密度

普通通信信号bpsk,qpsk,qam调制解调-bpsk qpsk qam fsk gmsk modulation and demodulation

背景 背景 背景 背景 背景 背景

完成双正交信号的数字通信系统的蒙特卡罗仿真。分析其在加性高斯白噪声下误码率与信噪比之间的关系，绘出误码率-信噪比曲线图，并和理论曲线进行比较。-Complete pairs of orthogonal signals in Monte Carlo simulation of digital communication systems. Analysis of the additive white Gaussian noise bit error rate and signal to noise ratio under the relationship between the mapped BER- signal to noise ratio curve, and and the theoretical curves for comparison.

提出了一个新的超声缺陷自动识别系统。该系统采用小波包分解提取超声信号的特征,采用混沌遗传算法来消除冗余和不相关的特征,并采用支持向量机(SVM) 来对缺陷进行识别。-Proposed a new ultrasonic flaw Automatic Identification System. The system uses wavelet packet decomposition extract the characteristics of ultrasonic signals using chaos genetic algorithm to eliminate redundant and irrelevant features, and using support vector machine (SVM) to identify defects.

ANSYS单元的中文翻译,详细介绍了各单元的用途.-Chinese translation of ANSYS element, setting out in detail the use of the unit.

shell教学视频，非常适合初学者。希望通过审核！-shell teaching video, very suitable for beginners. Hope that through review!

软考网络工程师复习笔记,软考网络工程师复习笔记-soft examination Review Notes network engineers, network engineers take soft Review Notes

串行通信键控步进电机系统 mega128的 丛书上光盘里的-Serial Communication keying mega128 stepper motor system of the series on CD-ROM

在线算法的 C语言 就是在线算法解决背包问题的一种,问题很长-Online algorithm is the C language online algorithm to solve a knapsack problem, the question is very long

一个超小型的UML画图工具，非常使用的，虽然只有几百K，但是能实现基本常用的一些功能-a small ultra-UML drawing tools, the very use, although only a few hundred K, But to achieve some basic common functions