Conventional cdma ' s system always have low frequency utilization ratio which is thanks to multi - access interference . smart antenna have become one of the main ways of improving the performance of cdma ' s system because of its well noise immunity capacity 传统的cdma系统由于存在多址干扰问题,严重影响其频率利用率;智能天线技术以其良好的抗干扰性能,成为改善cdma系统功能的有利手段。
This paper analyzes the sensitivity to noise in bam bidirectional associative memory , and then proves the noise immunity of bam relates not only to the minimum absolute value of net inputs but also to the variance of weights associated with synapse connections 双向联想记忆网络的进化准松弛算法eprbam双向联想记忆网络bam因其结构简单并且具有和人脑相似的联想记忆功能而备受关注,并在模式识别领域得到了应用。
The research in this article shows that the adaptive binarization filtering algorithm for gray character image is effective ; the thinning algorithm for chinese character images and the stroke - extraction algorithm can extract hen , su , pie , na four sorts stroke from chinese character images ; eight - shape code of chinese character can effectively indicates the trait of chinese character structure . the chinese character recognition system based on eight - shape code can effectively improve noise immunity and correct rate of the system 本文研究表明,灰度文本图像二值化滤波算法有效可行;汉字细化及笔画提取算法能够提取出汉字中的横竖撇捺四种笔画;八形汉字识别码能有效的表征汉字的本质特性;基于八形汉字识别码的仿人汉字识别算法能够有效提高系统的抗干扰性和识别正确率。