As most of non-coherent radar on active duty has no or little clutter cancellation ability,whenever flying targets enter the area of ground clutter,it is very difficult for radar to observe targets.

The basic method of adaptive signal processing and the principles of canceling are introduced.

Based on the character of Jiang-huai Water-shed ecology environment, controlling countermeasures of vulnerability are put forward.

The compositions of alcohol petrol for motor vehicles and fire characteristic of it, as well as the countermeasures of fire fighting were discussed in this paper.

Negative coping style can influence mental health of undergraduates.

Research on APA adaptive interference cancellation method for detection of weak FECS;

Based on the factor graph representation of maximum a posteriori probabilities decoding of the user s information bits and the sum product algorithm, an iterative multiuser decoding based on parallel partial interference cancellation detection for coded CDMA system was proposed.

It can be restrained effectively by interference cancellation , and the realization of this technology needs the estimation of fading channels.