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EE3190 Optical Sensing and Imaging

EE3190 Optical Sensing and Imaging. Discrete Systems. Linear Systems. Superposition. x’. x. Linear Systems. Superposition. x’. x. Linear Systems. Superposition. x’. x. Linear Systems. Superposition. x’. x. Linear Systems. Superposition. x’. x. Linear Systems. Superposition.

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EE3190 Optical Sensing and Imaging

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  1. EE3190 Optical Sensing and Imaging Discrete Systems

  2. Linear Systems • Superposition x’ x

  3. Linear Systems • Superposition x’ x

  4. Linear Systems • Superposition x’ x

  5. Linear Systems • Superposition x’ x

  6. Linear Systems • Superposition x’ x

  7. Linear Systems • Superposition x’ x

  8. Linear Systems • Superposition x’ x

  9. Linear Systems

  10. Fresnel Propagation

  11. Matlab Implementation N = 64; M = 128; lambda = 1e-6; d = 50; dx = 0.01; x = [-N:1:N]*dx; dy = 1.25e-5; y = [-M:1:M]*dy; [xx,yy] = meshgrid(x,y); K = exp(j*2*pi*d/lambda)/sqrt(j*lambda*d); H = K*exp(j*(pi/(lambda*d))*(xx-yy).^2);

  12. Matlab Implementation U0 = (abs(x) <= 1/2); figure(1); clf; plot(x, U0); ylabel('amplitude'); xlabel('position');

  13. Matlab Implementation U0 = reshape(U0, 2*N+1, 1); U1 = H*U0; figure(2); clf; plot(y, abs(U1)); ylabel('amplitude'); xlabel('position');

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