deep space communication
英 [diːp speɪs kəˌmjuːnɪˈkeɪʃn]
美 [diːp speɪs kəˌmjuːnɪˈkeɪʃn]
网络 深空通信
双语例句
- Existing GEO ground antenna's can meet the requirements of the deep space communication missions.
采用现有的GEO地面天线完全能够满足深空通信的要求，提高了系统的可靠性。 - Feher patented Quadrature Phase Shift Keying ( FQPSK), which is suitable for deep space communication, is introduced at first.
首先介绍了适用于深空通信的费赫尔正交移相键控（FQPSK）调制技术。 - After deep research on DTN architectures, the application of DTN for deep space communication is introduced in detail.
深入剖析了DTN体系结构，并从研究和项目两个层面详细介绍了深空通信DTN研究进展； - Research and Realization of Hardware Platform for Deep Space Communication Simulation System
深空通信仿真系统硬件平台研究与实现 - Modulation and Channel Model Simulation in Deep Space Communication System
深空通信系统中的调制技术与信道模型仿真研究 - Study on image compression methods in deep space communication
应用于深空通信中的图像编码方法的研究 - Turbo Channel Encoding and Decoding Technologies for Deep Space Communication
深空通信中Turbo码的编译码技术 - This paper focuses on the theory of turbo code and its application in deep space communication.
本文主要讨论了Turbo编译码的原理及其在深空通信中的应用。 - Research on Combination Modulation and Demodulation Technology in Deep Space Communication
深空通信中组合调制解调技术的研究 - Turbo code also has better capability in resisting attenuation and disturbance, so it has great potential applications in deep space communication with bad channel condition.
Turbo码还具有很强的抗衰弱、抗干扰能力，这使得Turbo码在信道条件较差的深空通信中有很大的应用潜力。 - Special demand of image compression using for deep space communication is preliminarily studied. It is based on analysis of the principle of CCSDS image compression recommendation on DWT, the coding and decoding methods, the implementation and resulting performance.
通过分析一种CCSDS建议的基于小波变换的图像数据压缩的基本原理、编解码方法、系统实现和压缩性能，初步研究深空通信对于图像压缩的特殊要求。 - Meanwhile, modulation schemes for deep space communication are provided based on channel features and requirements on data transmission rates.
同时，根据信道特点和数据传输速率的要求给出了深空通信的调制方式。 - The results showed that rUDP protocol ensured the reliability of data transmission and greatly reduced transmission time in the deep space communication that was full of long delay and high rate of error. The improved protocol provided a certain reference for its application.
结果表明在大时延、高误码率的深空通信中，rUDP协议保证数据可靠传输，而且大大缩短文件传输的时延，对其应用提供了一定的参考价值。 - First, the characteristic and several critical techniques such as image source encoding, channel error-correcting coding, modulation& demodulation and communication network in deep space communication are presented.
首先介绍了深空通信的特点以及若干关键技术，着重介绍了图像信源编码，信道纠错编码，调制解调以及通信网络等技术。 - As an important technology of deep space communication, channel coding can improve the performance of the system greatly.
作为深空测控通信中的一种重要技术，信道编码技术能够大幅度地提高深空测控通信系统性能。 - Therefore, based on the characteristics of the earth and the explored planets and the future development trend of deep space communication, the triple hops relay downlink was established, and analyzed distance and carrier frequency of each hop according to the influence of downlink loss.
因此，根据地球以及被探测行星的特性以及未来深空通信发展的趋势，建立三跳中继下行链路，分析了每跳的距离以及载波频率的选择对链路信噪比的影响。 - Nowadays, turbo codes is widely used in mobile communication, broadband access, satellite communication and deep space communication. Meanwhile, turbo iterative principle is applied to the field of channel estimation, iterative equalization and multiuser detection.
如今，Turbo码已广泛应用于移动通信、宽带接入、卫星通信和深空通信等领域；同时，Turbo迭代原理也应用在了信道估计、迭代均衡和多用户检测等方面。 - The design and realization of hardware platform for deep space communication simulation are researched in this paper.
本文主要研究了深空通信仿真系统硬件平台的设计与实现。 - The power-and-bandwidth-efficient modulations were developing in the deep space communication system for the long communicate distance and the increase telemetry.
深空通信因其传送信号距离遥远且随着通信量的日益增大，促使着高带宽效率和高功率效率的调制技术的发展。 - Deep space exploration means to the exploration of the moon or space and celestial bodies beyond the moon. The system which actualizes tracking, telemetry and command on the spaceflights is called deep space communication system.
深空探测是指对月球和比月球更远的天体和空间进行的探测，对实施深空探测的航天器进行测控通信的系统称为深空测控通信系统。 - The basic characteristics of deep space communication are long distance, long delay, links easily interrupted, great error rate and packet loss, asymmetric bandwidth between uplink and downlink, high-frequency and abundant frequency band resources.
深空通信的基本特点是距离远、时延大、链路易中断、丢包率大、上下行链路带宽不对称、工作频率高和频带资源丰富等。 - As one kind of the wireless communication channel, deep space communication channel has some other special characteristics besides the characteristics in common to wireless communication channel.
深空通信信道作为无线信道的一种，除了具有一般无线信道的共性外，还具有一些特殊的性质。 - This simulation system of the wireless channel is not only good for the construction of the integrated simulation system of the deep space communication, but also the foundation of the further research of the deep space communication.
该信道仿真系统为深空通信综合仿真平台的搭建和深空通信的进一步研究打下了基础。 - Results of the study for Fountain Codes are offering a few coding schemes in Deep Space Communication.
本论文的研究成果在于为喷泉码在深空通信中的应用提供了一些性能优良的编码方案和建议。 - The systems of deep space communication, satellite communication and mobile communication have the characters of far communication distance and large energy attenuation, and how to save signal power and improve bandwidth efficiency become an important problem.
深空通信、卫星通信、移动通信等系统具有通信距离远，能量衰减大的特点，如何既节省信号的功率，又兼顾或提高频带利用率成为研究中的一个重要问题。 - Due to the long distance and great signal loss between signals of deep space communication channel, it is necessary to increase the channel gain and receiver sensitivity of the system.
深空通信信道中各信号间的传输距离非常远，能量衰减严重，所以必须努力提高系统的信道增益和接收机的灵敏度。 - The design can be applied to deep space communication system, ground receiving system and integrated testing system.
技术实现可应用于深空通信系统、地面接收系统以及综合测试系统。 - Thirdly, a variable parameter adding white gauss noise channel model is proposed and also achieved by C language according to the characteristics of the deep space communication channel.
然后依据深空通信信道特点提出了适合深空通信的变参数高斯白噪声信道模型，并用C语言实现了该模型。 - As a high-gain channel coding technology, low density parity check ( LDPC) codes have many advantages, so there are broad prospects to be used in fields of deep space communication.
作为一种高增益的信道编码技术，低密度奇偶校验（LDPC）码具有诸多优点，在深空通信领域具有广阔的应用前景。 - These characteristics determine deep space communication has become a difficulty in deep space exploration.
这些特点决定了深空通信是深空探测的一个难点问题。