So the real-time property is improved greatly. Second, the stimulating platform NS_2 is also analyzed and a new module to support the ASSM(Source Specific Aggregated Multicast) protocol is built. The routing functions are added in order to make NS_2 support the ASSM protocol.
其次，对网络仿真平台NS_2对组播的支持机制进行了深入的研究，建立了新的协议类型模块——源特定聚集组播，完成了相关路由方法的描述，使NS_2增加了对聚集组播的支持。
The last, stimulations are performed on the extended NS_2 platform. FDMA algorithm is used in the ASSM protocol. Comparisons to other group-tree matching algorithm are done in different stimulations.
最后，在扩充后的NS_2仿真平台上进行了源特定聚集组播的实验，将FDMA算法应用到源特定聚集组播中，并与现有典型算法进行了性能分析比较。
ASSM-ⅠAcoustics Concentration Profiler and Acoustic Doppler Current Profiler were applied to simultaneously observe suspended sediment concentrations and currents during dredged sediment disposal in the Changjiang Estuary.
中文摘要：在长江河口北槽抛泥过程中，应用ASSM-Ⅰ型声学悬浮泥沙观测系统观测悬沙浓度的时空分布规律，结合多普勒流速剖面仪走航式断面流速测量。