guided滤波器 matlab

信道化的Matlab仿真程序。利用FFT进行均匀信道化，程序可扩展。

用于ofdm的盲信道估计算法，可以用于系统性能的提高和改进-OFDM for the blind channel estimation algorithm can be used to enhance system performance and improve the

在节点上给出节点基函数，然后做基函数的线性组合，组合系数为节点函数值，这种插值多项式称为拉格朗日插值公式线性插值也叫两点插值，已知函数y = f (x)在给定互异点x0, x1上的值为y0= f (x0)，y1=f (x1)线性插值就是构造一个一次多项式P1(x) = ax + b使它满足条件P1 (x0) = y0 P1 (x1) = y1其几何解释就是一条直线，通过已知点A (x0, y0)，B(x1, y1)。线性插值计算方便、应用很广，但由于它是用直线去代替曲线，因而一般要求[x0, x1]比较小，且f（x）在[x0, x1]上变化比较平稳，否则线性插值的误差可能很大。为了克服这一缺点，有时用简单的曲线去近似地代替复杂的曲线，最简单的曲线是二次曲线，用二次曲线去逼近复杂曲线的情形。

Bresenham法画圆  C语言入门程序，画图板应用程序，调试后能成功运行，进攻入门学习用

一个大整数计算的小程序,可以进行大数的计算,可以对素数进行测试-a large integer calculation procedures for the small, the large numbers can be calculated in the number of test-

Laplace method to make mesh

资源描述数值积分法算大地线，正反算程序，还有角度弧度转换的算法。算法亲身实验计算跟大地测量书上结果吻合，算法效率高。

利用C语言产生随机数，每次的随机数都是不一样的，并把随机数写到指定的文件中-The use of C language random number generated each time the random number is not the same, and wrote a random number of the document specified

modbus RTU 的C51程序  单片机89S52 通信波特率 9600 8位数据 1位停止位 偶校验 485通位接口 单片机控制板地址 localAddr(变量) 通信可设置数据的地址： 字地址 0 - 255 (只取16位的低8位) 位地址 0 - 255 (只取16位的低8位)

       Dual Tone Multi Frequencies (DTMF tones) are two different tones at two ends of a spectrum that are used to send information in telephonic communication mediums. The tones represent numbers 0-9 and the symbols * and #. A series of these numbers may be assigned to individuals as points of contact, as in a phone number, or the numbers can be used to relay other sorts of information.       While it may seem confusing, it should be noted that all numbers on a telephone are assigned two DTMF tones, and in all, seven different frequencies are assigned. Some numbers will have the same lower frequency, but different higher frequency, while others will have the same higher frequency but a different lower frequency. The range is between 697 Hz and 941 Hz for the lower frequencies and 1209 Hz and 1633 Hz for