analyzing filter
4.The action and demand of the anti alias filter in the system are recounted. After analyzing the switched capacitor IC-MAX290series filters,the anti alias filter is developed based on MAX293EPA. Espesially,the“resonance”phenomenon is analyzed theoretically and the analysis is proved by the experiment.
5.Through analyzing the traffic control technology in Linux operating system, it actualizes the QoS-filter modeling Router system based on Redhat 9.0 by Linux’s QoS assurance mechanism.
8.Based on analyzing characteristic of low-light-level image, aiming at the characteristicof low-light-level image, a great deal of noise and low contrast, combining the characteristic of TMS320C64xx, 3×3 median filter algorithm and quick median filter algorithm is ameliorated for the purpose of improving processing speed.

