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- single frequency duplex 单频双工制
- Harmonics can be added to a wave which has a single frequency to produce a complex wave. 谐音加在单频波上产生复波。
- The phase velocity basically tells you how fast a pure sine wave (with a single frequency) moves. 相速度可以告诉我们一个纯正弦波的传播速度。
- The observed signals are filtered and demodulated into a number of single frequency stationary signals. 观测信号经滤波和解线调处理，变换为一系列单频平稳信号。
- Secondly, we generated different single frequency sections by rearranging frequency contents. 然后按照频率重排产生共频率的剖面；
- Experimental Studies of Single Frequency DBR Fiber Laser and Temperature Sensing[J]. 引用该论文 黄文财;明海;陈曦曜;谢建平;许立新;王安廷;吕亮;吴云霞.
- How can this triple-decker system be played over several octaves so as to produce a single frequency? 这种三层系统如何从几个八度音阶当中发出某一个频率呢？
- four frequency duplex telegraphy 四频双工电报
- While single frequency tones worked on certain phone routes, the most common signaling on the then long distance network used Multi-Frequency tones. 而某些单频音调闪耀电话线最常见的则长途信令网采用多频音调。
- The develop ment of novel single frequency devices shows a bright future for near infrared laser diodebased gas sensing. 新型单频器件发展表明近红外激光二极管气体传感具有广阔前景。
- But when the telescope is dallying at a specific point in the sky, there is no point in recording on a single frequency for an extended period of time. 当望远镜在空中某个特定方向上停了下来，在一个频率上记录一大段时间就没什么用处了。
- Some excellent methods for optimizing the coverage of SFN are reviewed in this paper. A method for constructing single frequency network with low-power transmitters is proposed. 摘要介绍了国际上流行的一些单频网覆盖优化方法，并提出了采用对人体辐射影响较小的小功率发射机进行信号覆盖的方案。
- It is recommended that selecting observables after a running average filter or combination as a detection observable can detect and correct cycle slips for single frequency. 因此，本文选择合适的经过平滑或组合处理后的观测数据作为探测周跳的检验量，探测并改正单个频点上的周跳。
- Based on the acquisition principle of GPS receivers,effect of single frequency interference on GPS C/A code receiver acquisition performance is analyzed. 在GPS接收机信号捕获原理的基础上,分析了点频干扰对接收机捕获性能的影响。
- Wireless frequencies are a scarce resource, so wireless providers use multiplexing to send multiple calls over a single frequency. 无线频率是稀有的资源,因此无线频率提供商使用多路复用技术通过一个频率发送多个呼叫。
- For two degrees of freedom vehicle model, the simulation of vehicle performance under the excitation of single frequency, signal is studied, its results show the adjustable fuzzy controller can evidently reduce the acceleration of the suspended mass. 针对简化的汽车模型，在以单频信号作为激励源的仿真研究过程中，该算法对悬架系统的振动控制收到了较好的效果。
- The real single frequency sinusoidal signal under white Gaussian noise is common signal in industry.This paper presents a new method for phase estimation of sinusoidal signal based on bispectrum. 高斯噪声背景下的单频实正弦波信号是工业现场遇到较多的一类信号,本文针对此类信号提出了一种基于双谱分析的正弦波初相估计方法。
- The method to measure moisture content of pressboard with single frequency is discussed, with corresponding models and fitting parameters, which provides a theory basis for the on-site measurement. 强调要根据被测绝缘结构尺寸和测量条件,确定传感器的电极及基片、通道数、穿透深度、信号强度和合理安装方式等方面。
- Furthermore, the kinetic equations for sonolysis of chlorobenzene at different single frequency and combined frequencies were also described. 多频超声场中氯苯降解过程符合虚拟一级反应特征，同时给出了3种频率及其频率组合条件下氯苯的超声降解动力学特征方程。
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
