# Blog

## What is a radar equation? • Radar range equation is useful to know the range of the target theoretically. In this chapter, we will discuss the standard form of Radar range equation and then will discuss about the two modified forms of Radar range equation.

## How to calculate the maximum range of radar for given specifications?

• We can use the following modified form of Radar range equation in order to calculate the maximum range of Radar for given specifications. R M a x = [ P t σ A e 2 4 π λ 2 S m i n] 1 / 4. Substitute, the given parameters in the above equation. R M a x = [ ( 400 × 10 3) ( 30) ( 5 2) 4 π ( 0.003) 2 ( 10) − 10] 1 / 4.

## How do you calculate the power density of a radar?

• Consider a monostatic radar. Let Pt be the transmitted power, G the antenna gain, R the distance of the target. Then, the power density at the target is given by: (10.4)P d = PtG 4πR2. Assume the target receives the incident power with an area σ, called the radar cross section (RCS), and radiates isotropically.  