OFDM

是关于ofdm仿真系统的源代码 放心下载 验证正确(Is a simulation system on the source code for ofdm)

这是一份很优秀的FFT学习资料，对于想了解FFT的，可以很容易实现。(This is a very good learning materials FFT, FFT for those who want to understand, and can be very easy to implement.)

this matlab code about 64 point fft.

This tutorial white-paper illustrates practical aspects of FIR filter design and fixed-point implementation along with the algorithms available in the Filter Design Toolbox and the Signal Processing Toolbox for this purpose. The emphasis is mostly on lowpass filters, but many of the results apply to other filter types as well. The tutorial focuses on practical aspects of filter design and implementation, and on the advantages and disadvantages of the different design algorithms. The theory behind the design algorithms is avoided except when needed to motivate them.

说明：  实现水声通信传输损耗的功能，传输损耗与频率的关系(Acoustic communication to achieve the function of transmission loss, transmission loss and frequency of the relationship between the)

采用harry算法实现对凹点的搜索，基于matlab平台，通过更改参数可以实现凹点搜索的精度(Harry algorithm using concave point of the search, based on matlab platform, can be achieved by changing the parameters of precision concave point search)

模拟信号采样周期，若频率符合要求，则输出波形与原波形一致(Analog signal sampling period, if the frequency to meet the requirements, the output waveform consistent with the original waveform)

this source code is useful to do cdma simulation in awgn channel..

OFDM正交多载波传输技术具有抗无线传输多径效应影响的能力，正逐步成为各种宽带无线数字传输系统(OFDM Orthogonal multi-carrier transmission technology with anti-multipath effects of wireless transmission capacity, is becoming a variety of broadband wireless digital transmission system)

PCA和KPCA，对于故障检测与诊断有很好的监控效果，希望对你有用(PCA and KPCA, for fault detection and diagnosis have a good monitoring of effects to be useful to you)