Near real time data exchange system

The unnormalised 2D power spectrum F(x’,y’) is estimated simply by taking the modulus of the FFT on the positive x’>0 semiplane, where x’ is the wave number (in units of 1/km) corresponding to the x-direction. In the second step, a one-dimensional spectrum, P(r’) is obtained from the 2D power spectrum, using the following relation: ................
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