coherent communication system
英 [kəʊˈhɪərənt kəˌmjuːnɪˈkeɪʃn ˈsɪstəm]
美 [koʊˈhɪrənt kəˌmjuːnɪˈkeɪʃn ˈsɪstəm]
网络 相关通信制; 相干通信系统
双语例句
- Research on Modulation Schemes and Automatic Polarization Control Technology in Coherent Optical Communication System
相干光通信系统中调制码型及自动偏振控制技术的研究 - And displays many coherent optical communication system which use these practical technology.
并列举了采用这些实用技术的相干光通信系统。 - Research on a Balanced Detector of Coherent Optical Fiber Communication System
相干光纤通信系统平衡探测器的研究 - Then they applied the methods of Mobius transform to the coherent modulation-demodulation system and put forward a new communication system, namely the Chen-Mobius communication system.
应用于相干调制解调的通信系统中，提出一种新的通信系统，即新型Chen-Mobius通信系统。 - A method of fast carrier recovering for PSK signal in a coherent communication system is introduced in this paper. The theoretic analysis and the experimental result are given, and the further improving method is also given.
本文给出了一种相干通信系统中对移相键控（PSK）调相信号快速恢复载波的方法进行了理论分析，给出了实验结果，并指出了改进的方法。 - In this paper, the polarization control of optical fiber in coherent optical communication system is theoretically studied and the mathematical model is proposed. Consequently, a reset equation of fiber squeezer in solving endless polarization control is obtained.
本文研究了相干光通信系统中的偏振控制原理，提出了数学模型，推导出用于解决无终限偏振控制的挤压控制器的复位方程。 - The Experimental Study on Two-Branch Low-IF Phase-Diversity FSK Coherent Optical Fiber Communication System
二分支低中频相位分集FSK相干光纤通信实验系统 - A coherent optical fiber communication system ( 0.633 μ m wavelength) is introduced.
本文介绍新近研制的0.633μm波段相干光光纤通信系统。 - According to the model of coherent optical communication, we used Monte Carlo law to simulate coherent optical communication system by dataflow simulation.
根据相干光通信系统模型，借助MonteCarlo仿真法，对相干光通信系统进行了数据流仿真。 - Coherent signal is common in radio communication system, the problem of coherent signal DOA estimation is studied and compare the property of forward spatial smoothing with that of for-backward spatial smoothing.
分析了相干信号的DOA估计问题，对比研究了前向空间平滑技术和前后向空间平滑技术的性质，提出了一种子阵列协方差矩阵的计算方法。 - The effect of single mode fiber polarization mode transmission on the performance of PSK coherent optical fiber communication system
单模光纤极化模传输对PSK相干通信系统性能的影响 - One of the key technology in coherent optical communication system is how to restrain polarization noise of the optical system.
光学系统偏振噪声的抑制是相干光通系统中的关键技术之一。 - At the same time the space coherent optical communication system involves the atmospheric link, so it is different from the coherent optical communication system which in the fiber.
同时，空间相干光通信涉及到大气链路，受到大气信道的影响，其不同于光纤中的相干光通信系统。 - Coherent optical communication exhibits several advantages, such as long transmission distance, large system capacity and good signal quality.
相干光通信具有传输距离长、信道容量大以及信号质量好等优点。 - An automatic polarization controller technology used in the coherent optical communication system is presented in the dissertation.
论文实现了一种用于相干光通信系统的自动偏振控制技术。 - Finally, the design of coherent optical communication system has initially been established, based on this, the main parameters of coherent optical communication system were calculated and simulated.
最后在初步确立相干光通信系统设计方案的基础上，对相干光通信系统的主要参数进行了计算和仿真。 - Moreover, with the introduction of microwave subcarrier multiplexing, coherent optical communication system is able to accomodate multiple users or multiple information bit stream simultaneously.
本文经过研究及仿真发现：相干光通信系统的性能确实优于非相干光通信系统，而且，通过引入光微波副载波复用方式，可以使相干光通信系统能够同时承载多路用户或者多种信息。 - This laid the foundation for the realization of coherent communication system of high efficiency space laser communication link.
为高效率空间激光通信链路相干通信系统的实现提供了基础。 - From the results, all the algorithms proposed by this thesis have solved the above problems effectively, achieving the aim of improving the performance of co-herent optical communication system. This thesis has provided theoretical support for the design of coherent optical communication system.
从仿真结果来看，本文所给出的算法，有效地解决了上述问题，达到了改善系统性能的目的，为相干光通信系统的设计提供了参考依据。 - The multi-level modulation formats and polarization control, which are key techniques in the coherent optical communication system, relate firmly to the system performance.
作为相干光通信系统中的关键技术，调制码型技术和偏振控制技术与系统的性能密切相关。 - Generally speaking, with MPSK modulation, if the coherent detection is adopted, the channel estimation is required. However, when the channel varies too fast or there are a larger number of antennas in the communication system, the channel estimation becomes very difficult.
使用MPSK调制一般情况下需要进行相干解调，这就需要进行信道估计，然而当通信系统信道变化太快或者天线数目较多时，这种信道估计就很难实现。