function psi = gaussian_modulated_cosine(t, f, sigma) % gaussian_modulated_sine: % input: % t - time grid % f - frequency of the sinusoid % sigma - standard deviation of the gaussian % % output: % psi - sinusoid modulated by a Gaussian % normalization factor c = 1 / (sigma * sqrt(2*pi)); psi = c * exp(-t.^2 / (2 * sigma^2)) .* cos(2 * pi * f * t); end