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Quantum Radar by Marco Lanzagorta

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CHAPTER 4

Classical Radar Theory

In this chapter we will discuss the theory behind the operation of a classical radar. We will derive the radar equation and discuss at some length the radar cross sections that characterize spherical and flat rectangular targets. As this is a classical system, we have to assume that the number of photons is very large, and as a consequence, classical radar can be perfectly described by Maxwell’s equations without recurring to quantum theory.

4.1 THE RADAR EQUATION

Figure 4.1 describes the conceptual operation of a monostatic radar system1. A transmitter sends an electromagnetic pulse towards an airborne target located at a distance R. The power and gain of the transmitter are denoted by Pt and Gt, respectively. ...

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