話頻制 的英文怎麼說
中文拼音 [huàbīnzhì]
話頻制
英文
voice frequency system-
This is a computerised voice communication system between pilots and air traffic controllers, and between air traffic control positions in the air traffic control centre, aerodrome control tower, rescue coordination centre and aeromobile centre by using pre - set switching and distribution of various aeronautical frequencies and direct communication lines. the new computerised system will enhance the overall efficiency in communications
讓機師與管制員之間,或航空交通管制中心、指揮塔、援救協調中心和航空通訊中心內各不同管制崗位之間,能用預先設定的系統作直接通話,包括可轉換和發布的航空通訊頻道和直接通訊線路等。Jhs series power ampilifier is a new generation equipment of teaching power amplifier, which can restrains howl and can increase plus by 6 - 10db. the distance of picking up sound can be increased to 3 - 6 meters. if only you install three or four pcs of interface mike, the scope of picking up sound can cover with all over the platform without any equipment and you can prelect
Jhs教學型數字移頻擴聲器是新一代教學擴聲設備,它能夠有效的抑制擴聲嘯叫,提高傳聲增益6 - 10db ,話筒的拾音距離提高到3 - 6米,只需在教室安裝3 - 4支界面話筒,拾音范圍就能覆蓋整個講臺,無需攜帶任何設備,即可進行講課,使演講者徹底擺脫話筒的束縛,擴大了演講者的活動范圍Cas ( communication automation system ) includes cabling system, broadband netw - ork system, mobile phone coverage system, cable tv and digital communication system
Cas通信自動化系統,綜合布線、寬頻網路、移動電話樓內覆蓋系統、有線電視及數字程式控制電話系統。In external studies of mechanism may be a feasible approach to explore biological effects of rf radiation in the case of no persuadable conclusion of epidemiological and in external studies
因此,盡早明確射頻場的作用機制從而確定流行病學和實驗研究的生物指標,是揭示移動電話射頻輻射生物學效應的必要途徑。Hotel kunlun s guestrooms and suites feature the following amenities and services : high - speed broadband internet access international domestic direct dial fold - out make - up shaving mirror coffee tea - making facilities electronic safe mini bar satellite cable television voice mail bathrobe slippers hairdryer wake - up calls room service bed - side control panel in - room temperature controls shoeshine service
昆侖客房和套間提供下列物品及服務:高速寬頻上網國內外直播電話折疊式化裝鏡電子保險箱小酒吧有線衛星電視語音信箱浴衣拖鞋吹風機叫醒服務房間送餐服務床頭控制面板溫度調節擦鞋服務It can provide speech classroom and videophone with management and control
可以對語音教室,或者擴展為視頻電話會議進行有效的管理和控制。It can provide many functions : the conversion between transfer formats, the conversion between communication protocols, the conversion between analog signals and digital signals, the conversion of control commands, real time audio code / decode, ip call control, control of rtp / rtcp, call detail logs, accounting and some of gatekeeper ' s functions such as address tansfer / search.
它提供以下功能:傳輸格式間的轉換,通信規程間的轉換,音頻、數據格式轉換,呼叫控制信令的轉換,對pstn的呼叫控制功能, pstn電路交換功能,實時語音處理語音壓縮功能, ip網路呼叫控制功能,對實時對話協議rtp rtcp的控制功能,呼叫日誌,計費功能,還包括關守的地址翻譯搜索等功能。Once has the bandits and thieves to intrude guards against the place, the detector launches the wireless coded signal immediately, the networking center number which installs when is apart from defense area 150 meter within the main engine to send out the police whistle sound to report to the police immediately, reports to the police dials to establish in advance or reports to the police the telephone, the handset number, answers in the police telephone to return puts user pre - record to report to the police the pronunciation, long - distance reports to the police, simultaneously comes the real - time transmission through the internet to deploy troops for defense, to withdraw from a defended position, to report to the police and so on the condition, inquires the historic record through the computer network
該系統還採用美國進口原裝晶元與先進的無線數字高頻技術微電腦cpu控制器主機組成。在防範地點安裝好主機后,並設置在布防狀態。一旦有盜賊闖入防範地點,探測器立刻發射無線編碼信號,安裝在距防區150米以內的主機立即發出警笛聲報警,報警時撥打預先設定的聯網中心號碼或報警電話手機號碼,接警電話里回放用戶預錄的報警語音,遠程報警,同時通過網際網路來實時傳遞布防撤防報警等狀態,通過電腦網路來查詢歷史記錄。The speech processing module can be divided into two parts, the first part includes speech compression, voice activity detection and echo cancellation module, which improve speech quality ; the other part includes dtmf and cpt module, which generate and detect some necessary telephony signal in the communication. this thesis is organized as follows
該語音處理模塊由兩部分組成,一方面是對語音的處理,包括語音壓縮模塊、靜音處理模塊和回聲消除模塊,主要為了提高voip的語音質量;另一方面是對電話通信的控制和處理,包括雙音多頻模塊和呼叫進程音模塊,主要為了產生和檢測ip電話通信中一些必須的電話信號。These include the well - known am, fm, shortwave and citizens bands and vhf and uhf television channels, as well as hundreds of less familiar bands that serve cellular and cordless telephones, gps trackers, air traffic control radars, security alarms, radio - controlled toys and the like [ see box on page 71 ]
