in fourier transforms of normal baseband sigal , spectral components are replicated on both +ve and -ve sides of frequency axis.(adsbygoogle = window.adsbygoogle || []).push({});

i know that both -ve and +ve frequency components contribute to the total power of the signal

but i dont know the physical significance of the -ve frequencies used?

are these -ve frequencies just the mathematical imaginary tool ?

**Physics Forums | Science Articles, Homework Help, Discussion**

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

# What is negative frequency(fourier transform)

**Physics Forums | Science Articles, Homework Help, Discussion**