rbtPasswordTextField

matlab 灰色理论函数，自己写的灰色理论函数，可以用来预测未来的数据。(matlab gray theory function)

matlab 图像锐化 图像增强 高通滤波 巴特沃斯(image enhancement matlab image sharpening high-pass filter 波巴特沃斯)

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)

A good guideline for objective c programmers.

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.)

右边伸出的bar导航，IOS编程学习源码，很好的参考资料。(Bar navigation right out, learning IOS programming source code, a good reference.)

用matlab实现RS（255,223）的编码，叫噪声，译码，并求出纠错个数，可以正确运行。(RS (255,223) coding using matlab, called noise, decoding, and calculated the number of error corrections, you can run correctly.)

mantle json to model

object-c 基本语法说明- 利用在xcode上(object-c basic grammer- use xcode tool)

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)