English translation for "载波间干扰"
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- ici inter-carrier interference
inter-carrier interference (ici)
Related Translations:
载波振荡: carrier oscillation 载波压缩: carrier compression 载波间隔: carrier separationcarrier spacingintercarrier distance
- Example Sentences:
| 1. | A frequency domain ici mathematic model for ofdm systems
载波间干扰的频域数学模型 | | 2. | Iterative inter - carrier interference cancellation in ofdm systems
正交频分复用子载波间干扰抵消的迭代算法 | | 3. | When a synchronization error exists , the orthogonality between sub - carriers ca n ' t be maintained , serious inter - carrier interference is introduced and demodulation performance will be degraded greatly
当存在同步错误时，子载波之间的正交性遭到破坏，从而引起严重的载波间干扰，使解调性能大大下降。 | | 4. | That is by inserting known symbols or pilots in time and frequency domain to estimate the channel frequency response . the proposed method employs iterative low - pass filtering in transform domain which can reduce additive white gaussian noise and inter - carrier interference effectively
该估计算法采用在变换域多次迭代滤波的方式,能够显著降低高斯噪声和载波间干扰( ici )对估计性能的影响,同时快速fft算法也使得变换域滤波变得比较简便。 | | 5. | To overcome the affection of ici and awgn on the ls estimate of the transfer function at pilot tones , the proposed bispectrum - based channel estimation algorithm employ the suppression of ici and awgn components in the received pilot signals by bispectrum and then the accuracy of the estimation is improved . with the channel estimation at pilot tones , an efficient interpolation is necessary . an improved interpolation method based on transform - domain filtering is proposed , which employs dft / idft and filtering in a transform domain so that the effect of noise on the equalization is significantly reduced
针对导频处信道传递函数的ls估计中存在载波间干扰和加性高斯白噪声的影响的这一问题，本文将传统的ls估计方法与双谱相结合提出了一种新型的基于导频双谱信道估计算法，它利用了双谱对高斯噪声的抑制作用来减小接收到的导频信号中的载波间干扰和加性高斯白噪声的影响，从而提高了导频子载波上信道估计的精度。 | | 6. | Firstly , in wireless environment , receiver has no know the time delay between transmitter and itself . in ofdm system , ofdm data is transmitted as one symbol , so in order for correct demodulation , the correct start of symbol should be got from ofdm system to reduce the effect of isi . secondly , the high frequency utilization in ofdm is based on the orthogonal properties of sub carriers . if frequency offset is generated , the orthogonal properties among sub carriers will lost , that will cause inter carrier interference ( ici ) and high ber of system
Ofdm技术也存在着一些缺陷,首先,在无线环境中传输的ofdm信号对定时要求高,为了减少码间串扰( isi )影响,必须从接收信号中提取出正确的符号起始位;其次, ofdm系统对频率偏移敏感, ofdm技术的高频谱利用率和传输可靠性均以子载波的正交性为基础,如果接收机和发射机之间发生频率偏移,子载波之间就会失去正交性,导致严重的子载波间干扰( ici ) ,降低系统性能。 |
- Similar Words：
- "载波监听" English translation, "载波监听多路访问" English translation, "载波监听多址访问" English translation, "载波间差拍" English translation, "载波间蜂音" English translation, "载波间隔" English translation, "载波间间隔" English translation, "载波间接口" English translation, "载波间接口协议" English translation, "载波间距；载体间距" English translation
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