boc_psd

说明：  通信系统中的simulink仿真，不同信道的误码率性能以及数字通信中的自适应均衡，语音压缩技术中的线性预测编码，RLS干扰抑制等(Simulink simulation in communication system, bit error rate performance of different channels and adaptive equalization in digital communication, linear predictive coding in speech compression technology, RLS interference suppression, etc)

无线通信中继协作功率控制相关代码Wireless communication relay cooperative power control related code(Wireless communication relay cooperative power control related code)

水声声线仿真，基于射线模型。文章包含仿真条件和说明。文章附件为程序。(Underwater acoustic line simulation, based on the ray model. The article contains simulation conditions and instructions. The article appendix is the procedure.)

16QAM调制信号的GAD定时恢复，对定时恢复环路的验证和实现(Gardner Timing Recovery for 16QAM)

说明：  wireless communication channels model

说明：  蝙蝠算法的简单实现，基于matlab的蝙蝠算法(Simple implementation of bat algorithm, bat algorithm based on matlab)

用户对呼吸信号处理的matlab程序,用户对呼吸信号处理的matlab程序(deal respiration sigal,matlab)

说明：  5. 在三条径的瑞利信道中，对于直接序列扩频： (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum: (1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate. (2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve. (3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)

用差分法解有限宽轴承静载平衡压力分布,求解椭圆形方程(Finite difference method with wide-bearing solution containing a balance of static pressure distribution, solution of elliptic equations)

说明：  对数字信号进行相位幅度调制，并在接收端成功解调(QAM of Digital Signal and Successful Demodulation at Receiver)