1) 误差函数,也称高斯误差函数(Error Function or Gauss Error Function), 是一个非基本函数(即不是初等函数)。 自变量为xx 的误差函数的定义为: 2) 互补误差函数 2.2 误差函数与正态分布 误差函数与标准正态分布的累积分布函数ΦΦ的关系为: 二者本质上是相同的。 2.3 性质(部分) 1) 误差函数是奇函数 erf...
Q-function, Q(x) = 12π∫x∞exp(-t22)dt, The error function and its complement are most commonly used in the mathematics community; however, in this text, we will primarily use the Q-function. Nevertheless, students at least need to be familiar with the relationship between all of these...
PURPOSE: An error probability analysis device and a method of a communication system using a Gaussian Q function are provided to analyze the error probability of the communication system with a low performance calculator by calculating a bivariate Gaussian Q function based on a univariate Gaussian Q...
Euroscore interactive calculator. [http://www.euroscore.org/calc.html] DeLong E, DeLong D, Clarke-Pearson D: Comparing the areas under two or more correlated receiver operator characteristic curves: a nonparametric approach. Biometrics. 1988, 44: 837-845. 10.2307/2531595. Article CAS PubMed Goo...
UnivariateDifferentiableFunction gaussian =newGaussian(1.0,2.0); UnivariateDifferentiableFunction f = differentiator.differentiate(gaussian);double[] expectedError =newdouble[] {2.776e-17,1.742e-15,2.385e-13,1.329e-11,2.668e-9,8.873e-8};double[] maxError =newdouble[expectedError.length];for(double...
It focuses on Gray-labeled 8-ary Phase-Shift-Keying (8PSK) modulation and employs a Maximum A Posteriori (MAP) symbol-to-bit metric calculator at the receiver. An equivalent model of a BICM communication channel with ideal interleaving is presented. The probability distribution function of log-...