This essay researches the wireless receiver system to the digital front - end components 本文以無線通信接收系統(tǒng)中的數(shù)字前端部分為研究對象。
To create this product , we bore a bottom hole into the metal using a sharp drill bit while simultaneously carrying out tap processing 該機能的秘訣是采用全冷間鍛造前端部分。利用鉆頭尖銳的頭部往金屬上面打洞,同時進行螺紋加工。
Chapter 2 presents the advantages and indispensibility of the mhp platform firstly , then focuses on the principles and implementations of each modules . in chapter 3 , we proposed a dvb system applied to hfc networks , which satisfied the mhp platform 第三章首先針對家庭多媒體平臺的需求構(gòu)建出一套應用在hfc網(wǎng)絡(luò)上的dvb系統(tǒng),然后對系統(tǒng)中滿足終端需求的前端部分的相關(guān)技術(shù)進行描述。
The subject derives from the project of " 0 . 1m ~ 3000mhz universal receiver " , which is collaborated with ministry of science and technology of prc and chengdu sine science and technology ltd . undertake the rf front end in this project . the rf front end is divided into two separate parts , the 0 . 1 ~ 30mhz & the 30m ~ 3ghz rf front end 本課題來源于國家科技部創(chuàng)新基金項目: 0 . 1m 3ghz通用接收機,成都賽英科技有限公司負責射頻前端部分的研制,該射頻前端分為0 . 1m 30mhz和30m 3ghz兩大部分,筆者負責30m 3ghz部分射頻前端的研制。
To the hardware , the design is composed of two parts : the one is the part of data acquisition and wireless data sending and the other is the part of wireless data receiving and the interface circle of universal serial bus . to the functional model , the design is composed by the data acquisition , the wireless data transmission , the interface of universal serial bus , the device ' s driver and the application 本系統(tǒng)從硬件結(jié)構(gòu)可分為兩部分:數(shù)據(jù)采集及無線發(fā)送前端部分和無線數(shù)據(jù)接受及通用串行總線接口電路部分;從功能模塊結(jié)構(gòu)上可分為:數(shù)據(jù)采集模塊、無線數(shù)據(jù)傳輸模塊、通用串行總線接口模塊以及設(shè)備驅(qū)動程序和應用軟件模塊。