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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GenerateGaussianNoise(PSD):
 """ GenerateGaussianNoise - function to generate Fourier domain Gaussian detector noise colored by a detector PSD. PSD - Noise power spectral density with which to color the Gaussian noise. Returns Noise - complex Fourier domain Gaussian detector noise colored by a detector PSD. Sarah Gossan 2012. Last updated 02/18/14. """


    Noise = np.zeros((N_fd),complex)
    # Generate noise from PSD 
    Real = np.random.randn(N_fd)*np.sqrt(PSD/(4.*dF))
    Imag = np.random.randn(N_fd)*np.sqrt(PSD/(4.*dF))
    Noise = Real + 1j*Imag

    return Noise