xifensanjiaobo

TI TMS320C6678的硬件信号量使用例程，非常珍贵，值得收藏。CCS版本V5.1(TI TMS320C6678 hardware semaphore routine use, very precious, worthy of collection. CCS version V5.1)

信道解码viterbi算算法的matlab实现，详细 (Channel decoder viterbi Algorithm for Matlab realization)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

《gps基本原理及其matlab仿真》(西安电子科技大学)里面的程序源代码，都是自己亲自敲上的。对入门很有用的。这是获取导航信息的。(The basic principle of GPS and the matlab simulation (xi an university of electronic science and technology) in the program source code, is knock on yourself. The introduction is very useful. This is for navigation information. )

常用CMOS模拟开关引脚功能和工作原理，介绍了四双向模拟开关CD4066，单八路模拟开关CD4051，双四路模拟开关CD4052，三组二路模拟开关CD4053，十六路模拟开关CD4067等等及其典型应用举例(Commonly used CMOS analog switch pin functions and working principle, introduce a four-way analog switches CD4066, a single eight-way analog switches CD4051, dual four-way analog switches CD4052, three sets of analog switches Rd CD4053, 16-channel analog switches CD4067, etc. and their typical Application example)

说明：  在图像上画一条线，提取所在位置的像素。主要是用来观察横向异质性变化的。(Draw a line on the image and extract the pixels at the location. Mainly used to observe changes in lateral heterogeneity.)

衰落信道的仿真，包括瑞利，莱斯信道，还有分集接收等内容(Fading channel simulation, including the content of the Rayleigh and Rice channel, there is diversity reception)

TMS320F28335 全套开发例程(TMS320F28335 full suit examples code)

说明：  snakes算法简单程序（可运行），对初步学习snakes算法有帮助(snakes simple algorithm (runs), the preliminary study snakes help Algorithm)

主要 对无线定位TDOA CHAN算法以及TAYLOR算法进行误码仿真并且仿真了一种两算法相结合的算法 并对误码进行比较(The content is mainly to simulate Chan Algorithm and Taylor Algorithm ,then compare their error performance.Based on them,A new Algorithm combining the two type of Algorithm is also proposed.)