通信类论文专业翻译

通信类论文专业翻译

蓝牙技术允许信息存储在手机上可以显示在电视上，也可以变换分析的信息，以便在电脑上听声。

蓝牙技术的传输速率设计到1MHz。实现全双工通信的时间的协议是区为基础的电路交换和分组交换的组合。

通过无线芯片接收器与蓝牙技术的电子产品能够在十公尺，可连接传输速度可以达到每秒1万亿字节。

蓝牙技术是一种新的无线传输，在1998年推出。它实际上取代数据电缆的短距离无线通信技术，通过实现低带宽的点至点广播，或点对多点链路之间的信息交流。

点，以点传输，无线红外传输是一种，它是必要的，在准确的方向，而不是很远的地方。如果在中间有障碍物时，它不能穿过墙壁，且无法控制信息传输的速度。

通信工程专业 翻译为英语怎么说

通信工程的英文为Telecommunications engineering, or telecom engineering。

telecommunications

英[ˌtelikəˌmju:nɪˈkeɪʃnz]

美[ˌtelikəˌmjuːnɪˈkeɪʃnz]

telecom

英['telɪkɒm]    美['telɪkɒm]

engineering

英[ˌendʒɪˈnɪərɪŋ]    美[ˌendʒɪˈnɪrɪŋ]

扩展资料

通信工程（也作电信工程，旧称远距离通信工程、弱电工程）是电子工程的一个重要分支，电子信息类子专业，同时也是其中一个基础学科。该学科关注的是通信过程中的信息传输和信号处理的原理和应用。本专业学习通信技术、通信系统和通信网等方面的知识，能在通信领域中从事研究、设计、制造、运营及在国民经济各部门和国防工业中从事开发、应用通信技术与设备。

该学科是信息科学技术发展迅速并极具活力的一个领域，尤其是数字移动通信、光纤通信、Internet网络通信使人们在传递信息和获得信息方面达到了前所未有的便捷程度。

通信工程具有极广阔的发展前景，也是人才严重短缺的专业之一。本专业学习通信技术、通信系统和通信网等方面的知识，能在通信领域中从事研究、设计、制造、运营及在国民经济各部门和国防工业中从事开发、应用通信技术与设备。通信工程研究的是以电磁波、声波或光波的形式把信息通过电脉冲，从发送端（信源）传输到一个或多个接受端（信宿）。

参考资料 百度百科-通信工程

高分悬赏 关于通信方面论文摘要的翻译

　　Abstract: Since wide frequency correspondence concept starts maturely after the 50s, hereafter more than 20 year wide frequency communication still obtained the very big development, but is only the partial development, like hardware's improvement and application domain development. yizhi dao the early 80s, the wide frequency correspondence's concept was only obtains the application in the military channels, this kind of condition to only then obtained the change in the mid-80s. The spread spectrum technology develops the present, the CDMA technology becomes in the present spread spectrum technology to study most objects, the civil correspondence's direct sequence spread spectrum technology applies widely. the m sequence, the Gold code, the WalSh code and the OVSF code are in the wide frequency communications system the commonly used several kind of wide frequency sequence, the Walsh code use in the edma2000 system, but the OVSF code is the use in W-CDMA and in the TD-SCDMA system. but in the 3G mainstream standard, China proposed the TD-SCDMA standard has the huge domestic market. And, the TD-SCDMA wide frequency communications system has strong anti-characteristics and so on jamming, mitigation disturbance, anti-multi-diameter disturbance ability and information hiding, multiple access privacy communication. Present paper's goal is makes the wide frequency sequence by the OVSF code to realize one based on the MATLAB TD-SCDMA direct sequence spread spectrum communications system wide frequency part. This goal realizes involves the wide frequency communications system's related knowledge, the key point is the OVSF code generator, harasses the code generator as well as the root rises the cosine to roll falls filter's realization. the present paper has completed the following prime task:
　　①Data Canada harasses as well as the string/and transforms this design uses Xie Raoshi does not need complex synchronized self-synchronizing Canada to harass the technology, the scrambler by the fifth-order linear feedback shift register constitution. Carries on the string the data signal and transforms.
　　②Differential coding the differential coding causes the PSK signal to turn the DPSK signal, overcomes “the phase ambiguity” the question. The differential coding plan is decided in the modulation system is BPSK or QPSK. When selects the BPSK method, the code operation is quite simple: Outputs bit(k) by to input bit(k) different or outputs bit (k l) to obtain; When selects the QpSK method, because four kind of possibility's preceding output states and four kind of possibility's current input state may determine 16 kind of output states, therefore the difference interpretative version compared to uses BPSK complex many.
　　③The frequency spectrum expansion as well as the pulse take shape this design to select the autocorrelation characteristic very good OVSF code achievement wide frequency code, carries on mold two Canada after the OVSF code and the code output data to realize the wide frequency modulation. To suit the request which transmits in the channel, after needs to undergo the wave shaping, reduces the frequency band, reduces the intersymbol interference, simultaneously causes the signal energy to be more centralized, enhancement signal-to-noise ratio. This design uses one to roll step-down ratio a=0.22 the root to rise the cosine FIR digit filter to complete the I/Q road signal the formation, escorts to the exterior modulator after the formation I/Q road data as the baseband processor transmitting end's output data to carry on the next step processing.
　　④TD-SCDMA direct sequence spread spectrum communications system wide frequency part's system simulation compiles TD-SCDMA the direct sequence spread spectrum communications system wide frequency part the MATLAB procedure, and carries on the MATLAB simulation, obtains the TD-SCDMA direct sequence spread spectrum communications system wide frequency part simulation profile and a=0.22 root rises the cosine to roll falls filter's phase response and the frequency response simulation profile, has carried on the corresponding simulation analysis to the simulation profile. key word: OVSF; Direct sequence spread spectrum; TD-SCDMA; MATLAB