Linear prediction model based suppression technology for VLF atmosphere noise signals

Linear prediction model based pulse suppression technology is applied to reject atmosphere noise from VLF communication signals. The relativity of the received signals is modeled with a linear prediction filter, and the decorrelation is implemented by an inverse filter. This enhances the detection of the VLF atmospheric impulse signals markedly. Simulations are carried out based on samples of actual VLF signals, and the results show that gain more than 10dB is gotten than only cutting method is adopted..