graphlayout

，用MATLAB实现快跳频通信系统的仿真。主要应用了SIMULINK和COMMUNICATION BLOCKETS两个模块。整个设计包括了信源产生部分、发送部分、跳频调制部分、信道部分、接收部分和结果分析部分共六个模块，核心技术是伪随机序列的产生和频率合成器的设计，而关键技术是收发两端的伪随机码元的同步。伪随机码的产生用S－函数编程来开发自己的SIMULINK模块。同步的实现是收发两端采用相同的扩频脉冲触发。而且在设计中每个模块都采用了模块封装技术，从而简化了框图结构(Using MATLAB to achieve fast frequency-hopping communication system simulation. The main use of SIMULINK and COMMUNICATION BLOCKETS two modules. The whole design, including part of the generated source, sending part of some frequency-hopping modulation, channel of the receiving part and the results of analysis of part of a total of six modules, the core technology is the emergence of pseudo-random sequence and frequency synthesizer design, and the key technology is the transceivers at both ends of the pseudo-random synchronization symbol. Pseudo-random code generated by S-function programming to develop their own modules SIMULINK. Synchronization is used to send and receive ends of the same spread-spectrum pulse trigger. But also in the design of each module using the module packaging technology, which simplifies the structure of the diagram)

synchrhonization effects

为了有效对抗灵巧噪声，从雷达信号与噪声信号的产生原理出发，对比了 2 种信号的时、频域差别，并就对抗技 术进行了针对性探讨，研究表明结合信号特征差异识别和针对性的噪声对抗技术能够有效解决灵巧噪声干扰问题(In order to effectively fight smart noise generated from the principle of the radar signal and noise signal of departure, when comparing the two kinds of signals in the frequency domain differences, and to explore targeted against technology, research shows that differences in signal characteristics combined with the identification and targeted Noise confrontation smart technology can effectively solve the noise problem)

geometric shape modeling3

introduction to jpeg

计算船舶pitch运动阻尼 经验公式法 计算船舶pitch运动阻尼 经验公式法(calculate pitch motion and damping by empirical equations)

this is a simple illustration of a bang bang controller...

COLOR DETECTION FROM HUE

matlab数字水印算法及实现和源代码 功能很强大 (Matlab digital watermarking algorithm is proposed and realized and the source code)

mobile user location matlab coding