步帶通道 的英文怎麼說
中文拼音 [bùdàitōngdào]
步帶通道
英文
ambulacral tunnel-
Digital speech technology has been widely used in many fields of communications in recent years, but it is just at beginning to use acoustical wave to implement underwater digital speech communications, which mainly results from the bandwidth - limited underwater acoustic communications channel and its high temporal and spatial variability
目前，數字語音技術已廣泛應用於許多通信領域，但是在水下利用聲波進行數字語音通信卻是剛剛起步的新技術，這主要是由於水聲通道有限的通信帶寬及其時變、空變等特性所決定的。This article obtains from the research technology progress to economy rate of rise contribution degree, the use " the charles w. cobo and paul howard douglas production function " and " solow function " unifies the technology progress to the northern tianshan slope economic belt economy rate of rise contribution degree to make the theoretical analysis and the real diagnosis discussion, analyzes this region technology progress development through computation different time technology progress contribution degree the dynamic behavior, through compares each interurban technology progress contribution degree difference condition analysis promotion technology progress level to enhance intrinsic machine - made and the external environment, by tendency angle research technology progress condition and influence factor, thus hinders the northern tianshan slope economic belt technology progress factor, and the ponder countermeasure, accelerates the northern tianshan slope economic belt technology progress, the promotion economy growth provides the reference.
本文從研究技術進步對經濟增長速度的貢獻度入手，採用「柯布-道格拉斯生產函數」和索洛「增長速度方程」相結合的方法就技術進步對天山北坡經濟帶經濟增長速度的貢獻度做出理論分析和實證探討，通過計算不同時期的技術進步貢獻度來分析本區域技術進步發展的動態行為，通過比較各城市間的技術進步貢獻度差異狀況分析促進技術進步水平提高的內在機制及外在環境，以動態的角度研究技術進步的狀況和影響因素，從而為分析阻礙天山北坡經濟帶技術進步的因素，並思考對策，以期加速天山北坡經濟帶技術進步，促進經濟增長提供參考。Expression of aquaporin - 4 in ischemic penumbra tissues
缺血半暗帶組織中水通道蛋白4表達的初步研究Aiming at the present design fashion of domestic bigger tunnel, simulating a bigger tunnel with catholic characteristic, confirming the parameters of traffic inducement and controlling ( tunnel length, traffic, the selection and location of detection equipments, amount of roadway indicative lamp, etc ) on the base of the analog tunnel, discussing the controlling and revulsive mode of tunnel. briefly discussing the constitution of tunnel surveillance and controlling system and the executive means of traffic controlling and inducement subsystem and network structure of tunnel controlling system. finally discussing the conformation of emulational tunnel ' s database and detailed executive program by programming the computer emulation of controlling induce subsystem
論文圍繞「交通誘導與控制」這一中心展開，探討長大隧道交通誘導與控制設備及其控制誘導方式；結合國內外對交通流模型研究的成果，提出一套適合長大隧道交通流特點的交通流模型；並針對目前國內長大隧道的普遍設計方式，模擬一個帶有普遍性特徵的長大隧道，確定了關于交通誘導與控制方面的參數（隧道長度、交通量、檢測設備的選取和位置、車道指示燈的數目等） ；以此模擬隧道為基礎，進一步探討隧道的具體控制與誘導方式；簡要探討隧道監控系統的構成、交通控制與誘導子系統的實現方式，隧道控制系統的網路架構；最後通過編程實現控制與誘導子系統的計算機模擬，討論關于模擬隧道數據庫的構建，具體編程實現等。Major, trace element composition and sr - nd - pb isotopes of the cenozoic basalts from yangyuan ( hebei province ) and datong ( shanxi province ), which are located to west of the daxinanling - taihanshan gravity lineament, as well as mineral chemistry, major and trace element composition and sr - nd isotopes of mantle xenoliths from yangyuan are reported in this thesis
本文報道了大興安嶺-太行山重力梯度帶以西河北陽原和山西大同新生代玄武巖的元素和sr - nd - pb同位素地球化學及陽原幔源包體的礦物化學、元素和sr - nd同位素地球化學，據此對華北克拉通西部上地幔的性質和過程進行了初步討論。For example, carrier frequency offsets, which are caused by the inherent instabilities of the transmitter and receiver carrier frequency oscillators, can lead to severe system degradation due to inter - carrier interference ( ici ). symbol timing synchronization must also be achieved in order to avoid inter - symbol interference ( isi )
其載波頻率誤差會引入子通道之間的干擾（ ici ） ，而幀同步的誤差會引入符號間干擾（ isi ） ，同時還會對通道估計帶來嚴重的影響。The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above
