The analysis of an ionospheric heating experiment in polar region

Based on the incoherent scatter radar data of the ionosphere heating experiment carried out in polar region on November 23th, 2011. The disturbance characteristic of electron density was analyzed, and a large density enhancement was found. The enhancement percent can be up to 500% near the reflection height, and away from the resonance region, the density enhancement can also be more than 70% in the height of 300km-580km. According to the analysis of incoherent scatter spectra, it is found that the huge enhancement in the reflection region was caused by coherent scatter, but the other enhancement should be true and the mechanism of electron density enhancement is presented.