1.3000e+02  -7.8225e+00  
1.4000e+02  -7.4232e+00  
1.5000e+02  -6.9767e+00  
1.6000e+02  -6.6434e+00  
1.7000e+02  -6.3246e+00  
1.8000e+02  -6.0276e+00  
1.9000e+02  -5.8071e+00  
2.0000e+02  -5.5471e+00  
2.1000e+02  -5.3118e+00  
2.2000e+02  -5.0223e+00  
2.3000e+02  -4.7899e+00  
2.4000e+02  -4.5643e+00  
2.5000e+02  -4.3795e+00  
3.0000e+02  -3.6411e+00  
4.0000e+02  -2.5838e+00  
5.0000e+02  -1.8263e+00  
6.0000e+02  -1.2505e+00  
7.0000e+02  -8.2967e-01  
8.0000e+02  -5.8886e-01  
9.0000e+02  -3.7470e-01  
1.0000e+03  -1.7774e-01  
1.1000e+03  -8.9956e-02  
1.2000e+03  -9.7500e-02  
1.3000e+03  -1.0461e-01  
1.4000e+03  -1.6690e-01  
1.5000e+03  -2.1272e-01  
1.6000e+03  -2.7566e-01  
1.7000e+03  -3.4751e-01  
1.8000e+03  -4.1436e-01  
1.9000e+03  -4.7014e-01  
2.0000e+03  -5.1978e-01  

