far_near

说明：  4. 试说明卷积编解码的工作原理： (1) 使用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。 (2) 请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4. Try to explain the working principle of convolutional codec: (1) Simulink was used to simulate convolutional coding, and Viterbi decoding method was used for decoding. The coding and decoding were all written by oneself (s-function method), rather than calling the existing coding and decoding functions of Simulink. (2) in the additive white gaussian noise channel, please draw the curve of the relationship between bit signal-to-noise ratio and bit error rate.)

说明：  HHT变换的核心是EMD,在此项过程中通过EMD的编程和HHT的编程来实现了希尔伯特黄变换,可以看出处理此方法用来处理非线(The core of HHT transform is that EMD, realizes Hilbert Huang transform through EMD programming and HHT programming in this process. It can be seen that this method is used to deal with non-linear.)

说明：  一种PC与单片机多机RS232串口通信设计应用(A PC with a single-chip multi-machine RS232 serial communication design application)

matlab simulation for radar systems design

说明：  使用python基于numpy编写函数和程序，完整实现了SC-FDE链路的仿真，包括调制、成型滤波、信道、同步、频偏补偿、均衡、解调。(Full realization of SC-FDE link simulation using python with functions based on numpy.)

MIMO下天线选择matlab仿真实现，比较简单(MIMO antenna selection under)

说明：  无线衰落信道下的通信仿真，可以更换几种常见的衰落模型，如莱斯衰落，瑞利衰落等(Several common fading models, such as rice fading and Rayleigh fading, can be replaced in the communication simulation of wireless fading channel.)

一篇非常经典的关于CDMA系统自适应阵列信号处理恒模算法(a very classic on the CDMA system adaptive array signal processing CMA)

MIMO中的天线选择，空间调制，空时分组码空间调制，等一些算法的仿真(mimo study- spatial modulation is a rencently developed transmission technique that uses multiple antennes.)

高动态模型，加加速度，加速度和速度都可以改变，仿真出多普勒频偏变化和相位变化。(High dynamic model of acceleration, acceleration and speed can be changed, the simulation of doppler frequency and phase changes.)