Big estimation

大估───Big estimation

analyzing the effect of channel estimation error on the detectors, it is found that the multiuser detector is more sensitive to big estimation error than the single user detector.───分析了信道估计错误对检测器的影响，发现对于较大的信道估计错误，多用户检测器比单用户检测器更敏感。

The three-step search method is a commonly used fast motion estimation algorithm, but its initial step length is too big, thus the estimation effect of slow motion sequence is not so satisfactory.───三步搜索法是一种常用的快速运动估计算法，但由于它的初始步长太大而导致对缓慢运动序列的估计效果不能令人满意。

When attending grand activities, many brands have a big problem on manufacturing capability and estimation, which is the reason causing more bidding, less manufacturing.───估不足是很多品牌在参与重大活动的一大弊病，这也是造成竞标热、生产冷的原因所在。