English translation for "频谱扩展"
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- spectrum spread
Related Translations:
连续频谱: continuous frequency spectrumcontinuous spectrum 频谱实验室: radio frequency lab radio spectrum lab 地震频谱: earthquake spectrum 频谱节约: spectrum conservationspectrum economyspectrum saving 射频频谱: radio frequency spectrumradio spectrumradio-spectrumradiofrequency spectrum
- Example Sentences:
| 1. | Short message services for spread spectrum systems
频谱扩展系统短信服务 | | 2. | Over the air service provisioning of mobile stations in spread spectrum systems
频谱扩展系统中移动站的空中服务保障 | | 3. | High rate speech service option 17 for widebande spread spectrum communications systems
宽带频谱扩展通信系统用高速语音服务选择17 | | 4. | Enhanced variable rate codec speech service option 3 for wideband spread spectrum digital systems
宽带频谱扩展数字系统用增强的可变率编译码器语音服务选择3 | | 5. | Evrc 3 software distribution for tia - 127 - a - enhanced variable rate codec speech service option 3 for wideband spread spectrum digital systems
Tia - 127 - a的软件配置.宽带频谱扩展数字系统用增强的可变率编译码器 | | 6. | A tdrss user transponder is a terminal of the user satellite in this system , in which qpsk or sqpsk modulation and direct sequence spread spectrum ( ds - ss ) are employed in the forward / backward links
Tdrss用户应答机是该系统的用户终端，其正反向链路的信号通常采用qpsk或sqpsk调制和直接序列频谱扩展。 | | 7. | When signals pass high power amplifier , they would be distorted in amplitude and phase , leading to spectrum spread and distortion of in - band signals , both of which would weaken performance of the whole system in turn
在无线通信中,信号在通过高功率放大器时会产生幅度和相位失真,造成频谱扩展以及带内信号畸变,导致整个系统性能的降低。 | | 8. | With dispersion , xpm can induce intensity fluctuations and timing jitter of the pulses in the receiver . it can also cause the spectral spreading of the channel so that crosstalk is introduced . all these effects put a tight limit on the capacity of the systems
它与色散共同作用，会导致接收端光脉冲的变形（强度起伏） 、光脉冲的时间抖动以及信道的频谱扩展，这些后果都会限制系统的性能。 | | 9. | Multicarrier wireless communications have been widely investigated in the past decades . recently , two - dimensional spread spectrum ( 2d - ss ) system has drawn a lot of attention because of its full utilization of spreading characteristics in the frequency domain and time domain . compared with multicarrier code division multiplex access ( mc - cdma ) , 2d - ss system can effectively mitigate multiple access interference ( mai ) due to spreading in the time domain
当前多载波无线通信技术得到了广泛的研究,二维扩频通信系统是近年来提出的新的扩频通信方式,由于二维扩频系统从时域和频域上分别对数据信号进行频谱扩展,因此它同时具有时域扩频和频率扩频通信系统的特点,是对传统的一维时域直接序列扩频和多载波扩频的推广。 | | 10. | By theory and practice simulation , the several types of constant envelope modulation techniques are analyzed and compared , including theirs modulation principle , phase path , the modulated wave envelope , power spectrums , error bit rate and the influence of its power spectrums of the band - limited and non - linear , etc . especially we have researched the ijf - oqpsk modulation technique , and the performance of its inter - symbol interference and time jitter free , and its strongly resisting of spectral spreading
结合理论和实验仿真结果，分析讨论了卫星通信中的各种恒包络调制技术，对它们的调制原理，相位路径，已调波包络，功率谱密度，误码性能，以及带限非线性信道对其功率谱的影响等方面都作了研究和比较。特别研究了ijf ? oqpsk在消除码间干扰和定时抖动方面的性能及其优良的旁瓣特性和抑制频谱扩展特性。 |
- Similar Words：
- "频谱矩阵" English translation, "频谱控制" English translation, "频谱控制设备公司" English translation, "频谱宽度" English translation, "频谱扩散" English translation, "频谱扩展码序列" English translation, "频谱扩展因数" English translation, "频谱利用" English translation, "频谱利用率" English translation, "频谱利用特性" English translation
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