码间干扰 [通信] intersymbol interference
- 短波信道中,时间色散而造成的码间干扰是短波高速数传的主要障碍。
Intersymbol interference(ISI), caused by the multipath fading of HF channel, is the main obstacle in HF high speed data transmission. - 码元约束技术是将每个偏离的星座点约束到特定区域,约束后的码元经再次调制,就大大减少了码间干扰和符号间干扰。
The code restriction technique is adopted to constrain every constellation point in the certain region, and lessen ICI or ISI through modulation. - 由于UWB主要应用在密集多径的室内环境,所以研究多径效应造成的码间干扰对于设计高速UWB 系统非常重要。
For UWB is mostly applied in dense multipath indoor circumstance the study on Inter Code Interference (ICI) caused by multipath is very importance for designing a high rate UWB system.