Oscylator_Duffinga

本文首先介绍了逆变电源的发展现状及趋势。文中分析了适合数字控制的基于DSP 处理器 TMS320F2812 和智能功率模块（IPM）的逆变器硬件；介绍了 SVPWM逆变技术的基本理论，详细推导出了五种具体的 SVPWM 实现模式，并通过比较说明不同实现模式的优缺点，得到本课题采用的一种优化模式，设计研究了基于 SVPWM控制方式的软件；介绍了 Q 格式的基本理论，在程序中变量间的运算采用 Q 格式，提高了系统数据运算的速度和精度，实现了在定点处理器上进行高性能的浮点运算；详细讨论了片上模数转换模块的转换误差来源及影响，研究了减小转换误差的方法，采用了软件方法来对转换结果进行实时校正，提高了模数转换的准确度。(In the first, the current situation and development trends of the inverters are presented in the paper. Following is the analyses of hardware of the inverter suiting for digital control based on digital signal processor TMS320F2812 and the intelligent power module(IPM) the basic theory of space vector pulse width modulation (SVPWM) is introduced, five specific SVPWM modes of implementation are educed detailedly, following by the comparison which shows the advantages and disadvantages of different patterns, an optimization mode is got which is used in this project, and the software is designed based on SVPWM control pattern the basic theory of Q format is presented, variable Q format is adopted during the procedure for the calculation which improves the operation of the system data speed and precision, achieving the targeted processor for high-performance floating-point operation in the fixed-point DSP the error sources and effects of the on-chip analog-to-digital conversion module(A)

用matlab完成正交频分复用ofdm系统的信号发射与接收仿真(ofdm communication using matlab)

无线传感器网络，DCPR算法仿真, 基于LEACH算法改进，节点随机分布，通信功率不可变(a simulation of wireless sensor network routing protocol named DCRP)

直驱式永磁风力发电机模型，用于发电机并网研究，效果良好。(Direct drive permanent magnet wind turbine model, used in the study of generator interconnection, the effect is good.)

An Invitation to 3d vision 一书的配套源代码，对3d视觉和3d重建感兴趣的可以看看(Source code accompany <An Invitation to 3d vision >, anyone who is interested in 3d vision and reconstruction should see this.)

BPSK在AWGN信道下的仿真程序，matlab代码，功能齐全，是一个很好的平台(BPSK in AWGN channel under the simulation program, matlab code, full-featured, is a good platform)

DSP 2407 sci application

信噪比快拍数等对music算法精度的影响。(The influence of SNR and snapshot number on the accuracy of music algorithm.)

步进电机的SIMLINK模型，作为步进电机的模块，对步进电机进行仿真(Stepper motor SIMLINK model, as the stepper motor module, the simulation of the stepper motor)

说明：  模拟调制识别各特征参数随信噪比变化曲线。信号的瞬时信息包括瞬时幅度、瞬时相位、瞬时频率及其不同角度的统计特征值，其中瞬时幅度、瞬时相位、瞬时频率是一个信号最基本的特征。（AM、DSB、SSB、VSB、FM、AM-FM）(Simulated Modulation Recognition Curve of Variation of Characteristic Parameters with Signal-to-Noise Ratio)