To improve the anti-interference for ELF/VLF communication based on modulated heating lower-ionosphere, chirp spread spectrum technology with strong anti-interference is combined with square wave ...

Game of the Week: Rhein Fire (4-2) takes on Raiders Tirol (4-3) It's a testament to how competitive the ELF is that we could have picked any one of three games with huge playoff implications this week ...

Electromagnetic waves radiated by a vertical electric dipole related to deep resource exploration are discussed. According to the tangential components of the field are continuous on the element ...