Comparison between time-frequency analysis methods of yarn signal;

Analysis and research of yarn signal spectrum based on Fourier and Hilbert;

The original yarn signal is decomposed into finite intrinsic mode functions by empirical mode decomposition and Hilbert spectrum is acquired.

Currently monitor function could not be realized via the interface between the monitor device and wireless signal device of the hump shunting locomotive,which is a hidden danger to the safety of hump shunting and leads to frequent occurrence of accidents.

also eliminating the signal line trouble were introduced.

This paper introduces the main PCB rules based on Pentium M for mobile computer architecture design in military area,settles cascade rules of layout, inducts simulation discussion to crosstalk of parallel signal lines, presents the matching rules of time length,and offers an execution way for reducing motherboard area and improving making process.