mtest_new5_simple1

it use pc com port to receive and show over gui

本程序中得到的收端OFDM信号的频谱波形，是与其发端信号的排步有关的。在发端的 ％ 载波安排上，128个载波有前后各32个载波是null载波(如果这前后各32各载波是带外频段， ％ 那么理论上它们都应该是零！)，中间的64个载波是数据载波。这样的排步很明显就是一个 ％ 两边低，中间高的频谱形式。所以，收端也应该是这个轮廓。 (this process the resumption end of the spectrum OFDM signal waveform, with the originator of the signal further on the row. The originator% carrier arrangements, 128 of the carrier after a 32 carrier is null carrier (if it was around the 32 is the carrier frequency band. % then theoretically they should be zero!) the middle 64 carrier data carrier. This arrangement is obviously further 1% lower on both sides, in the middle of the spectrum form high. Therefore, the admission should end this profile.)

this file is about risk managment in marketing....

计算转子各阶临界转速。考虑了陀螺力矩。用FEM法。(Calculation of the rotor of the first critical speed. Consider the gyroscopic moment. With the FEM method.)

很好的书籍,对从事IT的人,都会有帮助.(a good book guide you to the gate of IT)

一种不同信噪比噪声的添加方法，包括复噪声和实噪声，()

说明：  很有 用的LDPC译码程序，大家可以看看,很有借鉴作用(ldpc decoder)

该程序可以通过求解指纹的点分布图和块分布图达到指纹识别的目的。(The program can be obtained by solving the point of the fingerprint maps and block maps to the purpose of fingerprint identification.)

energy detection in cog radiio

基于matlab利用一维FDTD方法对电磁波传播及反射透射进行仿真(Based on matlab using one-dimensional FDTD method and the reflection and transmission of electromagnetic wave propagation simulation)