Swept sine waves, white random noise, and the Dirac impulse function all provide flat responses and all are available in arbitrary waveform generators. Keeping in mind that the impulse function is the ...

It introduces step and impulse functions and their responses in LTI circuits. It covers the solving of convolution integrals and differential equations, the transformation of signals to Fourier series ...

Norman R. Swanson, Clive W. J. Granger, Impulse Response Functions Based on a Causal Approach to Residual Orthogonalization in Vector Autoregressions, Journal of the American Statistical Association, ...