National Changhua University of Education Institutional Repository : Item 987654321/11835

English | 正體中文 | 简体中文 | Items with full text/Total items : 6507/11669
Visitors : 30417213 Online Users : 428

RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Scope Adv. Search

Login ‧ Upload ‧ Help ‧ About ‧ Administer

NCUEIR > College of Engineering > Department and Graduate Institute of Electronic Engineering > NSC Projects > Item 987654321/11835

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/11835

Title:	GMSK數據機於900MHz行動視訊電話之設計 GMSK Modem Design for Mobile Video Phone in 900MHz
Authors:	楊新雄;鍾翼能
Contributors:	電機工程學系
Keywords:	高斯最小相移鍵控;視訊電話系統;非同調解調;適應性接收機;編碼調變 GMSK;Mobile video phone;Noncoherent demodulation;Adaptive receiver;Coded modulation
Date:	1997-08
Issue Date:	2012-07-02T02:11:30Z
Publisher:	行政院國家科學委員會
Abstract:	過去認為研究binary CPM(h=0.5)在某些條件限制下，才可進行 one-bit symbol相差解調，否則必須在調變器前端加上相差預產碼器( differential precoder)，才有可能進行相差解調，本文以900MHz行動視訊電話之 Gaussian-MSK (BTT=0.5)調變器與duobinary-MSK與tamed-MSK(TFM的一種)為對象，分析其結構，發現及時不加相差預產碼器，也可進行 one-bit symbol-by-symbol相差解調，模擬結果顯示，其性能與過去方法在實用的訊噪比下完全相同，相同方法亦可推廣至其它binary CPM。
Relation:	計畫編號:NSC87-2218-E212-002; 研究期間:199708-199807
Appears in Collections:	[Department and Graduate Institute of Electronic Engineering] NSC Projects

Files in This Item:

File	Size	Format
2050200712004.pdf	133Kb	Adobe PDF	618	View/Open