matlab_simulink_spwm_pid

说明：  基于DSP 28335的永磁同步电机无位置传感器矢量控制(Sensorless Vector Control of Permanent Magnet Synchronous Motor Based on DSP 28335)

微网的双模式研究，对微电网逆变器的下垂控制、PQ控制以及孤岛检测方法进行了调研，对它们进行简要的叙述，文档作为课题的开题报告(Dual-mode research for microgrid)

该程序产生用于GPS卫星导航信号的C/A码，此程序在代码上进行优化，占用了更少的资源。( The program generates C/A code GPS satellite navigation signals for this program on code optimization, taking up less resources.)

基于matlab的QPSK调制与解调程序(QPSK modulation and demodulation)

Space Vector Modulated – Direct Torque Controlled (DTC – SVM) Inverter – Fed Induction Motor Drive

TI DSP TMS320VC5509A的SDRAM、I2S、DMA等的接口程序。(TI DSP TMS320VC5509A of SDRAM, I2S, DMA interface procedures.)

MIMO指多输入多输出，MIMO技术大致可以分为两类：发射/接收分集和空间复用。传统的多天线被用来增加分集度从而克服信道衰落，具有相同信息的信号通过不同的路径被发送出去，在接收机端可以获得数据符号多个独立衰落的复制品，从而获得更高的接收可靠性。这种技术往往要结合多天线技术，而多天线技术在移动通信中得到了广泛的研究。(MIMO refers to Multiple Input Multiple Output, MIMO technology can be broadly classified into two categories: transmit/receive diversity and spatial multiplexing. Traditional multi-antenna was used to increase the degree of diversity to overcome channel fading, the signal with the same information through different paths have been sent in the receiver-side data symbols can be multiple independent copies of the decline, which was higher reception reliability. This technology often have to combine multi-antenna technology, and multi-antenna technology in mobile communication has been widely studied.)

针对通信侦查课题，通过已知先验知识和截获信号，进行找出同步序列，匹配滤波，校正频偏和相偏，均衡，解交织，译码，恢复出原序列，最终得到的序列与原序列作对比得到误码率为0(Investigation subject for the communication, by known a priori knowledge and intercepted signal conducted to identify the synchronization sequence, the matched filter, correcting frequency offset, and phase deviations, balanced, deinterleaving, decoding, to recover the original sequence, the resulting sequence with the original sequence compared error rate is 0)

异构蜂窝网络环境搭建。7个正六边形小区。包括宏基站，小基站。以及用户的分布。(Heterogeneous environment to build a cellular network. 7 hexagonal cells. Including macro base station, small base stations. And the distribution of users.)

含有已知信道下BPSK,QPSK,8PSK,16QAM的MLSE均衡，MMSE（频域）均衡SER,BER性能的对比。(SER,BER performance coparing of BPSK,QPSK.8PSK,16QAM modulation of block transmission in MMSE or MLSE equalizer on known channel.)