登录
首页 » Others » ofdm_with_noise

ofdm_with_noise

于 2013-01-01 发布 文件大小:1KB
0 274
下载积分: 1 下载次数: 17

代码说明:

  Extremely high performance radio-access technology that offers full vehicular speed mobility and that can readily coexist with HSPA and earlier networks. OFDM/OFDMA technology is introduced for the LTE downlink, supporting very high data rates of up to 300Mbps while Single-Carrier FDMA (SC-FDMA) is used in the uplink with data rates of 80Mbps possible. Additionally, LTE supports operation both in paired and unpaired spectrum (FDD and TDD) using channel bandwidths of approximately 1.4MHz up to 20MHz. The frequency domain scheduling can be done in OFDMA. One of the main challenges in OFDMA is the high peak-to-average radio of the transmitted signal, which requires linearity in the transmitter. The linear amplifiers have low efficiency therefore, OFDMA is not an optimized solution for a mobile uplink where the

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • Alaa_ToolBox_sent
    此文档包含支持向量机程序和核函数的编写程序(This document contains the program of support vector machine and kernel programming)
    2012-05-21 09:30:45下载
    积分:1
  • ViolaJones_version0b
    Viola-Jones in Matlab 2010b for face detection
    2014-08-15 11:52:19下载
    积分:1
  • NW_net
    NW_net small world 小世界网络,运行无错误,推荐下载!(NW_net small world of small-world networks, error-free operation, it is recommended to download!)
    2013-04-17 23:11:23下载
    积分:1
  • funlun
    表示出两帧图像间各个像素点的相对情况,利用最小二乘法进行拟合多元非线性方程,包括AHP,因子分析,回归分析,聚类分析。( Between two images showing the relative circumstances of each pixel, Multivariate least squares fitting method of nonlinear equations, Including AHP, factor analysis, regression analysis, cluster analysis.)
    2016-09-12 15:41:57下载
    积分:1
  • DCT--watermark
    基于离散余弦变换的一段音频水印嵌入程序,对毕业设计有一定的帮助(A discrete cosine transform-based audio watermark embedding program, designed for graduates of some help)
    2011-04-20 18:57:54下载
    积分:1
  • 1
    基于离散余弦变换的图像去噪,小波变换去噪(Wavelet denoising)
    2013-05-17 08:28:40下载
    积分:1
  • h22
    LMS identification volterra order 2,degree 2
    2011-12-22 16:05:34下载
    积分:1
  • wm
    水面无人艇(Unmanned Surface Vehicle)的航迹控制对提升无人艇艇载设备 侦察观测效果以及多任务作战能力具有十分ffi要的意义。由于受到风、浪、流等 干扰环境影响,水而无人艇将产生六自由度的操纵运动,具有很强的非线性和随 机性。这将致使无人艇的航向航迹及姿态控制具有一定的难度,因此需要对水面 无人艇建立六自由度操纵模型,更好地实现对无人艇的控制。 采用经典的MMG分离建模思想,依托浜本刚实提出的水平附体坐标系,建 立水面无人艇的六自由度操纵运动方程。分析无人艇艇体、桨、舵所受的流动动 力和力矩,分别建立流体惯性力模型、流体粘性力模型、螺旋桨推力模型及舵机 模型。 考虑海况和气象环境的影响,分析风、浪作用于无人艇上的T扰力。将随机 风简化为定常风,建、风的干扰力数孕模型 采用傅汝德-克茁洛火(Froude - Krylov) 假设,研究规则波中无人艇受到的T扰力,述立波浪的r扰力数学投型。 在数学模型的站础上述立?于MATLAB/Simulink的仿i t校型,并进行典型的 冋转试验,分别分析不同海况下的无人艇的问转情况。无人艇丨 丨主航行时,在不 同海况下,绘制出其航速及船摇炻的变化曲线。通过总结分析,推论出多种海况 (The course and track control of unmanned surface vehicle (USV) is important to improve the observational effect of the recon reconnaissance equipment and the multi- -mission operational capability. Because of the effects of wind, wave and flow, the unmanned surface vehicle will produce six degrees of freedom movement which has randomicity and nonlinearity. It is difficult of the course, track and attitude control of unmanned surface vehicle, so six degrees of freedom movement model is built for the better control of unmanned surface vehicle. According to the classic MMG s separated modeling theory and the horizontal body axes system which was developed by Hamamoto, this thesis describes a six degrees of freedom motion equation of unmanned surface vehicle. Through analyzing the hydrodynamic force and moment, the fluid inertia force model, the fluid viscous force model, propeller thrust model and steering gear model are built respectively. Considering )
    2016-03-29 10:22:42下载
    积分:1
  • INSjs
    角增量 加速度增量 的捷联式惯导系统的 解算 程序(matlab SINS )
    2010-06-19 10:27:48下载
    积分:1
  • Chap_7
    西蒙赫金的《自适应滤波原理》一书的matlab程序,现在继续上传第7章的程序, 大家学习交流,觉得有用的自己下载,(西蒙赫payment principle of adaptive filtering, one book matlab procedure, we shall now continue From Chapter 7 of the procedure, we study the exchange of their own find useful downloads,)
    2008-04-15 11:55:00下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载