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Y847565
- 提高卫星通信信道传输效率的新途径本 文 结 合 V SAT卫星通信系统设计中涉及卫星通信传输技术极为重要的 信道编码与调制解调方式,探讨了各种新型的卫星信道编码与调制解调技术, 它们的原理及在卫星通信中的应用。在数字调制中,信号传输质量主要取决于 比特差错率BER (Bit Error Rate),因此要尽可能采用相同的每比特信号能量与 噪声功率谱密度比(Eb/N.)的条件下,BER低的调制方式,以节省卫星功率 另外频带利用率要尽可能的高,以节省宝贵的卫星频带。本文还对各种
wzq
- 用c++实现两人在电脑屏幕上下五子棋,其游戏规则如下: 1.每1步输入要下棋子的格子的x,y坐标,按Enter键 2.有1方首先5个棋子连成一线即判获胜 3.当旗子布满棋盘但仍无获胜方即为平局 4.一局结束后,若想继续按Y键,若退出则按其他键 5.若想中途退出游戏,请输入(0,0),再按照提示保存游戏 6.并且有悔棋键(不一定能实现) 7.可以选择X方先行或O方先行 设计要求: 1.屏幕上含有一些美丽的图案,比如笑脸、五角星等。 2. 棋到中
OMNeTbasedsatelliteposecontrolsimulation
- 针对三轴稳定卫星的姿态控制系统,在离散事件仿真平台OMNeT ++的 基础上,建立了一个以星敏感器和陀螺为敏感器,反作用飞轮为执行机构的闭环 控制仿真系统。采用双矢量定姿算法和P ID控制算法,对该卫星在对地定向模 式下的控制精度进行了仿真。仿真结果清晰地反映了星敏感器和反作用飞轮输 出延时对控制精度的影响。整个仿真系统符合面向对象和模块化的程序设计理 念,并实现了仿真程序的重用。-For the three-axis stabilized satellite attitu
wxck
- 本文提出特征参数统计值的概念,即对连续的多段信 特征参数后,所求取的多组参数中各参数的最大值、最小值及二 以此作为输入参数,利用基于BP神经网络和决策理论的模式识 星统一载波测控体制中典型的调制方式进行了识别,包括2FSK )、4FSK、BPSK、QPSK、MSK、PM、CW-In this paper, the concept of characteristic parameters of statistics, that the letter of the continuou
[Arduino-A-Quick-Start-Guide-1st
- 创建有用的设备,充满了的乐趣,这个快速入门指南将帮助你用三轴加速度计建立你自己的动作感应游戏控制器。然后,您将用Arduino和一些便宜的部件为您的电视机或Mac创建一个通用遥控器。 Arduino是一个完美的平台,通过它建立网络设备 - 您将学习如何将它连接到互联网和客户端程序和服务器应用程序。在一个动手项目上,你会建立你自己的防盗报警器,每当有人进你的起居室就更新你的Twitter回馈。其他项目会告诉你如何将任天堂的Wii Nunchuk融入您的项目。 贯穿全书的侧边栏指引你到令
fieldbustutorial
- Field bus is the name of a family of industrial computer network protocols used for real-time distributed control, now standardized as IEC 61158.A Field bus is a digital, bidirectional, multi-drop, serial-bus communication network.Replaces the existi
an857
- In this example there are three electromagnetic circuits connected at a common point. Each electromagnetic circuit is split in the center, thereby permitting the permanent magnet rotor to move in the middle of the induced magnetic field. Most
star_tree_allerton
- We consider the problem of grooming traffic in WDM star and tree networks to minimize equipment cost. We prove an important result regarding wavelength assignment in both topologies. We present a series of lower and upper bounds on the optimal so
WTG2004-Chen
- We study the traffic grooming problem on WDM networks with the physical topology of a star. In star networks, several nodes are connected to a single hub directly through a bi-directional optical fiber, but are not connected to each other. Pr
ltest_rob.m
- Robust version of the linearity test against a Logistic STAR specification. The test is based on the third-order Taylor series expansion of the logistic function arounf the null hypothesis.
ee2302-qb
- 1. A 5 MVA, 10 kV, 1500 rpm, 3 phase, 50 Hz, 4 pole, star connected alternator is operating on infinite bus bars. Determine the synchronizing power per mechanical degree of displacement under no-load condition. Xs = 20 .-1. A 5 MVA, 10 kV, 1500 rpm,
Unit1-VH
- 1. A 5 MVA, 10 kV, 1500 rpm, 3 phase, 50 Hz, 4 pole, star connected alternator is operating on infinite bus bars. Determine the synchronizing power per mechanical degree of displacement under no-load condition. Xs = 20 .-1. A 5 MVA, 10 kV, 1500 rpm,
IAP
- 这是云星宇STM32上的类似于AVR的bootloader的程序工程,亲测可用。(This is a program program similar to AVR bootloader on Cloud Star STM32, which is available for pro test.)
