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- IEEE 802.11b PHY layer includes two sublayer, PLCP layer and PMD layer. IEEE802.;11b物理层包括PLCP和PMD两个子层。
- In the PHY layer, the thesis focuses on the design of digital circuits and use the Matlab to simulate the system. 对于物理层，我们使用Matlab工具完成了针对基带信号处理的系统设计和仿真。
- Then we study the 802.11 protocol and use FPGA to realize the WEP algorithm of the MAC layer and function of the PHY layer, mainly in base band. 其次采用单片机+FPGA结构实现了无线局域网802.;11协议的MAC层WEP算法和物理层功能，其中物理层主要集中在基带部分。
- This paper studies an UWB-based wireless sensor networks and builds a cross-layer optimization model with joint consideration of MAC layer scheduling，PHY layer power control and of network layer. 在综合考虑MAC层调度、物理层功率控制、网络层路由三方面因素的基础上，结合超宽带技术大带宽、低信号功率的特点，以实现网络最大数据传输速率为目标，构建了基于超宽带技术的无线传感器网络跨层优化模型。
- In terms of the characteristics of CCM_A process model, OPNET is chosen as a platform to realize the layered simulation of the model in PMCD. 根据CCM_A过程模型特点，选择OPNET作为平台，实现产品多领域协同设计的CCM_A过程模型的层次仿真。
- atmosphere boundary layer simulation 大气边界层模拟
- atmospheric boundary layer simulation 大气边界层模拟
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Atmospheric Boundary Layer Simulation in a 1.4m Aeronautical Wind Tunnel 在1.;4米航空风洞中模拟大气边界层
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- Computer simulation of an in-flight emergency. 计算机模拟飞行途中的紧急情况
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- Phy the third instar larvae. llocolpa sp. 柳蜷叶丝角叶蜂
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- PHY layer 物理层
