信息增益率，是一种增益率，数学名词。
最后基于信息增益特征选择进行实验，使实验复杂度降低，时间缩短，识别率提高。
The result achieved is that the complexity has been reduced, time consumed has been shortened and the accuracy of the identification has been obviously improved.
本文将方位角变化率测量信息也引入该定位问题，提出了基于MGEKF（修正增益扩展卡尔曼滤波），对三维运动辐射源的无源定位跟踪算法。
In this paper, the azimuth angle changing rate measurement is introduced into this passive location problem and a location algorithm for 3-D moving emitters based on MGEKF is given.
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