base amplifier 中文意思是什麼
base amplifier
解釋
普通放大器-
On the base of the familiarity with the working capacity of every unit the section is one of the main content of the task including the debugging motor servo amplifier servo controller and the whole hardware system ( 5 ) programming on the base of the above work, programming to control the system with mint
控制系統硬體部分的調試。在熟悉各元件工作性能的基礎上，通過大量的實驗，找到正確的連接方法，使硬體系統正常工作。這一部分是本課題的主要內容之一，主要包括對電機、伺服放大器和伺服控制器的調試，以及對整個硬體系統的訝試。 -
Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system
測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。 -
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
Biology and chemislry etal ln thi s dissertation, the theory of femto - second pulse laser amplifier system using tifsapphire crystal was discussed systematically and many methods were brought fonvard to resoive the probably existed problems in each part of the system base d on the achieved results, experimentai works has further developed
本文系統給出了以鈦寶石晶體做為增益介質和放大介質的飛秒激光脈沖放大系統理論，針對各部分可能出現的問題提出了相應的解決方法，並在此基礎上開展了部分實驗工作。 -
Secondly, the mmic 20 - 40ghz hmmc - 5040 amplifier is used to realize the phemt frequency converter. the feasibility of up / down converter using phemt sub - harmonic mixing is validated by the experimental results. at last, on the base of phemt multiplying, amplifying and gate mixing, the
之後研究了採用hp公司的20 - 40ghz放大器晶元（ hmmc - 5040 ）設計製作phemt （ pseudomorphichighmobiletransistor ）變頻器，通過測試，給出了實驗結果，並通過實驗驗證了採用phemt二次諧波混頻模式，實現上下混頻的可行性。 -
( 5 ) from august, 2002 to april, 2003, on the base of analyzing of 10kw valve tv transmitter of channel 14, chongqing tv transmitting station, brought forward process the solidification scheme to 400w valve power amplifier of the driver
重慶大學碩士學位論文中文摘要（ 5 ） 2002年8月至2003年4月期間，在對重慶電視發射臺14頻道（ uhf ） 10kw電子管電視發射機進行研究分析的基礎上，提出了對該機末前級400w電子管功率放大器進行固態化改造的方案並予以實施。 -
On the base of summarizing and reference to the achievement of uhf complete solid - state high - frequency power amplifier abroad, the author have made a deep research in uhf 10kw electron tube tv transmitter power amplifiers which are widely used inland, and asked for ideas of a lot of engineers of chongqing tv transmitting station, brought forward a practicable solidification scheme under the guidance of prof. gao chao and prof. guoyongcai, and made a successful practice at chongqing tv transmitting station
筆者在總結和借鑒國內外有關uhf全固態電視發射機高頻線性功率放大器研究成果的基礎上，對目前國內電視發射臺普遍採用的uhf10kw電子管電視發射機高頻線性功率放大器進行了深入研究，並廣泛徵求重慶電視發射臺工程師的意見，在重慶大學高潮教授和郭永彩教授的指導下，提出了切實可行的固態化改造方案，並在重慶電視發射臺實踐成功。 -
For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter
以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。 -
In chapter 3, the configuration of an operational amplifier is confirmed in base of the characteristic parameter, which is needed firstly, and the probable value of configuration parameter in this circuit is calculated artificially
第三章根據所要求的性能參數確定出運算放大器的結構以及手工算出電路結構參數的大概值。第四章用電路模擬軟體對第三章設計的運算放大器進行模擬分析，細調設計使之優化。 -
But homemade ratio amplifier still stays the base of step control. the stepless controlling amplifier always depends on the import
但國內在開發比例放大器方面一直停留在檔位式調節基礎上，具有連續調節式的比例放大器多依靠進口。 -
A digital base band adaptive predistortion method to compensate nonlinear distortions introduced by a high - power amplifier ( hpa ) in orthogonal frequency division multiplexing ( ofdm ) system is proposed
摘要提出了一種用於正交頻分復用（ ofdm ）系統中補償由大功率放大器引起的非線性失真的基帶自適應預失真方法。 -
This paper is focused on the design of the electronic circuits to improve the system energy resolution, including the design of the preamplifier, the shape amplifier, the base line restorer ( blr ) and the multichannel analyzer ( mca ), discussing some problems, which should be taken into account in the design
本文著重討論了電子學線路的設計對改善系統解析度的影響。包括前置放大電路、成形放大電路、基線恢復電路、脈沖幅度多道分析電路的設計及設計中改善系統能量解析度應注意的問題。
分享友人