check4

51MODBUS从机程序源码希望对有用的人有用，，(51MODBUS,welcom to here,thank you very mouch.)

说明：  该程序给出了利用Saleh模型进行功率放大器预失真的过程．(The program gives the power amplifier pre-distortion with Saleh models.)

说明：  factorialsss code in c++ and cyclic redundancy check is exceuted in c++

利用matlab自适应滤波器实现心电信号的去噪 自适应滤波器 心电图(De-Noising of Electrocardiogram (ECG) with Adaptive Filter Using MATLAB)

说明：  基于经典music算法及其修正算法的DOA估计以及性能仿真(DOA estimation and performance simulation based on classical Music algorithm and its modified algorithm)

信道检错编码，CRC编码，包括详细的注释，很不错的程序(Channel error detection codes, CRC codes, including detailed notes, a very good program)

直接序列扩频原理仿真.用ELAINX公司SYSTEMVIEW调试.(Direct Sequence Spread Spectrum simulation theory. SYSTEMVIEW ELAINX companies with debugging.)

my first big assignment

航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency )

说明：  本篇讲解遥控信号的ASK、FSK、PSK解调与动画设计的Matlab程序实现。 (This remote control signals on ASK, FSK, PSK demodulation and animation design of the Matlab program.)