矩形检测-图像分割

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

implement fourier transform by matlab

说明：  运用物理光学法和矩量法计算带罩天线的远场辐射。(use of optical physics and Moment Method band antenna covers the far field radiation.)

关于DTI图像去噪方法的实现和研究的论文(About DTI image denoising research papers)

数学建模常用算法的MATLAB程序,在全国数学建模比赛中能使用!(MATLAB OF MATHMATIC,SOME EXAMPLE YOU CAN USE)

C,C++ Questions 1. Base class has some virtual method and derived class has a method with the same name. If we initialize the base class pointer with derived object,. calling of that virtual method will result in which method being called? a. Base method b. Derived method.. Ans. b 2. For the following C program #define AREA(x)(3.14*x*x) main() {float r1=6.25,r2=2.5,a a=AREA(r1) printf(" Area of the circle is f", a) a=AREA(r2) printf(" Area of the circle is f", a) } What is the output? Ans. Area of the circle is 122.656250 Area of the circle is 19.625000 3. What do the following statements indicate. Explain. • int(*p)[10] • int*f() • int(*pf)() • int*p[10] Refer to: -- Kernighan & Ritchie page no. 122 -- Schaum series page no. 323

产生两个均值为m,方差为sgma的高斯随机变量，当输入参数只有一个时，认为均值为0。(mean to have two m, sgma variance for the Gaussian random variables, when only one input parameters, that the mean of 0.)

multipath signal description with read technique

用matlab进行二级倒立摆摆仿真，进行极点配置 (Two inverted Swing simulation using matlab and pole placement)

This file shows simple pam code source on DTV Equalizer.