這些頻率包括眾所周知的am 、 fm 、短波、民用頻帶, vhf和uhf電視頻道,以及數百個較不為人知的頻帶,供行動電話、家用無線電話、 gps追蹤系統、航空管制雷達、安全警示與無線電遙控玩具等使用(見85頁無線電頻譜) 。Coffee shop, air conditioner verse apparatus, the color tv can receive hbo, satellite channels such as phoenix satellite tv, the inside and outside the city, direct distance dialing call and special socket that can bind the pc and surf the net type of rooms
酒店擁有100套設備完善的客房,所有房間均安裝獨立控制的空調節設備,彩電可接收hbo ,鳳凰衛視等衛星頻道,市內外及長途直撥電話以及可聯結個人電腦和上網的特別插座。Hotel have 100 well - appointed guest room, all room air conditioner verse apparatus that installation control independently, the color tv can receive hbo, satellite channels such as phoenix satellite tv, etc., the inside and outside the city, direct distance dialing call and special socket that can bind the pc and surf the net
酒店擁有100套設備完善的客房,所有房間均安裝獨立控制的空調節設備,彩電可接收hbo ,鳳凰衛視等衛星頻道,市內外及長途直撥電話以及可聯結個人電腦和上網的特別插座。These chip inductors provide maximum protection features for solder reflow, welding and come with precise formed caps of high temperature acrylic for perfect co - centering and vacuum pickup. they have excellent solderability and are able to withstand pull - up force, mechanical shock and pressure. available in sizes of 0402, 0603, 0805, 1008, 1206, 1210, our chip inductors have wide inductance range for virtually all broadband and rf applications
臺達電子提供全系列之被動元件,包括0402 0603 0805 1008 1206與1210系列,可應用於行動電話基地臺寬頻通訊無線電話個人數位助理pda呼叫器搖控器電視機上盒數據機電壓控制振蕩器與高頻模組等。I mainly discuss the features of the exchange rate arrangement from 1994 to july 21st, 2005, including how it helped to successfully pass the financial crisis in 1999 and how it hindered the further development of the economy in china
特別是由於美國近年來連年財政赤字,以及貿易項目逆差,使得國際上很多國家把矛頭指向了中國的匯率制度。在近三年內,人民幣匯率制度一直是國內外經濟學界的熱門話題,頻頻出現在國際各大經濟學雜志和學術討論會議上。Dual band multi - layer advanced load management
雙頻多層網話務流量控制This product can be combinated with different reel diameter, numbers and types accoding to users requirement which adopts ac fc control technology and plc program control features high dynamic performance convenient operation wide application scope of drawing process and good cooling effect etc
本產品可根據用戶要求進行捲筒直徑,個數,不同形式的組合.採用交流變頻控制技術,全數字plc通訊控制.具有人機界面對話功能,動態性能高.操作方便,拉拔工藝適用范圍寬,冷卻效果好等特點Holiday inn hotel is located in the crossing of tianwei road and zhongshan road around the sea and river, adjoin with the downtown and government bodies. room intro about 265 guestrooms, they are superior and executive suite. all rooms allocated the specialized bathroom, movie and color tv of satellite channel hbo, cnn and four japanese channel, tea set, international direct dial, message - box, internet access, air - conditioner, private insurance box, mini - bar and fridge
每間客房都配備有專用浴室可觀看客房專送電影和衛星接收頻道hbo , cnn及四個日本頻道的彩色電視機茶具國際直撥電話留言信箱,網際網路介面可獨立控制的空調系統個人保險箱迷你吧臺及冰箱等。Telephone circuit produce dtmf signal, receive ring signal and perform speech function. dtmf receiver lets it becomes binary code for mcu to read. analog circuit process speech signals between phone and gsm modem
固話電路提供產生的雙音多頻信號及振鈴和通話功能,雙音多頻收號電路將dtmf信號變成二進制碼,便於mcu的識別和處理。All guest rooms are equipped with advanced locking systems, an integrated power supply, sound proof doors and a personal security alert button in the bathroom. individual controls for the heating and cooling system, international satellite television channels, idd telephone system with bathroom extension, hair dryer, large bath, shower cubicle, mini bar, electric kettle, complimentary tea and coffee, electronic safe, large desk and high speed internet access are standard
所有客房均配置高級安全門鎖房間電源指示燈房門隔音條洗手間sos安全報警系統獨立控制的冷暖空調設備國際衛星頻道國際直撥電話浴室電話分機風筒大型浴缸及分離式淋浴間迷你吧電熱水器及客房免費咖啡茶電子保險箱大型書桌,並提供10m光纖高速的電腦上網設備。The basic characteristics, framework, principles of dominant parts and application of those are studied and illustrated. at the last chapter, by devising a short - wave radio station aforementioned fundamental theories are put into practice especially digital modulation, demodulation, ddc and dug etc. the implement framework and design method of sdr are discussed by data transmission of voice including dug modulation in transmit module and ddc demodulation in receive module. moreover, satisfied results are obtained by validation on the sb3410 platform in bluewave system
針對論文設計中用到的兩個比較重要的器件hsp50214b下變頻器和hsp50215上變頻器,作了較為深入的研究並給出了詳細的描述,包括基本特徵、框架結構、各主要部分原理及在設計中的應用;在最後一章,通過設計一個短波無線電臺,將前面的基礎理論尤其是數字調制、解調及數字上、下變頻等應用於實踐中,通過實例討論話音數據傳輸的軟體無線電實現結構及設計方法,包括發射模塊中的上變頻調制和接收模塊中下變頻解調等,並在bluewave系統的sb3410平臺上運行驗證,取得了較為滿意的結果。分享友人