xiandaitongxinxit

a perceptron algorithm for neural network

参考3GPP相关标准并根据LTE技术特征和关键特性，对下行链路级进行设计，包含以下步骤：比特生成、CRC校验、码块分割、编码、速率匹配、码块级联、加扰、调制、层映射、预编码、资源映射、OFDM符号生成和天线映射。为模拟无线传输信道，还需仿真相应的信道模型。收端则是发端的严格逆过程，对接收信号进行一系列处理，得到代表原始发送的信息并判决。(References 3GPP LTE technology standards and in accordance with characteristics and key characteristics of the downlink stage design, comprising the steps of: generating bits, CRC checksum, code block segmentation, encoding, rate matching, code block concatenation, scrambling, modulation , layer mapping, precoding, resource mapping, OFDM symbol generation and antenna mapping. Analog wireless transmission channel, the need to emulate the corresponding channel model. The receiving end is the inverse of the originator of the rigorous, a series of processing the received signal, the representation of the original transmitted information and judgment.)

Sep protocol in wireles sensor network

通信系统中，采用QPSK调制方式，对瑞利衰落信道的仿真(By using QPSK modulation, simulate the Rayleigh fading channel in communication system)

针对阵列波束形成问题，研究干燥比对输出信噪比的影响。(For array beamforming problem, the code simulates the effect of the INR on the SNR. )

语音分帧程序，对一个语音信号进行分帧，并研究分帧后的短时能量和过零率特性(Voice framing procedures, a voice signal framing, and to study the sub-frame after the short-term energy and zero crossing rate characteristics)

matlab关于解偏微分方程的教程 里面有很多例子和程序供读者学习(Matlab on the solution of partial differential equations. There are many examples and procedures for the readers to learn)

基于贝塞尔函数的虚拟阵列的角度估计，实现宽带信号的DOA估计(Based on the angle of the Bessel functions of the Virtual Array estimated broadband signal DOA estimation)

关于matlab仿真通讯系统的文章，主要是一些基本的概念，对初学者特别有用，能纠正模糊不清的概念(The simulation of MATLAB communication system of the article, mainly some basic concepts, particularly useful for beginners, can correct the vague concept)

使用matlab实现背景和前景分离，运动目标跟踪识别，一个很不错的程序(Using matlab to achieve separation of background and foreground, moving target tracking and recognition)