follow

turbo均衡的一种算法修改的MMSE算法对深刻理解TE很与帮助。(turbo balanced an algorithm modified MMSE algorithm is with a deep understanding of TE help.)

本科论文，有限元法求解对流扩散方程。文后有附带的程序，适合入门使用！可以对照文章内容，学习程序!(A paper for FEM.)

说明：  对输入信号进行量化，n为你想要的量化级数；可输出量化前后信噪比，量化后信号，和量化后的二进制序列(Quantize the input signal, n is the quantizing series you want; output the signal-to-noise ratio before and after quantizing, the quantized signal, and the quantized binary sequence)

说明：  BER Probability for QAM

非常流行的iOS 下的 3d 开发引擎。

说明：  经典无线链路预算模型，预测了在自由空间中由地形的非规则性造成的中值传输衰落。该模型适用于频段为20MHz至40GHz、路径长度为1km至2000km的情况。对于给定的传输路径，该计算机程序通过频率、路径长度、极化方向、天线高度、表面绕射率、地面有效半径和地面导电常数等参数可以确定传输损耗的大小。(Classic wireless link budget model, forecasts the in free space caused by terrain of regularity in the value decline.The model is suitable for the frequency of 20 MHZ to 40 GHZ, path length of 1 km to 2000 km.For a given transmission path, this a computer program can calculate the value of the transmission loss by frequency, path length, polarization direction, antenna height, surface diffraction, effective radius of the ground and ground conductivity constant parameters and so on.)

说明：  设计一个巴特沃兹数字低通滤波器，其技术指标为：3dB带宽为0.2π，阻带截止频率为0.3π，通带纹波为1dB，阻带衰减大于30dB，采样间隔T=10ms。 1）采用冲激响应不变法； 2）采用双线性变换法设计； 3）采用FIR的窗函数（Hanning窗、Hamming窗或Blackman窗）设计。(A Butterworth digital low-pass filter is designed. Its technical specifications are: 3 dB bandwidth is 0.2 pi, stopband cut-off frequency is 0.3 pi, passband ripple is 1 dB, stopband attenuation is more than 30 dB, sampling interval T=10 Ms. 1) Impulse response invariance method is adopted. 2) Design by bilinear transformation method; 3) FIR window function (Hanning window, Hamming window or Blackman window) is used to design.)

MATLAB编写的GPS 信号的产生捕获程序(MATLAB prepared by the GPS signal capture the selection procedures)

水下航行器协调控制技术中航行器跟踪避障控制(Underwater vehicle coordinated control technology in the aircraft track obstacle avoidance control )

实现信号的上变频和信号的下变频，经过仿真实验后确定正确。(Signal up-conversion and signal down-conversion, and after a simulation to determine the correct.)