谱平均 meaning in English

spectrum averaging

Radar target recognition by a logarithm bispectrum - based method is simulated and studied . it is discovered that the more test samples that generate the subrangeprofile of logarithm of averaged bispectrum are , the higher recognition rate is . and using phase information is a key to obtaining high recognition rate . all of these methods are proved by experiments on simulated data and real data of planes
4 、对基于对数双谱特征的目标识别法进行仿真实验,研究了该算法的识别性能和用于求双谱平均对数子像的测试样本数之间的关系,该测试样本数越多识别率越高,同时研究表明利用相位信息是该算法得到较高识别率的关键。