High-frequency abnormal signals are mainly caused by the typhoon which originated on western Pacific Ocean and go to China mainland or near regions,with percentage of 90%,and the signals are positively correlated with the velocity in center of typhoon.

The Monitoring Technology of preternatural signal that persist microsecond.in optical communication;

Seismic geophone tailcone is improved so as to enhance the coupling between geophone and ground and then to reduce the absorption attenuation of high frequency signal in surface low-velocity layer.

Meanwhile,research on the reliability of transient-based protection under the interferer of high frequency signal was performed.

This technology is much fit for high frequency signals.

High-resolution seismic prospecting is one of the common geophysical prospecting methods in engineering investigation, and it is very important to excite high-frequency signals.

In view of the anti-jamming question of high-frequency protection,the paper first analyzes the high-frequency channel of high-frequency protection,the generation and intruding means of lightning waves and other traveling waves,thus discriminating different characteristics among high-frequency signals,lightning waves and other traveling waves.