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- Secure Acoustic Data Relay Terminal 保密音响数据转接终端
- Secure Acoustic Data Relay 保密音响数据转接
- It is an oceanographic ship that gathers underwater acoustic data, using sonar. 这是一只海洋研究船，用于收集海底声音资料，供声纳兵使用。
- The TDRSS (Tracking and Data Relay Satallite System), GPS/Glonnss and deep space network about the Space T. T. C. 在空间飞行器测控方面着重介绍了数据中继卫星、GPS/Glonns以及深空间跟踪网(DSN)的情况。
- This paper mainly studies yaw angle estimation and attitude control of Tracking and Data Relay Satellite(TDRS). 本文主要研究了中继卫星的偏航角估计和姿态控制问题。
- Mission planning and scheduling of TDRSS(Tracking and Data Relay Satellite System) are important to application of TDRSS. 摘要中继卫星任务规划与调度是中继卫星系统应用中的重要问题。
- The proposed algorithm can be used to demodulate high data rate and bandwidth efficient QPSK signal, which is used in Tracking and Data Relay Satellite System (TDRSS). 它可应用于中继卫星通信中高速数传且频带有效QPSK的同步解调。
- In the tracking and data relay satellite system(TDRSS), it is difficult for a receiver operating in the high dynamic situation to realize spread spectrum signal acquisition. 摘要在TDRS通信系统中，用户星相对于中继星的高动态性引入的多普勒频移对扩频信号的捕获造成了很大的困难。
- Navy Ocean Experimental Acoustic Data Bank 海军海洋实验音响数据库
- Although all of these digital data systems probably will be able to transmit directly to ground sites, China may be developing a system of data relay satellites to support global coverage. 尽管所有这些数字化信息系统可能会能够直接向地面站点传递信息，但是中国可能会开发一点数据中继卫星，以保障覆盖全球。
- Machinery Acoustic Data Information Center 机械音响数据情报中心
- One of the most important characteristics of single access link scheduling of TDRSS lies in that there was time windows constraint between tracking and data relay satellite(TDRS) and user spacecraft. 中继卫星单址链路调度问题的重要特点在于,中继卫星与用户航天器之间并非时时可见,因此通信任务存在可见时间窗口约束。
- Underwater Acoustic Data Acquisition 水声数据采集
- TDRS Tracking and Data Relay Satellite 跟踪域数据中继卫星
- Study on Underwater Acoustic Data Communication System 水声数据通信系统研究
- TDRSS Tracking and Data Relay Satellite System 跟踪与数据中继卫星系统
- THE DESIGN OF NETWORK DATA RELAY SYSTEM 网络数据接力系统设计及实现
- We'll need to secure a bank loan. 我们需获银行贷款。
- A climber needs secure footholds. 攀登的人脚踩的地方要很牢固。
- The child felt secure near its parents. 这个孩子在父母跟前感到很安全。
