instfreq

对不理想环境下信号DOA（求根MUSIC算法）的性能仿真分析。并分析其与ＭＵＳＩＣ算法的优越之处。(The signal is not an ideal environment for DOA (Roots MUSIC algorithm) of the performance simulation. And its relationship with the strength of MUSIC algorithm.)

The QSystemSemaphore class provides a general counting system semaphore for Linux.

Secon project for student learning it is very interesting for learning

本文提出了一种改进的一电平削波自相关算法，不仅从原来上分析了该算法具有良好的抗噪性能的原因，而且利用十五种不同的脚步声对该算法进行了测试，结果证明算法的有效性。(This paper proposes an improved one level clipping autocorrelation algorithm, not only from the original analyzed the resistance of the algorithm has good noise performance reasons, and Li Yong 15 kinds of different step algorithm was tested, 结果prove its validity.)

商标的matlab分割源程序。并附matlab画心函数实现程序。(Trademark matlab segmentation source. Together with Matlab painting heart function program. )

高等应用数学问题的Matlab求解范例第2版，网上全部都是第一版的，第2版的几乎没有，全部范例是亲自调试过。还包含相应的工具箱。减去你下载工具箱的烦恼。(Higher Applied Mathematics Matlab in example 2, online all the first edition, version 2 is almost all examples of personally debugging. Also contains the corresponding toolbox. Subtract your download toolbox troubles.)

根据二维空间内目标作匀速直线运动和匀速圆周运动的特点，在建立目标运动模型和观测模型的基础上采用基于交互多模算法（IMM）的卡尔曼滤波器对机动目标进行跟踪。仿真结果表明，该算法不仅能够对匀速直线运动和匀速圆周运动的目标进行跟踪，而且在运动模型发生变化时，滤波误差也比较小。 关键词：卡尔曼滤波器；目标跟踪；机动；交互多模（IMM） (two-dimensional space under target for uniform linear motion and uniform circular motion characteristics, the establishment of the target model and observations on the basis of the model based on interactive multi-algorithm (IMM) Kalman Filter right track moving targets. Simulation results show that the method can not only on uniform linear movement and the uniform circular motion of the target tracking, and the campaign model change, the filter error is relatively small. Keywords : Kalman filter; Target tracking; Mobility; Interactive multi-mode (IMM))

说明：  matlab在fpga中的应用的三个具体事例，。(matlab FPGA application in three specific examples.)

从0开始移植UCOS II到STM32开发板，十分详细的资料，讲的很清楚。手把手教学(From 0 to the UCOS II to STM32 development board, very detailed information, very clear. Hand handle teaching)

绘制风频的瑞利分布图，风速区间取在0~30m/s。(Draw up the wind frequency of the Rayleigh distribution,Wind speed range in 0 ~ 30 m/s.)