I analysis the undermodulation,total modulation and over modulation.And the power distribution ,spectrum.you can understand the basic of am.
標簽: modulation undermodulation distribution the
上傳時間: 2013-12-17
上傳用戶:sevenbestfei
這是利用matlab7.0軟件對通信信號進行調制simulink仿真,它包括am,pm,fm,ask,psk,fsk,qpsk等調制方式,有利于學生自學和老師教學!
上傳時間: 2016-05-07
上傳用戶:hanli8870
以SPCE061A單片機為核心,通過DDS合成技術設計制作了一個步進值能任意調節的多功能信號源。該信號源在1KHz~10MHz范圍能輸出穩定可調的正弦波,并具有AM、FM、ASK和PSK等調制功能
上傳時間: 2014-01-12
上傳用戶:daoxiang126
Der Aufbau eines kleinen Frequenzzä hers ist dank der heutigen Atmel AVR Controller oder aber auch der Mikrochip PIC Controller (um nur zwei zu nennen) relativ schnell und einfach aufzubauen. Dazu werden meist die internen Timer/Counter des Controllers benutzt. Der Counter wird durch das anliegende Signal am Takteingang hoch gezä hlt. Durch den Timer wird dann der Counter zu einen festgelegten Zeitpunkt stetig ausgelesen und zurückgesetzt. Nehmen wir mal an ein 20Hz TTL-Signal taktet den Counter so steht nun im Counterregister nach einer Sekunde der Wert 20. Dieser wird nur noch auf dem Display oder serielle Schnittstelle ausgegeben. Nach einer erfolgreichen Auktion bei einen einschlä gigen Internet Auktionshaus, erwarb ich einige 7Segment Anzeigen, hierfür musste ich mir etwas einfallen lassen. Heraus kam somit ein besagter kleiner preiswerter 50MHz Frequenzzä hler, den ich nicht vorenthalten will.
標簽: Controller Frequenzz heutigen kleinen
上傳時間: 2016-06-10
上傳用戶:1583060504
matlab仿真源代碼,AM源程序,用matlab運行
上傳時間: 2016-06-29
上傳用戶:zhliu007
his an ecapsulation of the ICS - Internet Component Suite. ICS can be found at : http://users.swing.be/francois.piette/indexuk.htm Please take the time to look at the code and learn something. If you re a Dephi Pro, you can probably give me some tips as I am still new to Delphi programming.
標簽: ecapsulation ICS Component Internet
上傳時間: 2013-12-22
上傳用戶:epson850
This project allows you to learn communication systems in greater depth. It contains the Simulink files (*.mdl) which are block design files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM and Delta Modulation. The idea here is to implement experiments of a traditional communication lab using Simulink. Most of the block diagrams are self explanatory. More information on the systems and their implementation can be found in the word documents included in the lab directories
標簽: communication Simulink contains project
上傳時間: 2013-12-09
上傳用戶:lz4v4
This a very simple baseband simulator for SC-FDMA system. This simulator is part of the upcoming book “Single Carrier FDMA: A New Air Interface for Long Term Evolution” (Wiley, Nov. 2008) which I co-authored with professor David J. Goodman at Polytechnic University. The purpose of this simulator is to give some concrete idea of how SC-FDMA system works. It does lack many realistic and sophisticated features such as channel coding, time-varying fading channel model, soft decision decoding, etc. Regardless, I am hoping that it will help you understand SC-FDMA which is a fairly new development in 3GPP LTE.
標簽: simulator This baseband upcoming
上傳時間: 2016-08-26
上傳用戶:小草123
You may have heard the Latest Brief web service on CodeProject.com. It provides several methods for web client programs to retrieve information about CodeProject.com, such as the latest article updates, the latest comments, and the latest lounge posts, etc. Some very popular articles on the CodeProject site make use of this service. In this article, I am going to present a java client program that uses soap message to call the methods of this web service. My program is not a general java soap client, which means you cannot use it to call other web services directly. However, you can easily modify it for other web services. The program uses only basic Java, it does not depend on any other external class library.
標簽: CodeProject provides service methods
上傳時間: 2014-01-25
上傳用戶:baiom
主要是對幾種常用的模擬調制進行了matlab實現,包括AM,LSB,USB,DSB,DSB信號
上傳時間: 2016-12-06
上傳用戶:gxf2016