diqiujingzhiguidao

高质量C++/C 编程指南 主要介绍了如何提高代码的执行效率,代码的结构布局,高效率代码的编写,以及C/C++中重要的部分(High-quality C++/C Programming Guide describes how to improve the efficiency of the code, the code structure and layout, efficient code writing, and the C/C++ important part in the)

Hybrid Simulated annealing for synthesis of fiber Bragg grating

ofdm中的PAPR问题的CLIPPING方案的BER(ofdm in the PAPR problem CLIPPING program BER)

将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩。(The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.)

travel saleman problem

一个交叉验证的matlab源码，语句简单，清楚，易修改，好实现(Matlab source code, a cross-validation statement is simple, clear, easy to modify, good to achieve)

几个粒子滤波的粒子。包括普通的粒子滤波和基于扩展卡尔曼滤波器的粒子滤波器源程序。(Several particle filter particles. Including ordinary particle filtering and extended Kalman filter-based particle filter source.)

二相编码信号的产生以及频谱分析，可以产生7位、11位、13位典型编码信号以及13位bark码的频谱图，通过仿真可用(Two-phase coded signal generation and spectrum analysis, can produce 7, 11 and 13 typically coded signals and 13 yards of bark frequency spectrum, through the simulation can be used)

路径损耗，阴影，衰落（瑞利，莱斯和中头m）；信号的调制，解调和比特错误率（BER）与SNR曲线(The path loss, shadowing, fading (Rayleigh, Rice and Nakagami-m) signal modulation, demodulation and bit error rate (BER) and the SNR curve)

以软件为主的方法实现QRS波的检测滤波之后的信号一般经过一些 变换以提高QRS波的份量，进而采用一系列阈值进行判别，这些阈值有固定 阈值法，也有可变阈值法。前者由于可能的干扰或高P、高T波的存在，若 其滤波后超过其阈值便会产生假阳性(FP，falsepositive)结果；另外，当心 律失常或QRS波幅度变小，阈值设置过高，会导致漏检产生假阴性(FN， falsenegative)结果。由于固定阈值的这些缺点，有研究者提出了用可变阈 值检测，以提高检测的精确率，所采用的可变阈值包括幅度阈值、斜率阈值 和时间间隔阈值等。(Give priority to with software method for detecting QRS wave signal after some commonly after filtering Amount of transformation in order to improve the QRS wave, then using a series of threshold to distinguish, the threshold value is fixed Threshold value method and variable threshold value method. The former due to the possible interference or the existence of the high P and T waves, if More than the threshold value is created after the filtering false positives (FP, falsepositive results In addition, be careful Law of disorder or QRS wave amplitude decreases, threshold is set too high, can lead to leak to produce false negatives (FN, Falsenegative) results. Due to these disadvantages of fixed threshold, some researchers have proposed using variable threshold Value detection, in order to improve the precision of detection rate, adopted by the variable threshold including amplitude threshold, the slope threshold And the time interval threshold, etc.)