Modbus 主站读写程序

说明：  通过labview实现通信信道仿真中的信道估计以及时域均衡，注意这个是以及完整实现了信道的搭建，通过添加时域均衡以及信道估计实现最终的仿真(The channel estimation and time-domain equalization in communication channel simulation are realized by labview. Note that this is to build the channel completely. The final simulation is achieved by adding time-domain equalization and channel estimation.)

实现sc-fde的信道估计和频域均衡，通信专业必备，MATLAB软件(Implementation of channel estimation and frequency domain equalization SC-FDE)

说明：  用于快时变信道的信道估计算法，基于BEM实现(The channel estimation algorithm for fast time-varying channel is implemented based on BEM)

说明：  单频信号经过多径时变信道后，输出信号的包络随时间随机起伏，输出信号的频谱从冲激谱变成一个窄带频谱。径数位20，变化频率从0—2HZ随机均匀抽取。(Single-frequency signal through time-varying multipath channel, the output signal envelope random fluctuations over time, the output signal from the impulse of the spectrum into a narrow-band spectrum spectrum. Digital Drive 20, changes in frequency from 0-2HZ uniform random samples.)

叠加训练序列的最小二乘信道估计与最小均方误差均衡，QPSK调制，做了4次迭代估计的性能对比。(superimposed training, least squares (LS) channel estimation, MMSE equalizer, QPSK modulation, 4 times iteration.)

半带滤波器，工作在采样率122.88Msps上(Half-band filter, working at the sampling rate of 122.88 Msps)

这是蓝牙4.0的规范说明文档，对于了解4.0协议有所帮助。(This is the Bluetooth 4.0 specification document helpful for understanding the 4.0 protocol.)

说明：  polar码的SC译码，里面有详细的代码介功能绍pdf，非常细致(SC decoding of polar code, which has detailed code introduction function PDF)

该文档提供ASK,BPSK,QPSK,4QAM,16QAM等多种调制格式的LMS时域均衡算法，最初结构由MathWorks提供。(This document provides LMS time domain equalization algorithms in ASK, BPSK, QPSK, 4QAM, 16QAM and other modulation formats. The original structure is provided by MathWorks.)

使用Jakes所假设的模型，用来产生信道抽头延迟线模型中的抽头增益过程所需的多普勒频谱成形滤波器有多种实现方法。时域FIR滤波器是最常用的一种实现方法。(Assumed the use of Jakes model, used to generate the channel-tap-tap delay line model of the process gain the necessary Doppler spectrum shaping filter has a variety of implementations. Time domain FIR filter is an implementation of the most commonly used method.)