Explore MATLAB source code curated for "曲线图" with clean implementations, documentation, and examples.
Implementation of a line contact isothermal elastohydrodynamic lubrication program using the Newton-Raphson method, with visualization of pressure and film thickness distribution curves. The solution involves numerical computation of Reynolds equation with appropriate boundary conditions and convergence criteria.
This implementation provides the capability to plot Lyapunov exponent diagrams for chaotic systems, including downloadable code with chaotic system visualization programs
Utilizing 8 antenna array elements with the CAPON algorithm for Direction of Arrival (DOA) estimation, this study generates a curve plotting DOA estimation error versus Signal-to-Noise Ratio (SNR) variations.
Curve plots generated by multiple spatial spectrum estimation algorithms when incident signal angles are set at -22°, 6°, and 18° under different signal-to-noise ratio scenarios, with implementation approaches including MUSIC, Capon beamforming, and ESPRIT methods.
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.
This program computes MIMO channel capacity with simple implementations, generating plots for antenna configurations and SNR relationships. Ideal for graduation projects with expandable framework for advanced algorithms.