sigma

采用SMI算法的零陷波束形成器，有详细的注解，可更改参数(SMI algorithm using Null Beamformer, detailed comments, can change the parameters)

在matlab中构成不同频率的调制信号，这些函数都是以fm开头，产生常数、双曲线、线性、抛物线等频率调制信号．(in Matlab, constitute a different frequency modulation signal, these functions are beginning to fm, have a constant, hyperbolic, linear, parabolic and other frequency-modulated signal.)

递推最小二乘算法，只适合单入单出，用于建模中的参数辨识，(Recursive least squares algorithm, Single Input Single Output, parameter identification)

因此假设了一种机动目标模型：初始匀速直线阶段、匀速圆周运动阶段、返回匀速直线阶段，在此过程中线速度大小?v?保持不变。利用扩展卡尔曼（extended kalman filter, EKF）滤波算法进行定位跟踪，仿真结果表明，该假设模型既符合机动实际，又便于数学处理，并且滤波算法过程稳定，具有较快的收敛速度和较高的定位精度，提高了机动目标跟踪的精度和系统的实时性。(This paper proposes a maneuver target model: the initial phase of the uniform linear, uniform circular motion stage, returning to uniform linear stage, and the size of the line speed v remaining unchanged in this process. The extended Kalman filter (EKF) was used to track position, and simulation results show that the model is in line with the actual motor and easy to deal with the mathematics. The algorithm is stable and has rapid convergence rate and high positioning accuracy to improve the accuracy of the mobile target tracking and real?time system.)

通过斜投影对空间相干目标进行DOA估计，非相干信号通过MUSIC算法估计，然后斜投影估计相干信号DOA。(DOA estimation of spatially coherent targets is made by oblique projection, and the incoherent signals are estimated by MUSIC algorithm, and then the oblique projection is used to estimate the coherent signal DOA.)

自由光通信中，采用4ppm调制，VBLAST编码的译码算法(Free optical communication, the use of 4ppm modulation, VBLAST encoding decoding algorithm)

四旋翼飞控板程序，能够控制飞机平稳飞行，简洁易懂。(Four-rotor flight control board procedures, able to control the aircraft stable flight, easy to read.)

gslx680 rockchip 源码 兼容gsl1680,gsl1680E，gsl2680.gsl2682,gsl3680,gsl3680B,gsl3670(gslx680 rockchip source)

说明：  基本的直方图绘制方法： （1）直方图的绘制； （2）直方图均衡化(The basic method of drawing histogram: (1) Draw the histogram (2) Histogram equalization)

双历元GNSS辅助SINS动态初始对准方法，获得初始时刻的位置、速度、姿态等的信息。含有初始对准程序以及测试程序，四元数计算程序(Dual Dynamic epoch GNSS assistance SINS initial alignment method to obtain the initial time position, velocity, attitude and other information. Containing the initial alignment procedures and testing procedures, quaternion calculation program)