Analysis of crosstalk in mux and the grouped - layed design 中的信號(hào)串?dāng)_分析及其分組分層設(shè)計(jì)
Hardware design of net mux 網(wǎng)絡(luò)集中器的硬件設(shè)計(jì)
Mux : data path multiplexor 多重路徑數(shù)據(jù)訪問
Mux data path multiplexor 多重路徑數(shù)據(jù)訪問
2 . the design of program searching and parsing and de - mux module , which are the application software of the stb , are discussed in this dissertation . 3 利用hi2011芯片及其提供的開發(fā)軟件包進(jìn)行了有線電視數(shù)字機(jī)頂盒的應(yīng)用程序開發(fā),即節(jié)目搜索及節(jié)目提取程序的設(shè)計(jì)和解復(fù)用通道的軟件設(shè)計(jì)。
Firstly introduced the basic theory and method with which the analog signal can be convert to digital form , including sampling theory and course , quantification and quantification error , coding , beside those we discussed some applications of sampling technology , the reason of frequency mixture and the method to eliminate it chapter 4 introduced analog mux - switch , for the reason of simpleness we only introduce it briefly 從第3章開始,對(duì)數(shù)據(jù)采集的基本理論進(jìn)行討論,首先介紹了模擬信號(hào)數(shù)字化處理中的基本理論、方法,包括采樣過程、采樣定理、量化與量化誤差、編碼,還討論了幾種采樣技術(shù)的應(yīng)用、頻率混淆產(chǎn)生的原因及消除措施。第4章,介紹了模擬多路開關(guān)。
Chapter two is data sample of system . it will discuss the data conversion theory , 24bit e - a data conversion , mux - channel switch sampling technology , and emc design . among them , we will introduce the principle and application of ads 1251 , application of photomos technology in mux - channel switch sampling , and emc design with hardware and software of gas feed controller , which has good performance in reliability 第二章介紹系統(tǒng)的數(shù)據(jù)采集,該部分包括24bit -采樣原理、多路信號(hào)切換采集技術(shù)和電磁兼容設(shè)計(jì),其中,主要介紹了ads1251芯片的工作原理和應(yīng)用, photomos技術(shù)在多路信號(hào)切換采樣中的應(yīng)用,以及配氣控制器在硬件、軟件等方面所做的電磁兼容設(shè)計(jì),通過這些設(shè)計(jì)使得系統(tǒng)具有很好的穩(wěn)定性和抗干擾性。
The ca system is the main establishment of the managing digital tv broadcasting . centralized management means that using mux to manage the providing program and services in the head - end of the digital tv broadcasting and multimedia ; using subscriber management system to realize the registering , statisting , managing according to the command of users . set - top boxes ( stbs ) can realize the functions of multimedia services at the side of consumers 集約式管理是指在廣電多媒體寬帶分配網(wǎng)絡(luò)的頭端( head - end )用復(fù)用器對(duì)提供的節(jié)目或稱為服務(wù)進(jìn)行管理,用用戶管理系統(tǒng)( subscribermanagementsystem ,簡稱sms )對(duì)每個(gè)用戶的要求實(shí)現(xiàn)記錄、統(tǒng)計(jì)和管理,使整個(gè)系統(tǒng)提供的服務(wù)精確到每個(gè)終端,在用戶端用機(jī)頂盒來實(shí)現(xiàn)系統(tǒng)提供的各種多媒體服務(wù)。