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正交频分复用（OFDM）是一种特殊的多载波传输技术。它可以有效地对抗多径衰落，能够以很高的频谱利用率来实现高速数据传输。分析介绍了OFDM系统的基本原理及系统性能，以Matlab为开发平台，仿真了OFDM系统的误码率，仿真结果表明OFDM系统在较低信噪比下也具有较好的性能(Orthogonal Frequency-division Multiplexing（OFDM） is a special kind of multi-cartier transmission technology. It can effectively overcome multi-path fading and increase the spectral usage efficiency to implement high-speed data transmission. This paper analyzes the basic principle of OFDM system and system performance, and simulates the Bit Error Rate （BER） of OFDM system on the platform of Matlab. The simulation results show that the OFDM has a good performance.[)

Business Intelligence Certification Guide

IEEE致力于电气、电子、计算机工程和与科学有关的领域的开发和研究，该程序为IEEE30节点潮流计算,电压初值计算，(IEEE is committed to electrical, electronics, computer engineering and science-related fields of development and research, the program flow calculation for the IEEE30 bus voltage initial calculations,)

基于GM 模型和Hilbert 空间填充曲线的图象压缩方法(Image Compression Method Based on GM and the Hilbert space filling curve)

带有版本控制的软件发布升级工具。 带有版本控制的软件发布升级工具。 带有版本控制的软件发布升级工具。 (version control for your software.and aid for your upgrade.version control for your software.and aid for your upgrade.version control for your software.and aid for your upgrade.)

Dear Sir, I have uploaded some neural network and DSP kind of programms. Thank You, -bibyut

供初学者学习用的matlab基本编程源码(for beginners learning the basic Matlab programming FOSS)

【matlab编程代做】使用两个图像输入模糊C+-均值图像分割([Do] matlab program generation using two image input fuzzy C+- Mean image segmentation)

LFM的信号的产生，性能分析和模糊函数，LFM信号接收的匹配滤波器输出(LFM signal generation, performance analysis and fuzzy functions, LFM matched filter output of the received signal)

说明：  预测未来几年的人口，采用逻辑回归模型预测，用的数据是87-20年的数据(Forecasting the population of the next few years)