High sensitivity detection scheme for corona discharge radiation signal

In order to detect corona discharge radiation signal in complex electromagnetic environment, a simulation platform was built to analysis the time domain and frequency domain features of corona discharge radiation signal. Combined with the noise frequency distribution measured in natural environment, the arrow-band detection technology was used. By designing a specific band directional antenna, designing a high bandwidth low-noise amplifier, and the application of digital processing terminals, etc., a high-sensitivity detection system for weak signals was built. And the corona discharge radiation signal was successfully detected by the system at the distance of 600 meters. The feasibility of detecting corona discharge radiation signal in remote detection was proved by the experimental results. And an important detection technique for targets was provided.