Consider a received radar signal of the form(adsbygoogle = window.adsbygoogle || []).push({});

[tex] s(t) = \frac{p e^{i 2 \pi f ( \frac{2 R(t)}{c} )}}{ [4 \pi R(t)]^2} [/tex]

where p is the reflectivity value, f is the carrier frequency, and R(t) is the range. In some cases I have seen this written as

[tex] s(t) = p e^{ i 2 \pi f ( \frac{2 R(t)}{c} )} [/tex]

(That is in many cases the geometric spreading is ignored). My question is can the [itex] [4 \pi R(t)]^2 [/itex] be eliminated?

Note that I am a math grad student working on a research project in radar, so I am not sure about the specifics reasons this is done.

Additional Details

It is assumed that the antenna is an isotropic point source and the target is a point scatter. Also, the incident wave is assumed to be a complex sinusoidal.

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Radar received field no spreading

Loading...

Similar Threads - Radar received field | Date |
---|---|

High end Radar receiver sensitivities | Jul 7, 2017 |

Pointer to data wanted please -- looking for a primer on phased array radar | May 20, 2017 |

Basic phased array radar questions | Jan 29, 2017 |

Radar antenna: measuring H or E? | May 18, 2015 |

**Physics Forums - The Fusion of Science and Community**