SC_FDMA

用matlab做的一个边缘侦测,包含Sobel,Prewitt,Roberts,Marr,Canny算子的边缘侦测程序.(Using matlab to do an edge detection, including Sobel, Prewitt, Roberts, Marr, Canny edge detection operator procedures.)

生成不同长度、不同字母表的数据集，适合于学术实验数据的生成。(Generate different length, different data sets the alphabet, suitable for academic experimental data generation.)

本文基于matlab开发环境，利用鱼群算法对30节点的电网进行无功优化(Reactive Power Optimization Based on fish swarm algorithm in 30 node grid)

通过对二维码的3个顶点定位，扫描从而确定二维码的位置为后续解码做准备(hrough the three vertices of qr code, scan to determine the location of the qr code in preparation for the subsequent decoding )

snake 模型的MATLAB算法。可用于图形轮廓识别等图像处理方面的领域。(active contour model developed by others.It can be used in line detection and motion tracking.If someone wants to use it,please get in tough with the developer.)

Convert from latitude, longitude, and altitude (geodetic with respect to the WGS-84 ellipsoid) to a position vector in the Earth-centered, Earth-fixed (ECEF reference frame.

This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出.以第1边界条件为例,用节点处二阶导数表示三次样条插值函数,用追赶法求解相关方程组.通过Matlab编制三次样条函数的通用程序,可直接显示各区间段三次样条函数体表达式,计算出已给点插值并显示各区间分段曲线图.(Cubic spline interpolation function from the real problems of boundary conditions cubic spline interpolation is required to give the state of the endpoint. Boundary conditions in the first example, the second derivative with node represents a cubic spline interpolation function, solving equations associated with catch-up method group. preparation of common procedures cubic spline function through Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation has been calculated and displayed for each sub-interval graphs.)

matlab调用sap2000计算分析代码示例(matlab call sap2000 computational analysis code examples)

iNEDI is an acronym for "improved New Edge-Directed Interpolation". This function implements an improvement of the original NEDI technique described on: X. Li et. al., "new edge-directed interpolation". IEEE Trans. on Image Processing, Vol.10, No.10, October 2001, pp.1521-1527 (iNEDI is an acronym for "improved New Edge- Directed Interpolation. " This function imple ments an improvement of the original GaAs techn ique described on : X. Li et. al. , "new edge-directed interpolation." IEEE Tran s. on Image Processing, Vol.10, No.10, 373,890 bytes, pp.1521- 1527)