Astar-code

用VB编写的串口调试助手，附带51程序，大家可以学习，很经典，很地道(With VB serial debugging assistant, with 51 programs)

针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

matlab中fsk调制与解解调解调方式有相干与非相干解调哟 (matlab fsk modulation and the solution demodulation Demodulation coherent and incoherent demodulation yo)

说明：  仿真Alamouti 的 BER 性能曲线（QPSK 调制）(Simulation BER of QPSK Alamouti STBC with two transmit and receive antenna)

一本很好的基于matlab的通信原理模型，里面有所有模型的代码(A good model of communication theory based on matlab, there are all models of the code)

该代码实现的功能是对.tif格式的图片自动分页，并且可以实现数据的查找切割提取。(To achieve the functions of the code. Tif format images automatically paging, and extract data to find cutting.)

CALL DROP KPIS AND RELATIVE COUNTERS

这本书是针对英语高级本科生和研究生的。尼林，科学，数学和计算。它希望熟悉微积分、概率论和线性代数为科学家和工程师开设一年的数学本科课程。传统的信息论课程不仅涵盖美香农丰富的理论思想，也是沟通的实际解决方案-问题。这本书更进一步带来了贝叶斯数据建模，蒙特卡罗方法、变分方法、聚类算法和神经网络网络。(Information Theory, Inference, and Learning Algorithms)

在MATLAB上设计一个（2，1，3）卷积编码器和对应的采用维特比译码算法的译码器。编码器的生成多项式为：[1 0 1；1 1 1]。将编码器的输出经过一个高斯白噪声信道的结果作为译码器的输入，观察比较译码器输出和编码器输入，了解卷积码的容错性，并计算译码结果的误比特率.(A convolutional coder (2, 1, 3) and corresponding decoder using Vitby decoding algorithm are designed on MATLAB. The generating polynomial of encoder is: [1 01; 11 1]. The output of the encoder through a Gauss white noise channel as a result of the decoder input, compare the output of the decoder and encoder input, understand the fault tolerance of convolutional code, and calculate the decoding results of bit error rate.)

TCM with BCJR (Log-Map) & channel Encoder Coded_Modulation