![Fourier integral, transform. Magnitude and phase spectrum. Theorems. Impulse, rectangle, triangle, Heaviside unit step, sign functions. Convolution. Correlation, autocorrelation. Fourier integral, transform. Magnitude and phase spectrum. Theorems. Impulse, rectangle, triangle, Heaviside unit step, sign functions. Convolution. Correlation, autocorrelation.](https://solitaryroad.com/c903/ole24.gif)
Fourier integral, transform. Magnitude and phase spectrum. Theorems. Impulse, rectangle, triangle, Heaviside unit step, sign functions. Convolution. Correlation, autocorrelation.
![frequency response - Calculating the Fourier transform of shifted scaled unit step function - Signal Processing Stack Exchange frequency response - Calculating the Fourier transform of shifted scaled unit step function - Signal Processing Stack Exchange](https://i.stack.imgur.com/xHw1N.png)
frequency response - Calculating the Fourier transform of shifted scaled unit step function - Signal Processing Stack Exchange
![Find the Fourier transform fk(k) of a step function fx(x) (Fig. A.6a), for fx(x) equal to f0 in the range -a≤ x < a and zero everywhere else. | Holooly.com Find the Fourier transform fk(k) of a step function fx(x) (Fig. A.6a), for fx(x) equal to f0 in the range -a≤ x < a and zero everywhere else. | Holooly.com](https://holooly.com/wp-content/uploads/2021/09/FIGURE-A.6-768x552.png)