Simple problem regarding rectangular pulse shifting

1. Why we are not using rectangular pulse for transmission?
2. How do you find the Fourier transform of a rectangular pulse?
3. What is a rectangular pulse signal?
4. What is the autocorrelation of a rectangular pulse?

Why we are not using rectangular pulse for transmission?

The second main reason for not using rectangular pulses are that eddy currents are generated in the conductive materials inside and outside of the probe.

How do you find the Fourier transform of a rectangular pulse?

The main lobe becomes narrower with the increase in the width of the rectangular pulse. The phase spectrum of the rectangular function is an odd function of the frequency (ω). When the magnitude spectrum is positive, then the phase is zero and if the magnitude spectrum is negative, then the phase is (±π).

What is a rectangular pulse signal?

A signal that produces a rectangular shaped pulse with a width of τ (where 𝜏 = 1 for the unit rectangular function) centred at 𝑡 = 0 is known as rectangular signal. The rectangular signal pulse also has a height of 1. Mathematically, the unit rectangular signal is defined as, ∏(tτ)=1for|t|≤(τ2) 0otherwise.

What is the autocorrelation of a rectangular pulse?

Explanation: The auto-correlation function is the method of correlating the various instants of the signal with itself and that of a rectangular pulse of duration T is a triangular pulse of duration 2T.