spectrum generator 中文意思是什麼
spectrum generator
解釋
頻譜發生器-
Series of general - purpse instruments : including series of 2800 and 2500 electronics compoment parameters testing meter and related products ; series of 1630 function signal generator ; 1250 ultralow frequency spectrum analyzer and signal generator
通用類儀器系列:包括2800系列、 2500系列元件參數測量儀及其配套產品; 1630系列函數信號發生器; 1250超低頻系列頻譜分析儀及信號源。 -
Spread spectrum code - sequence generator
擴頻碼序發生器 -
Spectrum analyzer tracking generator which extends operation over 1 ghz frequency range 0. 15 to 1050 mhz
基礎上發展而來的,它的頻率范圍超過1ghz 0 . 15mhz 1050mhz -
The waveform generator output many analog waveforms. besides, the waveforms were tested by a kind of spectrum analyzers
經過硬體軟體調試,產生多種波形輸出,同時用頻譜測試儀對輸出波形進行了測試。 -
The resonance - enhanced multi - photon ionization ( rempi ) spectrum of no in the region of 420 - 680nm is obtained by using optical parameter generator and amplifier ( opg / opa ) as radiation source. the opg / opa was pumped by nd : yag ( quantel ) laser
本工作以超短脈沖( 35ps ) nd : yag激光的三倍頻輸出( 355nm )泵浦光學參量發生放大器作為激發源,獲得了no分子在420 680nm波長范圍內的多光子共振離化光譜。 -
Study on rotor stator impact fault diagnosis in turbo - generator based on the singular spectrum theory and wavelet transform
汽輪發電機組動靜碰摩的奇異譜理論與小波分析診斷方法研究 -
In this disseration the author researched the testing of gsm mobile telephone of the wireless instrument test and carried out it. the work that i shoud do is acquire the testing content 、 standard and method of test of the gsm mobile telephone, then write the driver program of the cmu200. first acquaint the communication system of gsm ; second introuced and analysized the technology of the software and hardware of control the programmable instrument, which include ieee 488 ( gpib ) standard bus 、 scpi ( standard commands for programmable ) and visa ( virtual instrument system architecture ) ; third reaserach the technology of software, it employs visual c + + 6. 0 as application development platform because of its powerful function, universality and programming and employs com module because of its characteristic 、 superiority ; the last ascertain the testing item and its standard 、 mehtod through searching the principle of gsm mobile and its testing criterion and select the programble instrment for testing according to the mobile telephone demands, which include cmu200 ( universal radio communication tester ) 、 e4445a ( spectrum analyzer ) 、 e4438c ( signal generator ), all of this build the platform of testing. i realize the automatic testing of gsm mobile telephone by using com module and visa 、 scpi
論文中首先了解了gsm通信系統及其關鍵技術;再者研究分析了可編程儀器控制的軟硬體技術,包括ieee488 ( gpib )標準總線、 scpi ( standardcommandsforprogrammableinstruments可編程儀器標準命令)和visa ( virtualinstrumentsystemarchitecture虛擬儀器軟體架構)為對可編程儀器進行驅動編程打下基礎;第三步研究了軟體實現技術,對組件的優勢和com的特點進行了分析確定採用com組件技術來完成驅動模塊;最後根據移動臺測試要求選擇可編程測量儀器cmu200綜測儀、 e4445a頻譜儀、 e4438c信號源和一臺測量控制計算機搭建起了測試平臺,研讀可編程儀器cmu200綜測儀的scpi命令和visa (虛擬儀器軟體架構) ,根據gsm移動臺測試方法在vc開發平臺下採用com組件形式完成對cmu200的驅動編程從而實現對gsm移動臺的自動測試。 -
Design and analysis of three kinds spread spectrum number generator based on ds - cdma
的三種擴頻序列發生器的設計與分析 -
In order to supply the actual bpsk ds - ss signal to verify the algorithms, this dissertation present a design method of spread spectrum signal generator with adjustable muti - parameter in detail
為了給驗證演算法提供現實的bpsk調制的直接序列擴頻信號,本文詳細介紹了一種多參數可調的擴頻信號源的設計方案。
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