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本书籍讲诉的是objective-C编程中的ARC规范，是高手的必看书籍。(This book stresses that the ARC specification of objective-C programming, is the master of the books.)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

MATLAB SIMULINK SIMITH 控制模型(MATLAB SIMULINK SIMITH control model)

及时通信，及时通信，及时通信，及时通信，及时通信，(Timely communication, timely communication, timely communication, timely communication, timely communication,)

说明：  iPhone真机调试及如何上传到Apple Application Store平台。(iPhone-device debugging and how to upload to the Apple Application Store platform.)

很炫的抽屉式侧边栏导航效果，精选ios编程学习源码，很好的参考资料。(Drawer type sidebar navigation effect of cool, selection of learning IOS programming source code, a good reference.)

itools程序源码，可以管理IOS程序，需要Xcode编译，并生成MAC程序(itools can manage IOS program)

类似于Pinterest的瀑布墙图片展示demo，精选ios编程学习源码，很好的参考资料。(Similar to the Pinterest waterfall wall pictures demo, select learning IOS programming source code, a good reference.)

动画 uivie 大小变化 uiView的变化(Changes in the size of the animation uivie changes uiView)

音频得信号处理 画图 和数据得分析 根据声音画出音波图形(Paint the audio signal processing and data obtained was analyzed)