ptsm

说明：  实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on )

实现了lfm信号的仿真，可以对其频谱和时域波形进行分析，并且仿真了其模糊函数，可以分析其雷达性能。(The simulation of LFM signal is realized, and its spectrum and time domain waveform can be analyzed, and its ambiguity function can be simulated to analyze its radar performance.)

收发传真，浏览传真的程序(A program which receive、send and scan fax)

NRZI仿真程序,可以直接生成波形~使用M文件(NRZI simulation procedures can be directly used to generate waveforms ~ M documents)

单脉冲测角完整各种资料,十分的齐全，写的都还很详细，有利于的对测角算法的理解(Single pulse to calculate angle )

说明：  OPNET软件仿真包交换网络，并在其中加入排队模型并拓展网络拓扑，对于统计量有不同影响(OPNET software simulates packet switching network, adds queuing model and expands network topology, which has different influence on statistics)

通过对系统能量的收集 使系统的能效达到最大(leakage_minimization_k_user)

miso in wireless sensor network

一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)

A Study on OFDM Mobile Radio Transmission Scheme with Adaptive Guard Interval Length