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An Iterative Algorithm for Doppler Spread Estimation in LOS environments

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Fig. 2 shows the convergence rates of our iterative algorithm under different K factors estimated by the I/Q-based method
Fig. 2. (a) The mean and (b) the RMSE of Doppler spread estimates versus the number of iterations under different K factors, θ 0 = π/3, f m = 150 Hz, and SNR = 40 dB.
Fig. 6. (a) The mean and (b) the RMSE of Doppler spread estimates versus Doppler spreads under K = 3 dB, θ 0 = π/3, and SNR = 40 dB; with 20 iterations.

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