hyperIca

说明：  一些才语言小程序，供初学者学习，但是很有用。(c)

一个直扩同步的模块，用于伪码的捕获和多普勒频移的提取(A synchronous DS module for pseudo-code capture and extraction of Doppler frequency shift)

一个mc-cdma的程序，存在频率偏移和多普勒的情况下的同步问题(Mc-cdma a procedure, there is a frequency offset and Doppler in case the synchronization)

本文建立了独立悬架汽车整车七自由度动力学模型，推导了振动微分方程，运用数值仿真的手段研究了汽车悬架阻尼系数、刚度等设计参数对汽车振动特性的影响规律。结果表明，在共振区域附近，相对较大的刚度，会导致汽车的舒适性下降，但在共振区以外的高频区，刚度对汽车振动幅值的影响并不大；后桥悬挂阻尼对汽车振动幅值的影响较前桥强烈，适当增大后桥悬挂的阻尼有利于振动幅值的降低(This paper established an independent suspension vehicle dynamic model of seven degree of freedom, the vibration differential equation is derived, using the numerical simulation method of vehicle suspension damping coefficient, influence of design parameters on vehicle vibration characteristics of stiffness. The results show that in the resonance region, a relatively large stiffness, will lead to the comfort of the car down, but in the resonance region outside the high frequency region, the effect of stiffness of the vehicle vibration amplitude is small; the effect of damping on automobile suspension vibration amplitude is strongly increasing the rear axle axle, suspension damping to reduce the vibration amplitude)

说明：  用MATLAB观察DDS输出波形 用MATLAB观察DDS输出波形 (Using MATLAB to observe DDS output waveform using MATLAB observation DDS output waveform)

TCM编码解码，用matlab语言编写，用于编程参考。(TCM codec matlab language for programming reference.)

说明：  最速下降法matlab源码 有一定参考价值(Steepest descent method matlab source has certain reference value)

采用MFSK调制的快速跳频通信系统，分析了各个阶段的频谱图(Using MFSK modulation of fast frequency hopping)

Fast Fourier transform matlab code foile

平面4节点单元的动力响应计算的有限元程序，用MatLab编制。(Plan 4 nodes finite element program of MatLab for dynamic problems)