The amplitude modula- tion screening,frequency modulation screening,and hybrid screening technologies were introduced through comparing and analyzing advantage and disadvantage of different screening technologies.

The research of digital screening technology on the existing conditions in recent years was summarized including amplitude modulation screening,frequency modulation screening,and hybrid screening.

As an important technology of RIP,quality of computer screening algorithm has a direct effect on reproduction result,an approach to improvement of reproduction result and algorithm is explored through discussing and experimenting on computer random screening,FM screening and hybrid screening.

Comparison on the road performances of FORTAAR fiber-reinforced asphalt concrete mixture;