载波间干扰 meaning in English
ici inter-carrier interference
inter-carrier interference (ici)
Examples
- A frequency domain ici mathematic model for ofdm systems
载波间干扰的频域数学模型 - 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 - 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。 - 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。 - 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。