地板效应

现有FMT时域信道估计算法均是有偏的，在高信噪比下会出现地板效应。

Because the existing time-domain estimation algorithms are biased , a floor effect appears when SNR is high .

通过干扰矩阵的循环镶嵌算法来消除载频间干扰，抑制系统中的地板效应。

By using the cyclic embedding algorithm of interference matrix , this scheme can directly eliminate intercarrier interference and restrain the floor effect of systems .

该接收技术可以有效去除传统的OFDM系统中的载波间干扰，消除误码的地板效应，提高了系统性能。

In this way , the ICI and " error floor " in traditional OFDM system are removed , and the performance is enhanced .

最后，通过对距离谱的分析，提出了两种改善Turbo码地板效应的方法。

Finally , from the analysis of distance spectrum , we advance two ways to improve on the " error floor " of Turbo codes .

仿真表明，所提出的算法经过两次迭代就可以消除ICI所产生的地板效应。

Simulation result shows , the proposed algorithm can eliminate the error floor caused by ICI through few times of iteration .

通过系统仿真，在AWGN信道下发现斜纹编织卷积码的系统性能与系统传输帧长和编码器个数都有很大的联系，其误码性能十分接近香农限，且没有错误地板效应。

Simulation results of WCCs with twill structure over AWGN show that the BER performance is affected greatly by the transmission frame length and the number of encoders , which also indicate that the error-correcting performance approaches Shannon limit and has no error floor .

刺激量具有不依赖刺激属性的屋顶效应及地板效应；

The numbers of stimulus had ceiling and floor effects independent of attributes ;

高信噪比时，出现严重的地板效应。

In high signal noise ratio ( SNR ) condition , severe flooring effect will appear .

该表在多个维度存在地板效应和天花板效应。

In addition , there were ceiling effects and floor effects in some dimensions of the scale .

天花板效应还是地板效应&探讨国有与非国有部门性别工资差异的分布与成因

" Glass Ceiling " or " Sticky Floor ": To Investigate the Distribution and Cause of Gender Wage Gap among State and Non-state Sector

提出的辅助判决均衡器在用于滤波多音调制系统时，可克服判决反馈均衡器在多径信道下的地板效应。

For the FMT system , a decision-aided equalizer could overcome the floor effect of the decision feedback equalizer which is caused by the multi-path channel .

给出了正交空时分组码的符号差错概率的最小距离球界，由此可以得到空时分组码关于发送天线数量的地板效应。

An estimate of the symbol error rate for orthogonal space-time block is shown and a minimum distance sphere bound of the symbol error rate is given , from which one can easily obtain the floor effect of the transmitting antenna number .

认为采用固定地板模拟地面效应与采用活动地板的模型风洞试验结果之间有很大差别，而风洞的壁面效应相比较而言可以忽略。

It is concluded that there is considerable discrepancy between the experimental results of model test in wind tunnel with the simulation of ground effects with fixed floor and moving floor , while the wall effects of wind tunnel are comparably negligible .

汽车或飞行器的地面效应研究是其设计过程中的重要环节，风洞试验地板是研究地面效应的主要装置。

Research on ground effects is a most important step in designing of the automobile or aircraft , and the wind tunnel test floor is the main device to simulate the ground effect .