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LSE algorithm in OFDM channel estimation

采用EM，期望最大方法，估计QPSK调制方式下的信噪比(Using EM, expectation maximization method to estimate the signal to noise ratio under QPSK modulation)

Traditional police boundaries—precincts, patrol districts, etc.—often fail to reflect the true distribution of criminal activity and thus do little to assist in the optimal allocation of police resources. This paper introduces methods for crime incident forecasting by focusing upon geographical areas of concern that transcend traditional policing boundaries.

说明：  对图像形态学膨胀腐蚀运算，可以有效提取边缘。并有很强的抗噪能力。(Morphological dilation and erosion operations on images, you can effectively extract the edge. And have strong anti-noise ability.)

Simulates BER of BFSK in AWGN channel

This file includes QPSK mapping function.

This is a matlab code to find out the area of a triangle by giving the necessary information .

concttuc one matrix using matlab

matlab实现小波构造 matlab实现小波构造 (matlab matlab implementation to achieve wavelets Wavelets)

在MATLAB中对超宽带波形设计中产生其前十五阶导数的仿真程序及多径传播的仿真程序(In MATLAB, the design of ultra-wideband waveform generation derivative of its first fifteen simulation program and multi-path propagation of the simulation program)