treewave

steffenson迭代法Matlab源码(Matlab source steffenson iterative method)

matlab函数实现任意位置平行线圈的互感值计算(matlab function anywhere in parallel to achieve the mutual inductance value of the coil)

Principal component analysis for a voice signal

说明：  使用matlab调用refprop，计算各种制冷剂工质的物性数据(refprop used in matlab)

stbc在2发2收，4发4收的性能仿真 一个编码译码程序。 有仿真结果图。(stbc made two in 2 admission, made 4 of 4 admission a performance simulation code decoding procedures. A Simulation results.)

仍然是卷积码的代码，是matlab的，最近写这方面的论文，找了很多(Convolutional code is still code, is matlab, recently wrote this paper to find a lot of)

说明：  使用遗传算法对解决方案进行优化 0-1背包问题（GA）(Using Genetic Algorithm to Solve 0-1 Knapsack Problem (GA))

关于PCA算法的调用程序，傻瓜式操作，直接运行，附带样本数据文档，很好的帮助初学者。 一看就懂！可以任意更改样本！(Calls on the PCA algorithm procedure, Fool operation, direct running, with sample data files, a good help for beginners. Understand at a glance! Samples can be changed!)

说明：  通信系统仿真,QPSK调制与解调,主要针对差分解调方式,对于matlab初学者以及做通信仿真的人员有很好的参考价值(communications system simulation, QPSK modulation and demodulation, the main differential demodulator, for beginners and Matlab done Communication Simulation of a very good reference value)

说明：  常规的单载波调制技术在带宽有限的测井电缆上的低传输速率制约着成像测井技术的发展。在分析测井 电缆传输特性和 OFDM 技术原理的基础上 ,设计了一种基于 OFDM 技术的测井电缆高速数据传输系统 ,并介绍了 基于 OFDM 技术的测井电缆高速数据传输系统的参数设计和工作原理 ,给出了不同长度测井电缆上的测试结果。 电缆实测结果表明 ,在 7 000 m长的测井电缆上 ,基于OFDM 技术的测井电缆高速数据传输系统可获得900 kbit / s 以上的数据传输速率和低于 5E28 的误码率。当变压器的接入模式为 Mode2II时 ,系统最高的数据传输速率可达到 1. 1 Mbit/ s。(To solve t he low data t ransmission rate problem in t he conventional single car rier mod2 ulation met hod for logging cable and enhance t he data t ransmission rate , a new data t ransmission system with high data t ransmission rate for logging cable is propo sed , which is based on t he Or2 t hogonal Frequency Division Multiplexing (OFDM) technology. The working principle of OFDM modem and t he procedure of data t ransmission system are al so presented and lot s of test s are car2 ried out on logging cables with different lengt hs. It is verified that t he data t ransmission rate can reach 900 kbit/s on 7 000 meter s logging cable wit h bit er ror rate (BER) lower t han 5E28 , and t he maximum data t ransmission rate is 1. 1 Mbit/s under Mode2II of t he t ransformer .)