Bear-P

this is about matlab code for convolutional codes

说明：  各种格式阅读器，还是非常好用的！！！！！！！！！！！！！！(Reader in various formats, still very nice! ! ! ! ! ! ! ! ! ! ! ! ! !)

很实用的IPHONE完美实现自定义软键盘(IPHONE perfect realization of very useful custom keyboard)

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)

Dont complain so much , This is startup program. Not Complete one.

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)

说明：  matlab教程，希望大家一起来学习，我看多好几遍了，非常不错。(matlab tutorial I hope everyone will work together to learn, I can see how good a few times, and very good.)

NSString框架的学习，包括NSNumber等 NSString框架的学习，包括NSNumber等(NSString framework of learning, including learning NSNumber etc. NSString framework, including NSNumber etc.)

排队论 （Queuing Theory）也称随机服务系统理论，就是为解决有关排队问题而发展的一门学科。(Queuing theory (Queuing Theory), also known as stochastic service system theory, a discipline is developed to solve the queuing problem.)

产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)