shuzixindaohua

spaital modulation技术相比于v-blast,mrc等方式有了长足的进步。4bit/s/Hz频谱利用率下的空间调制程序，利用BPSK,4QAM和8QAM调制方式。(spaital modulation technique compared to the v-blast, mrc, etc. has made substantial progress. 4bit/s/Hz spatial modulation spectrum utilization under the program, using BPSK, 4QAM and 8QAM modulation.)

用互相关法实现时延差估计，时延差是使用TDOA算法实现定位的关键步骤！！！(use cross correlation function to estimate the time delay，time difference is a very important parameter when using the TDOA algorithm to positioning！)

鱼群算法在多目标寻优问题上的应用，注释详细，代码初学者必备。(Fish swarm algorithm in multi-objective optimization problem, the application of detailed notes, code beginners.)

C编写的8PSK调制解调，很有用，值得学习，代码编写很规范(Written in C 8PSK modulation and demodulation, very useful, it is worth learning, very standardized coding)

光子晶体微腔场分布及功率分布的计算（每个时刻的场分布都能得到）(Photonic crystal resonant cavities power distribution)

说明：  jack and jill went upto hill

lte物理层仿真 信道建模，平台搭建，matlab程序，函数功能具有详细描述。适合于LTE初学者。(lte-PHY process,simulink platform about channal model,simulink, lte-link_level matlab it is a very good material book for new student majoring LTE )

ofdm经典的schmidl&cox、H.Minn、以及park同步方案，英文原文.后者客服前者的缺点，能够实现精确的符号定时和频偏的联合估计(Robust Frequency and Timing Synchronization for OFDM，it is classical)

power_steppermotor.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_steppermotor.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

功能[DATAOUT]= PGA（DATAIN），执行相位梯度 ％ISAR自动对焦。 ％ ％DATAIN ISAR范围内的实时数据。 DATAOUT％范围内的实时数据已被删除平移 ％相位误差。 ％ ％参考： ％D.E.瓦尔，P.H.艾歇尔，特区吉利亚，C.V. Jakowatz，“相 ％梯度自聚焦一个强大的工具，用于高分辨率SAR相 ％修正“，硕士论文。航空。＆电子系统，第30卷，3，1994。(function [dataout]=PGA(datain) performs phase gradient autofocus of ISAR. datain is range-time data of ISAR. dataout is range-time data that have been removed translational phase error. Reference: D.E. Wahl, P.H. Eichel, D.C. Ghiglia, C.V. Jakowatz, "Phase gradient autofocus-a robust tool for high resolution SAR phase correction," IEEE Trans. Aero. & Elec. Sys., vol. 30, no. 3, 1994.)