▍1. ofdm-modulation
该文档为一个实现ofdm子载波调制和解调的代码,利用QPSK和16QAM两种方式实现,并附有运行结果。(This document is an implementation of ofdm subcarrier modulation and demodulation of the code, the use of QPSK and 16QAM two ways, along with operating results.)
该文档为一个实现ofdm子载波调制和解调的代码,利用QPSK和16QAM两种方式实现,并附有运行结果。(This document is an implementation of ofdm subcarrier modulation and demodulation of the code, the use of QPSK and 16QAM two ways, along with operating results.)
加窗QPSK-OFDM调制解调,每个OFDM符号采用QPSK调制方式,并画出了时域对比图(Windowed QPSK-OFDM modulation and demodulation, each OFDM symbol using QPSK modulation and a time-domain comparison chart shown)
线性调频连续波的雷达测距测速的两次FFT(Linear frequency modulation continuous wave radar ranging and speed estimation by twice FFT.)
说明: 生成m序列和gold序列的matlab代码,并比较他们的自相关、互相关特性。(Generate matlab code of m-sequence, and control the generation of m-sequence with specified requirements through input tap)
程序使用了自相关性和互相关性较好的gold码作为扩频序列,直扩,扩频增益设置为31,模拟用户数为4(Program uses a self-correlation and cross-correlation of the better gold code as spreading sequence, direct expansion, spreading gain is set to 31 to simulate the number of users of 4)
对OFDM运用的QPSK的调制与解调,其中包括星座图,误码率的仿真(Use of OFDM QPSK modulation and demodulation, including constellation, BER simulation)
OFDM的QPSK及其调制matlab程序(OFDM-QPSK modulation matlab and its procedures)
采用拟合和插值两种方法的外耳中耳的传输函数特性曲线(Transfer Function Characteristic Curves of Middle Ear and Outer Ear Using Fitting and Interpolation)
实现了64qam,16qam和QPSK的误码率仿真(The bit error rate simulation of 64qam, 16QAM and QPSK is realized.)
说明: 实现了64qam,16qam和QPSK的误码率仿真(The bit error rate simulation of 64qam, 16QAM and QPSK is realized.)
说明: 采用Jakes模型的瑞利信道仿真matlab程序(Rayleigh Channel Simulation matlab Program Using Jakes Model)
OFDM系统在QPSK与16QAM调制下,误码率比较程序,希望对大家有一定用处(OFDM system with 16QAM QPSK modulation, error rate procedures, We hope to have some use)
利用matlab实现ASK和FSK调制解调过程对比他们的不同(Using MATLAB to realize the modulation and demodulation process of ASK and FSK, their differences are compared.)
说明: DS-CDMA数字基带传输系统+MATLAB仿真图+程序代码(DS-CDMA digital baseband transmission system + MATLAB simulation diagram + program code)
说明: 1、基带码型仿真 (1)通过仿真观察占空比为50%、 75%以及100%的单、 双极性归零码波形以及其功率谱,分析不同占空比对 仿真结果的影响。 (2) 通过仿真产生一随机消息码序列,将其分别转换为 AMI码和HDB3码,观察它们的波形及其功率谱密度。 2、数字带通调制系统仿真 设计一个采用2ASK( OOK) 调制的数字通信系统: 产生二进制随机数据,并仿真其对应的2ASK调制波形, 分析其频谱。所产生的调制波形加入不同信噪比的白噪声, 选取合适的接收方案,画出系统误码率曲线,并与理论误 码率进行对比。(1.Baseband pattern simulation 2. Simulation of digital band-pass modulation system)
一个MIMO系统,发射方采用空时网格码编码,信道为锐利衰落,接收端已知信道情况。程序很详细,对做毕设的很有帮助。(A MIMO system, the launch party use of space-time trellis coding, channel for the sharp decline of the receiving end of known channel case. Procedures in great detail, the complete set of very useful to do.)
用simulink中s函数实现两路切换开关(S function with simulink realization of two-way switch)
非规则LDPC码在AWGN信道下的性能仿真,码长1024,码率0.5,调制方式QPSK(simulation of LDPC codes in AWGN channel)