% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 6 7 -5 4 -2 5 1 -1 -2 2 2 -3 2 1 -4 -4 2 -3 -1 -5 -4 2 4 3 3 -1 0 -4 5 -4 -2 1 2 4 -4 -6 4 4 -3 -4 -2 -4 -5 1 -3 -4 0 7 -1 2 1 4 -2 -2 2 4 2 -3 4 3 -3 0 -2 2 -3 5 -1 3 2 2 4 -5 -1 -1 -3 3 -2 -5 -2 3 -1 0 -2 4 3 1 -5 -1 4 -2 2 -2 3 -2 2 0 2 -3 4 4 3 -2 -3 3 -2 4 6 -2 4 5 6 -5 4 -3 3 4 -3 -3 -1 -1 -5 0 0 -1 -4 -2 -1 -5