Electric-telecontrol-protocol-of-104

本程序是移动通信中多径衰落信道的Matlab仿真，对移动通信中的瑞利信道、高斯白噪声信道、伦琴信道给出了simulink的系统模型，并在MATLAB中编写程序仿真。(This program is used for simulating the multi-path fading channel in mobile communication. The simulation tool is matlab. Rayleigh fading model,AWGN model and Rician fading modle is given in simulink.)

介绍了经典的时频分布和检测理论的同时，作者利用时频分布的方法，将一 维时间信号转化到二维的时频空间中，通过提取图像的特征来判决信号和杂波， 采用的数据是使用McMaster IPIX雷达，在加拿大东海岸附近测得的。实测数据 研究表明此方法可以得到很好的检测结果。 (In this paper,we first review the time-frequency analysis and time -frequency-based detection methods.Secondly,by analyzing a mass of the measured data of sea clutter,we show the difference of time-frequency geometric features between echoes with a target and pure sea clutter.Finally,we given the detection algorithm based on the time-frequency geometric features.The results of the measured data show that the proposed method can effectively find low-velocity small targets in sea clutter.This approach is a novel try to detect small targets in sea clutter.)

说明：  射频功放数字预失真技术研究及其FPGA实现，文中介绍了数字预失真的实现架构，介绍了QRD_RLS算法实现的相关CORDIC技术，GIVENS旋转，以及systolic阵等原理(RF power amplifier digital pre-distortion technology and its FPGA implementation, this paper describes the realization of digital pre-distortion framework introduced QRD_RLS relevant CORDIC algorithm implementation techniques, GIVENS rotation, and other systolic array principles)

在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案(The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program)

matlab的CDMA系统仿真，有很好的借鉴效果，希望多多下载。(The CDMA system simulation matlab, a good reference effect, I hope a lot of downloads.)

：介绍了一种基于数字信号处理器（DSP）的移相调频（Phase-Shifted and Frequency-Varied，PSFV）PWM控制 逆变电源，给出了主电路拓扑结构，分析了其控制原理并设计了其控制程序流程图。新颖的PSFV 控制能够实现输出 电压90％的调整率，输出电流波动小于单纯移相调功PWM方式，并在轻载时保持连续。功率开关器件零电压零电流 通断（Zero-Voltage-Zero-Current Switching，ZVZCS）软开关的实现，有利于进一步提高开关频率和降低开关损耗。采用 高性能的专用DSP 芯片TMS320F2812 实现了系统的数字控制，满足了系统控制的灵活性和实时性，减小了系统的 体积和生产成本。仿真分析和实验结果证明了此控制模式的可行性与合理性。()

这是关于现代电力系统优化模型及其相关算法研究的优秀博士论文，希望能对大家有用(This is on the modern power system optimization model and its associated algorithm for outstanding doctoral dissertation, hoping to be useful for all of us)

太阳能MPPT算法及matlab仿真结果(MPPT for Hybrid Energy System Using Gradient Approximation and Matlab Simulink Approach)

pcb设计过程中，如何最快的拉线，可以参考此文件(In the process of PCB design, you can refer to this document for the fastest cable pulling)

各类MSP430的应用方案，部分配有算法流程图，希望对广大网友有用(All kinds of MSP430 application program algorithms, hope to be useful to the general public)