DPD

本文针对并行干扰抵消检测器的不足之处，提出了改进的并行干扰抵消检测算法——基于多项式展开的并行干扰抵消多用户检测算法。该算法将多项式展开检测器作为并行干扰抵消检测器第一级的数据估计值，以提高检测可靠性。通过仿真实验，首先验证了多项式展开检测器的性能。然后比较改进算法与传统检测器的性能，验证改进算法的系统性能得到明显改善；并与并行干扰抵消检测器、解相关检测器和MMSE检测器相比较，验 证得到该改进算法的性能也有不同程度的改善。 (this paper discusses the principle and performance of the conventional detector and the parallel interference cancellation(PIC)detector separately.Since the conventional detector take MAI only as the background noise without considering the existence of the other users,the existence of MAI has a significant impact on the performance of CDMA systems.Each stage of PIC detector utilizes the data estimates of the initial or previous stage,produces a new set of MAI estimates,and then subtracts out all of the MAI for each user in parallel.Through Monte Carlo simulation in different scenarios,the results illustrate the influence of MAI in conventional CDMA ystems.Theexperimental results show PIC detector can effectively eliminate MAI andimprove the system BER. )

Detailednetworkport，网络端口详解，对初学者有很大的帮助(Detailednetworkport, detailed port of great help for beginners)

很好的spss教程 轻松使用spss 方差分析 因子分析 回归分析(failed to translate)

说明：  calculate the result, more execises and more experience.

Fundamental of Power Electronics，Robert W. Erickson. 有目录，文字版，图片为扫描的.(Fundamental of Power Electronics,Robert W. Erickson, Second ed)

ansys模拟桥梁受力分析，在桥上有车行驶过时计算出桥梁不同部位受力状况及挠度变化值。(ansys stress analysis simulation bridge, a car traveling on the bridge obsolete bridges in different parts of the calculated force status and changes in the value of deflection.)

电子设计书籍,此书主要介绍汽车电子，工业控制，医疗电子和小有电的开发(design)

C++/C编程指南丛书---高质量编程 看过后大受启发 (C++/C Programming Guide--- Series of high-quality programming large inspired after reading)

The silde introduces about digital filter bank- an important concept in contemporary communication. Also, concept of L-band filters or Nyqist filter is introduced here.

说明：  python编程约40例，有词频统计、读写文件、有网络爬虫、绘制图像等例程(Python programming about 40 examples, including word frequency statistics, reading and writing files, network crawlers, drawing images and other routines)