this thesis lays a strong emphasis on principal components analysis ( pca ) and lm algorithm in artificial neural networks to complete the prediction of ncrna, which is based on data mining 论文的重点是运用数据挖掘方法中的主成分分析和人工神经网络lm(levenberg-marquardt)算法实现了ncrna的预测。
in chapter four afc scheme combined with adaptive array is presented, and a method that utilizing the frequence tracking performance of lms algorithm in baseband achieving afc directly is proposed 第四章提出了空域自适应阵中实现afc的方法,并提出了利用lms算法在基带所具有的频率跟踪性能直接实现afc的方法。
due to the convergent speed and steady-state error are affected by the fixed stepsize and can not be improved simultaneously in classical lms algorithm, this paper presents an improved algorithm of lms 针对传统的lms(leastmeansquare)算法中,固定步长选取影响收敛速度与稳态误差的这一对矛盾,提出了一种改进的lms算法。
a practicable equalizer is brought forward definitely which has dfe structure and mixed qr _ rls / lms algorithm . then, the equalization project applied to the 45m high-speed wireless communication system is put forward 通过不同均衡算法在具有多径干扰的qpsk调制解调系统中的仿真,确定出适用的算法:dfe结构的混合型qr_rls/lms算法。
adaptive antenna array technology based on lms ( least mean square ) algorithm is discussed . and lms algorithm based on floating point format in implemented successfully using the high-performance structure and the new floating point format 阐述了基于lms算法的自适应天线阵技术,基于论文提出的高效结构及浮点格式在fpga上成功实现了浮点lms算法。