使用FFT算法求两个信号的时频二维（互模糊）函数 fft_ambig

IEC60870-5-103通信规约的从站模拟软件，可以模拟一个采用单片机驱动的继电保护设备，自动向主站程序上送数据并响应主站数据的数据问询请求，并有可选择的状态变位和扰动数据进行上送(IEC60870-5-103 communication protocol slave simulation software can simulate a single-chip computer-driven protection equipment, automatic procedures to send data to the master station and respond to data inquiries master data requests, and there is an optional state displacement and disturbance data sent)

说明：  其中第一个压缩文件为ESPRIT在一维和二维下的算法，二维采用的是L形阵列，另外的一个文件是MUSIC算法以及rootMUSIC算法，以及两者的对比代码文件(One dimension and two dimension Esprit DOA estimation algorithm)

dac8568驱动程序编程，可以控制dac8568进行输出(Dac8568 driver programming)

通过具体的信道实例对比几种信道容量，绘出对数正态衰落、瑞利衰落、Nakagami衰落下确定的容量随平均接收信噪比变化的曲线。(The capacity of several channels is compared by a specific channel example, and the curve determined by the logarithmic normal fading, Rayleigh fading and Nakagami fading with the change of the average received signal to noise ratio (SNR) is drawn.)

用matlab写的m序列的模糊函数，运行后生成二维和三维仿真图(using Matlab m-sequences written by the fuzzy function after the operation generated 2D and 3D simulation map)

Cluster Head Selection using a Two-Level Fuzzy Logic in Wireless Sensor Networks

用VB编写的串口调试助手，附带51程序，大家可以学习，很经典，很地道(With VB serial debugging assistant, with 51 programs)

QPSK调制解调程序仿真程序，非常有参考价值(QPSK modulation and demodulation process simulation program, very useful)

认知无线电中频谱感知的方法，基于能量检测的算法和仿真(energy detection)

CONVERT A MATRIX TO LOWER TRIANGULAR MATRIX