信道状态信息 meaning in Chinese
csi channel state information
Examples
- Two sova decoding algorithms in ofdm system based on bpsk modulation with fading channel were presented . one is called bce _ sova , which is based on adaptive blind channel recognization . it can adaptively estimate the channel state information ( csi )
其中一种是基于自适应盲信道识别算法的sova译码算法(简称bce _ sova ) ，该算法可以自适应地估计信道状态信息( channelstateinformation ， csi ) ，由于不用训练，传输时延小，但计算复杂度高。 - Compared with other space - time coding technologies , it can obtain well performance without perfect channel state information ( csi ) . in this dissertation , we look forward to improve the performance of the differential space - time system by concatenating it with an outer code and using iterative soft - decision decoding algorithm
差分空时码是一种适合未来3g 4g快变衰落信道的空时编码技术，与一般的空时码不同的是，它的译码不需要信道状态信息，但仍能保持良好的译码性能。 - This scheme firstly determined the operating mode of coded video stream in nal layer according to the current channel state before they were packed . the coded video stream operated under ssm in error - free channel so as to reduce the packing tradeoff and increase the coding efficiency . while in error - prone channel , they operated under dpm combined with improved unequal error protection ( uep ) scheme based on human eyes characteristic in order to elevate their robustness to channel error
该方案中编码视频信息在进行打包封装前，首先根据当前信道状态信息自适应地确定其在nal层中的工作模式，在无丢包信道中采用单数据片模式以降低编码视频流的打包开销，提高编码效率；而在丢包信道中采用数据分区模式以提高编码视频流对信道误码的鲁棒性能，同时基于人眼视觉特性，提出了一种改进的uep策略。