估计误差 Resources

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Given: Signal center wavelength = 2, antenna element spacing = 1 meter, snapshot number = 2000, four source signals in space with known frequencies and directions. Required: 1) Analyze covariance matrix eigenvalues without noise and explain their characteristics. 2) Apply MUSIC, CAPON, and ESPRIT algorithms for DOA estimation under four scenarios (noise-free and 10dB SNR with white Gaussian noise) and plot spatial spectra. 3) Plot DOA estimation error curves versus SNR (-20dB to +20dB) using all three algorithms.

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