gpslab()

Power line communication in matlab platform.Its interesting pdf regarding simulation of PLC channel

gps北航实验部分的源代码，口供参考，声源部分较容易(for gps experiment to account where the sound is)

他励直流电机直接启动，串电阻启动和降压启动模型。内附三种启动方式的模型图和各类参数变化(Excited DC motor direct start, the string resistance start-up and step-down start model. Included three starts the model diagram and changes in various parameters)

求风场数据的平均风速，每天，每个小时，每3s，每2s的平均风速和玫瑰图(solve the problem of average wind speed)

说明：  一个GPS网WGS_84平差坐标向地方独立坐标的转换文档，比较全(A GPS network adjustment WGS_84 independent coordinates to local coordinates of the conversion document, compare the whole)

gps 定位算法仿真程序 导航定位解算原理仿真(gps navigation simulation program )

1）语音信号的采集 2）语音信号的频谱分析 3）设计高通、低通数字滤波器和画出其频率响应 4）用滤波器对信号进行滤波 5）比较滤波前后语音信号的波形及频谱 6）播放原始语音信号 7）实现快放、慢放功能 8）实现回音音效效果 9）实现变高音、低音效果 10）设计GUI系统界面 (1) voice signal acquisition 2) speech signal spectrum analysis 3) design high-pass, low pass digital filter and plot its frequency response 4) filtering the signal with a filter 5) to compare the before and after filtering the speech signal waveform and spectrum 6) Play the original voice signal 7) to achieve fast, slow function 8) to achieve an echo sound effect 9) to achieve change treble, bass 10) GUI system interface design)

分层copula paircopula的计算，已调试成功，能正常使用(Layered copula paircopula calculation, debugging has been successful, can be used normally)

说明：  标准GPS星座的仿真程序。注：采用24颗卫星(Standard GPS constellation simulation program. Note: The use of 24 satellites)

QPSK平台上的载波频偏经典估计算法实现，和估计出来之后进行补偿然后解调，统计误码率(QPSK frequency offset error data MSE SNR)