| 1. | Estimation on bers of digital fiber - optic communication links using importance sampling 用重要性抽样方法估计数字光纤通信链路的误码率 |
| 2. | The fiber - optic systems are developing into wide - band fiber - optic communication systems with huge capacity 光纤通信系统正在向宽带、大容量的方向发展。 |
| 3. | However , the recent demand for immediate expansion of the fiber - optic communication window has been an area of significant interest 那么对于增大edsfs带宽及谱线平坦化的研究就显得尤为重要,而一个主要的实现方式就是在edsfs中加入滤波器。 |
| 4. | National laboratory on local fiber - optic communication networks advanced optical communication systems , school of electronics engineering and computer science , peking university , beijing , 100871 北京大学信息科学技术学院,区域光纤通信网与新型光通信系统国家重点实验室,北京, 100871 |
| 5. | The positive and negative frequency expressions of quasi - monochromatic optical fields of a pulse in fiber - optic communication and the positive and negative frequency forms of fourier transformations and nonlinear schr ? dinger ( nls ) equations are discussed 摘要讨论光通信中脉冲的准单色光光场的正负频表示,正负频形式的傅里叶变换,正负频形式的非线性薛定谔方程及它们之间的关系。 |
| 6. | With the development of fiber - optic communication systems and fiber - optic sensors , the linbo _ 3 integrated optical intensity modulators consisting of m - z optical waveguide and cpw modulation electrode structure get an extensively application 随着光纤通信与光纤传感的发展,以linbo _ 3为衬底材料、以m - z干涉仪为光波导结构、采用共面行波电极( cpw )为调制电极的集成光学强度调制器得到了越来越广泛的应用。 |
| 7. | As far the trend of fiber - optic communication systems is to obtain higher capacity , and higher transmission speed . the intensity modulator is widely applied to a lot of fields . it is necessary for the intensity modulator subject to the laser pulse rectification systems that should be provided with following performances as high speed signal transmission and quick response and so on 光纤通信向着大容量、高速宽带方向发展,光纤延迟线系统要求强度调制器具有高速信号传输、快速响应的特点,因此以linbo _ 3为衬底材料的集成光学强度调制器具有十分良好的应用前景。 |
| 8. | As far the trend of fiber - optic communication systems is to obtain higher capacity , and higher transmission speed . the intensity modulator is widely applied to a lot of fields . it is necessary for the intensity modulator subject to the laser pulse rectification systems that should be provided with following performances as high speed signal transmission and quick response and so on 光纤通信向着大容量、高速宽带方向发展,激光脉冲整形调制时要求强度调制器具有高速调制、高消光比工作特点,光纤延迟线系统要求强度调制器具有高速信号传输、快速响应的特点,因此以linbo _ 3为衬底材料的集成光学强度调制器具有十分良好的应用前景。 |
| 9. | In this dissertation , the researches on the application of cdma in fiber - optic communication systems have been reviewed , and several key techniques in the application are proposed with theoretical analysis . in traditional researches and applications of the hfc cdma communication system , the gold sequence was used as the users " address code . in this paper , we analyze the characteristics of the m sequence in detail 本文突破了以往在hfc系统中使用cdma扩频技术通信时,通常都采用gold序列来作为地址码的惯例,分析和提出了在hfc的特定环境中,使用同一m序列在某时刻具有的不同相移序列,来构成一个小区的地址编码,能够达到多用户通信时比使用gold序列进行通信具有更好的相关特性。 |