WIMAX_OFDM

bpsk qpsk 16qam 64qam频带上的调制解调信号包括误码率曲线，眼图和星座图(bpsk qpsk 16qam 64qam modulation and demodulation)

说明：  FreeModbus_Slave-Master-RTT-STM32-master V1.6

说明：  讨论了变换域通信系统中收发端一致时的系统性能，包括AWGN信道及单音，多音，窄带，扫频干扰(Discussed the transform domain communication system is identical to sending and receiving end system performance, including the AWGN channel and the tone, multi-tone, narrowband, swept-frequency interference)

Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK. Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve. The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one) of the information-bits Weight Enumerating Function (WEF) using A simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.(Computes BER v EbNo curve for convolutional encoding/soft decision Viterbi decoding scheme assuming BPSK. Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on theestimation (approximate one) of the information-bits Weight Enumerating Function (WEF) usingA simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.)

BD预编码 基于完整信道信息的MIMO预编码仿真(failed to translate)

说明：  服从瑞丽分布的多普勒频移的MATLAB仿真经典(MATLAB Simulation Classic of Doppler Frequency shift following Rayleigh Distribution)

本文系统的介绍了TQ2440开发板相关知识，对这方面的读者很有作用。(This article describes the system development board TQ2440 knowledge, useful in this respect the role of the reader.)

16QAM信号最佳接收机，包括信号生成（+成型滤波）、上载波、过信道、下变频、匹配滤波、定时同步等过程(the optimal receiver for 16QAM, including signal source( shaped filter),modulation,AWGN channel, matched filter, timing sychnoization and so on)

说明：  基于接收信号强度的KNN室内定位算法，还有测试数据。适合初学者参考(KNN indoor positioning algorithm based on the received signal strength, as well as test data. For beginners)

小区搜索程序，能够在OFDM框架下对信号的调制解调定位等问题进行仿真。(Cell search procedure, to the framework of the OFDM modulation and demodulation of the signal localization issues such as simulation.)