当信道特性为快衰落时,由多普勒频移导致的子载波间正交性遭到破坏,带来严重的子载波间干扰(ICI,Inter-Cartier Interference),降低了系统的性能。
基于11个网页-相关网页
... 当信道特性为快衰落时,由多普勒频移导致的子载波间正交性遭到破坏,带来严重的子载波间干扰(ICI,Inter-Cartier Interference),降低了系统的性能。
基于4个网页-相关网页
和子载波间干扰 Inter-Channel Interference ; ICI
将会产生子载波间干扰 ICI ; Inter-Cartier Interference
子载波间的干扰 Inter-Carrier Interference ; ICI
Frequency offset destroys the orthogonality between OFDM sub-carriers, which brings about inter-carrier interference (ICI), resulting in performance degradation.
尤其在高速移动环境下,多普勒频移和多普勒扩展明显,频率偏差使OFDM系统子载波间的正交性遭到破坏,产生子载波间干扰(ICI),这将大大降低系统性能。
参考来源 - 高速移动环境下OFDM系统关键技术的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
定时偏差会导致码间干扰,频率偏差会破坏子载波间的正交性,引起子载波间干扰,从而使系统整体性能急剧下降。
Timing offset causes inter-symbol interference, and frequency offset would destroy the orthogonality between subcarriers, causing ICI, which lead to a sharp decline in overall system performance.
大的峰值会使功率放大器饱和,在子载波间产生交调干扰和导致能量的带外弥散。
These large peaks cause saturation in power amplifiers, leading to intermodulation products among the subcarriers and disturbing out of band energy.
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。
When a synchronization error exists, the orthogonality between sub-carriers can't be maintained, serious inter-carrier interference is introduced and demodulation performance will be degraded greatly.
应用推荐