電擴聲器 的英文怎麼說
中文拼音 [diànkuòshēngqì]
電擴聲器
英文
electrical megaphone-
The algorithm can not only eliminate the influence of the cumulative errors of the photoelectric code recorder, but also it can satisfy the requirement of the real - time control. a direct inverse model controller of fuzzy neural network with changeable structure based on takagi - sugeno inference is presented and it is used to the motion control of mobile robot. in order to avoid the obstacles successfully, detection results from ccd and ultrasonic sensors are fused by a fuzzy neural network, which acts as an avoidance controller
包括移動機器人的融合自定位問題：移動機器人利用光電編碼器進行自定位，同時用擴展卡爾曼濾波器融合多個超聲波傳感器的測量值，採用回朔演算法將融合值用於復位光電編碼器，消除了光電編碼器累積誤差的影響，並能滿足實時控制的要求：並提出一種基於takagi - sugeno模型的變結構模糊神經網路直接逆模型控制器，並應用於移動機器人的運動控制；利用模糊神經網路避障控制器融合ccd攝象機與超聲波傳感器探測到的環境信息，以實現機器人的安全避障。In both radio and television receivers, once the basic signals have been separated from the carrier wave they are fed to a loudspeaker or a display device ( usually a cathode - ray tube ), where they are converted into sound and visual images, respectively
在無線電和電視兩個接收器中，一旦基本信號與載體電波分離，即被供于擴音器或顯示設備（通常是陰極攝像管） ，在那裡它分別被轉換成聲音和可視圖像。Maritime navigation and radiocommunication equipment and systems - digital interfaces - single talker and multiple listeners, high - speed transmission
船舶導航和無線電通信設備及系統.數字介面.高速傳輸單擴音器和多聽聲器In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on
本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題，在此基礎上，從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性，並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋；本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案，即由用戶終端、集中器和電能管理系統所組成的網路系統，其中，用戶終端到配變集中器用低壓電力線作為通道，中間無需其他硬體中繼設備，集中器到電能管理系統用公用電話網作為通道。Electroacoustics - simulators of human head and ear - part 2 : an interim acoustic coupler for the calibration of audiometric earphones in the extended high - frequency range
電聲學.人頭和耳模擬器.第2部分:在擴展高頻范圍內測聽力耳機校正用間歇聽力偶合器En60318 - 2 electroacoustics. simulators of human head and ear. part 2 : an interim acoustic coupler for the calibration of audiometric earphones in the extended high - frequency range
電聲學.人頭部和耳朵的模擬器.第2部分:在擴展高頻范圍內校準測聲耳機用的間歇聲音耦合器The basic operation principle of phase - locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper. the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply. the research is emphased on the theory and design method of circuits in the sampling phase - locked frequency synthesizer. then, the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits. at last, the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling - holder. the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product
本文系統的闡述了鎖相頻率合成器的基本工作原理及電路類型；較深入地分析了取樣鑒相工作原理及電路、鎖相環路的線性跟蹤特性和相位噪聲特性；重點對取樣鎖相頻率合成器電路理論和設計方法進行了研究；為了改善環路的捕獲性能，對擴捕電路進行了分析和設計，並用wewb32軟體對電路進行了模擬；考慮到取樣保持器的附加相移影響，對環路濾波器進行了分析和設計。And designed a program used by this method to design a filter. the result complies with the analytic result. at the end of this paper, according to the project of airline broadcast, the author designd filter with high rectangular factor, five channelizing filter banks, saw programmable correlator implemented with multiplayer muti - chip technology, saw resonator
本文的最後，結合某航空直擴數傳電臺的工程要求，設計了高矩形系數的前置濾波器、聲表面波濾波器組、採用多晶元組裝厚膜工藝技術的聲表面波可編程相關器和聲表面波壓控振蕩器，完成了解調解擴單元的硬體設計。Company produce the high quality remote controls and also produce other electronic products such as amplifier, filter, usb remote and receiver set, telephone amplifier, video transceiver and so on. the factory adopts a high standard control management and is supported by a world - class research team
除萬能遙控器外本公司也生產多項電子產品：擴大機電視訊號濾波器聲音無線傳輸電話擴音器電子安定器人體感應器發射接收器設計製造生產等。An instrument that converts sound waves into an electric current, usually fed into an amplifier, a recorder, or a broadcast transmitter
擴音器，麥克風，話筒將聲波轉變成電流的工具，通常接至擴音器，錄音機或廣播發射機上2g : in 1989, two technologies from the " world of sound studio " are combined on a pc expansion card for the first time : fm synthesis made famous by yamaha synthesizers and 8 - bit pcm pulse code modulation at 11. 25 khz. for a long time, " soundblaster " becomes synonymous with the term sound card, and the first step toward the pc as " multimedia machine " was taken
11989年，兩項由world of sound studio發展出來的新科技首次被結合在個人電腦的擴充卡上：因為yamaha音源合成器以及8 - bit pcm pulse code modulation at 11 . 25 khz的興起，使得fm音源成為這時期的主流，使用fm音源的聲卡聲霸卡soundblaster幾乎成了該產品的代名詞。Data already often move between electronic and photonic forms at the periphery of a computer system, on their way to or from a cd or dvd, display monitor, mouse, camera, stereo amplifier or fiber - optic network
在電腦系統的周邊設備里，資料已經常在電與光的形式間變換，例如進出cd或dvd 、顯示器、滑鼠、照相機，立體聲擴大機或是光纖網路。Fig. 3 integrated wind profiler and rass at sha lo wan. the rectangular antenna in the middle transmits and receives radio waves
中間的長方形天線作用是發放和接收無線電波，周邊的四個圓柱形擴音器則向空中發出聲波。Simulator presented in this paper provides a direct interface for the test of shortwave communication system, which well represents various features of hf channel such as multi - path delay, rayleigh fading, doppler shift, doppler spread, gaussian noise and impulsive interference, etc. in order to realize the channel simulation for the intermediate frequency signal, we, inspired by the idea of soft - defined radio, bring forward a new design method that the channel simulator consists of several dsp chips
本文研製的模擬器提供介面直接對短波通信系統進行測試，能夠全面反映短波通道的多徑時延、瑞利衰落、多普勒頻移、多普勒擴展、高斯噪聲和脈沖干擾等特性。為了實現對中頻信號的通道模擬，開發出一個結合軟體無線電思想的由多個數字信號處理晶元構成的短波通道物理模擬器。分享友人