16QM for ML-sysy

锁相环问题的仿真，可以解决数字锁相环的仿真问题(Phase-locked loop simulation problem, can solve the problem of digital phase-locked loop simulation)

LDPC码不同译码算法对比。码长512，码率1/2.(LDPC code decoding algorithm comparison. Code length of 512, a rate 1/2.)

We have proposed a novel pilot decontamination scheme which combines the two existing schemes: SPRS and WGC-PD scheme.

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.)

电脑之间蓝牙的通信，相当于一个蓝牙工具吧。(Bluetooth communication between computers, the equivalent of a Bluetooth tool bar.)

截获接收机采用时频分析进行跳频通信的参数估计程序(Intercepting the parameter estimation procedure of the receiver for time-frequency analysis for frequency hopping communication)

说明：  基于simulink，对二进制基带信号使用bpsk调制解调，进行仿真与性能分析.(the simulink of bpsk)

matlab中fsk调制与解解调解调方式有相干与非相干解调哟 (matlab fsk modulation and the solution demodulation Demodulation coherent and incoherent demodulation yo)

GSM reading book in the would

说明：  高阶累积量进行识别常用的数字调制信号，低信噪比下识别率高达90%(It uses the method of high cumulant to recognize usual digital signals, under low SNR, the radio is still over 90%.)