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- external modulation technology 外调制技术
- The zero-cross modulation technology uses exsisting power distribution network as transmition carrier. 过零调制技术完全利用现有电力网络为传输载体,无需额外增加系统设备,成本低廉。
- In addition, the automatic gain control circuit and accessional phase modulation circuit are designed in order to control light power on the stage of external modulation. 另外设计了自动增益控制电路和附加相位调制电路,对外调制阶段的光功率进行控制。
- The paper introduces the composition, working principle, FSK modulation technology of Model ZJF 1 Power Cable Carrier Equipment and application of PLD. 介绍了ZJF-1型动力电缆载波设备的组成、工作原理、FSK调制技术及PLD器件的应用等。
- All kinds of circuit topology and power modulation technology for variable speed constant frequency(VSCF)wind power generator system are introduced. 简单介绍了变速恒频风力发电系统中出现的一些常用拓扑结构及功率调节技术。
- Since outputs of the master laser are antiphase for direct modulation and external modulation, the fluctuations of similarity index with modulation frequency for the two lasers are contrary. 由于内部、外部调制引起主激光器的输出反相,两种调制方式下同步品质随调制频率的变化趋势也相反。
- These new type Digital PLC use SSB, QAM or TCM modulation technology and occupy the bandwidth between several kHz to dozens of kHz with the transmission speed less than 100kbps. 新型数字载波机使用的调制技术有SSB,QAM和TCM等,占用带宽为几kHz到几十kHz,数据传输率最高不超过100kbps。
- By using the frequency and speed modulation technology,the electricity consumed will vary with the amount of the wind,thus a remarkable energy-saving result is achieved. 变频调速技术通过改变电动机工作电源频率调节电机转速,消耗的电能随风量大小而变,具有显著的节能效果。
- A novel scheme for optical millimeter-wave generation with double-sideband (DSB) modulation by external modulator in a radio-over-fiber (ROF) system was proposed. 提出了应用于光纤无线通信系统中一种改进的双边带调制产生光毫米波方案。
- This paper briefly discusses the newest pratical technology including modulation technology, narrow spectral linewidth laser, LD frequency stabilization technology, Polarization control technology and so on. 本文简要论述了相干光通信的最新实用化技术,包括调制技术,窄谱线光源,ld稳频技术,偏振控制技术。
- Right now Psyco is an external module, but it could someday be included in Python itself. Psyco现在是个外部模块,但是在将来的某一天它可能会包括到Python本身中去。
- On larger scripts that "stand alone" without a lot of external module use, you should see a noticeable improvement. 在大型的没有使用外部模块的“独立”脚本中,您应该会看到速度有明显的提升。
- Digital AM System is a more advanced modulation technology currently in the world,also the electroacoustic index and industrial efficiency of all solid state digital AM MW transmitter DX series. 数字调幅制式是当前国际上较先进的调制技术,DX系列全固态数字调幅中波发射机的电声指标和工业效率都是很先进的。
- The foundation is given to design the good external modulator optical transmitter by calculating CSO. 为设计性能良好的外调制光发射机 提供了依据。
- To solve the problem of sky-high modulation frequency requirement in MOG (Micro-Optical Gyroscope), a new double-frequency modulation technology based on triangular wave was proposed. 对微光学陀螺双频率调制中需要极高调制频率差的问题,提出了一种基于三角波的双频率调制技术。
- OFDM(Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission. 正交频分复用(OFDM)是一种新型调制技术,特别适合在多径传播的无线移动信道中高速传输数据。
- The signal quality of these two signals under the transmission through the external modulated lightwave are hence studied using the proposed theory. 输入至电光调变器时,这两种型式的电场讯号经过电光调变器的光波传输后,可以使用本论文所提出的理论来研究其讯号的品质。
- From the view of external modulation by using the method of ratio of small earthquakes modulated by solid tide, we quantitatively analysed the small earthquake activities in Urumqi and Alma Ata. 利用固体潮小震调制比方法,从外因调制的角度出发,定量研究新疆乌鲁木齐和苏联阿拉木图地区小震活动。
- Identical epitaxial External modulation 外调制
- Pdf- Three structures and the module technology realize the staff data management system pdf. 三层结构及组件技术实现员工数据管理系统。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries