Frequency modulator demodulator trainer 頻率調(diào)制調(diào)解學(xué)習(xí)套件
Sawtooth frequency modulator 鋸齒波調(diào)頻器
Thirdly , give the way to how to design the digital mid - frequency modulator , discuss the design process of the system , and give the block diagram of it 其次,對遙測仿真組合子系統(tǒng)中的數(shù)字中頻調(diào)制器的設(shè)計(jì)作了分析。給出了系統(tǒng)設(shè)計(jì)的過程與整個遙測仿真子系統(tǒng)的系統(tǒng)框圖。
It analyze the performance index of the mid - frequency modulator firstly , abased this , analyze the design of it , which include the agc circuit 、 dds circuit 、 and so on . fourthly , discuss how to realize the digital mid - frequency modulator 在分析了中頻調(diào)制器所要求的性能指標(biāo)的基礎(chǔ)上,對數(shù)字中頻調(diào)制器進(jìn)行了工程設(shè)計(jì)分析,包括agc電路設(shè)計(jì)、 dds方案選擇等。
This dissertation use rebuild of combined telemeter system , which is the subsystem of the red - nine system developed by the aerospace measure and telecommunication incorporated company , as background , study and discuss frequency synthesize technology . the mostly task is to study how to use the direct digital synthesis technology to design and realize the high speed digital mid - frequency modulator , and give the answers of the problems which emerge in the development 本文以某測通公司研究生產(chǎn)的“紅九”系統(tǒng)中遙測仿真組合子系統(tǒng)為背景,對其中的數(shù)字中頻調(diào)制器的研究開發(fā)進(jìn)行探討,主要任務(wù)是研究如何用直接數(shù)字合成技術(shù)進(jìn)行高速數(shù)字中頻調(diào)制器的設(shè)計(jì)與實(shí)現(xiàn)、并提出了研發(fā)過程中所出現(xiàn)的問題的解決方案。