Time history and FFT for Forces and Moment data

1. Static drift data

• Towing speed, U_C = 1.531 m/s
• Sampling Rate, Δt = 100 Hz
• Sampling Time, T = 20 sec
• Number of data, N = 2000
• Frequency step, Δf = 1/N·Δt = 0.1 Hz in the FFT
• Peak frequencies near at 3, 4, 5, and 10 Hz.

2. Dynamic tests data

For FFT,

where, x = F_x, F_y, and M_z

           x_{FS = FS reconstruction of x}

3. Noise Test