但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。This thesis aims to carry out a profound study on the " government interference complex " in the ethnic regions from the pointview of executive philosophy. it tries to expose the complex ' s theoretical origin - misunderstanding on " economy determinism " and insistence on " straight development of history " ; its empirical origin - modernization effect ; practical motive - desire for synchronization and the promotion function given by the mainstream management ideas to the " complex ". based on these, the thesis reveals the realistic characteristics of " government interference " : firstly, it examines whether ethnic regions get some progress under the guidance of " straight development of history " ; secondly, government interference brings about the destruction and change in the fields of natural ecology, cultural ecology and ethics as well ; finally, government interference leads to the systematic lies and will involve the ethnic regions in the sequela caused by the interference
）對民族地區行政「政府干預情結」進行深度研究，試圖通過民族地區行政「政府干預情結」問題中隱含的邏輯線索，揭示民族地區行政「政府干預」理論起點：對經濟決定論的曲解、對歷史發展單線論的真理化，揭示民族地區行政「政府干預」經驗起點：后發現代化效應，揭示民族地區行政「政府干預」實踐動力： 「共時性」訴求，以及政府主流管理思想對民族地區行政「政府干預」的推動作用；在此基礎上，進而梳理出民族地區「政府干預情結」多方面的現實表徵：一方面，在單線歷史進化論考察下的民族地區進步；在另一方面，政府干預帶來了民族地區自然生態觀的沖擊與毀滅、文化生態的濫用與消亡、民族地區倫理道德的流失與嬗變、民族心理的依賴與失衡，再一方面，政府干預帶來民族地區的制度性說謊，並讓民族地區陷入了邏輯的怪圈：政府干預「政府干預后遺癥」 。Suzhou xianghong transmission belt co., ltd, located in suzhou industrial district, near by hu ning freeway and 312 highway, is a professional company which manufactures transmission belt, opened timing belt and pulley series products
蘇州祥宏傳動帶坐落於蘇州工業園區，緊靠滬寧高速公路，毗鄰312國道，交通十分便利，是一家專業從事橡膠同步帶，開口帶，多溝（契）帶及配套皮帶齒輪系列產品的生產型企業。The goal of this thesis is to accomplish base - band channel coding / decoding, fh framing / de - framing and fh synchronization, and also to control the modulator and demodulator in the prototype system. all these functions are implemented with a tms320vc5409 dsp
作為項目的一個重要組成部分，本文採用dsptms320vc5409實現了基帶處理部分的通道編解碼、跳頻意義的組拆幀和跳頻同步、並對調制解調晶元讀寫寄存器進行了配置。Picep eliminated the drawbacks existing in traditional measurements ( using light oscilloscope, magnetic tape machine and fault wave recorder ), such as failure to start automatic recording, low acquisition speed, less synchronous recording channels, joint grounding of channels and less analysis functions for electrical parameters acquired, etc. picep meets the requirements of both production and r & d need of power system
Picep解決了傳統方法試驗方法（光線示波器、磁帶機、故障錄波器）中不能自動啟動記錄、採集速度低、同步記錄通道少、各通道共地、對測得的電氣參數軟體分析功能少等弊端，滿足了電力系統生產實際和科研的需要。The deducing of the algorithms has very practical value in state estimation for systems under the complex environments. in the instance of complicated multi - channel system with multiplicative noise, the dissertation discusses the optimal estimation of state filtering and smoothing and the stochastic input signal with the technique of innovation and projection theorem of hilbert space. the main study of the dissertation is introduced as follows : 1 according to the practical requirement of complicated multi - channel system with multiplicative noise, the dissertation broadens rajasekaran filtering algorithm
本文針對復雜多通道帶乘性噪聲系統，應用新息的方法和hilbert空間的投影定理，對狀態最優濾波和平滑估計、隨機輸入信號的最優估計等理論與應用方面的問題，進行了進一步的探討，著重完成了以下工作：第一，根據復雜多通道乘性噪聲系統問題的實際需要，推廣了rajasekaran濾波演算法。Frequency - domain equalization. at the same time discusses some key problems in ofdm : high ratio of peak - to - average power of output signals, problem of synchronization, channel estimation, adaptive bit, power and subcarrier allocation. emphasize on channel estimation, and present a new algorithm which can filtering more interpolation errors and noise. for the sake of improve the performance of resist narrowband noise and make efficient use of the spectrum apply malvar wavelet division
同時就ofdm系統中的一些關鍵問題如峰值平均功率比（ papr ）太高，同步問題，通道估計，通道、比特與功率必須動態分配進行了研究，著重研究了通道估計問題並提出一種改進的方法，能濾除更多的噪聲分量和插值誤差，提高系統的性能；為了提高抗窄帶噪聲的性能和提高通道利用率，用malvar小波變換實現了不等帶寬分配。Traffic economic belt ( teb ) is a kind of belt - shaped regional economic organiza tion system, which aggregates industries, population, resources, information, ci ties and towns, interflows of passenger, interflows of goods and so on
交通經濟帶是以交通干線或運輸通道為發展軸逐步形成的產業和城市高度發達的經濟集聚地帶。Abstract : traffic economic belt ( teb ) is a kind of belt - shaped regional economic organiza tion system, which aggregates industries, population, resources, information, ci ties and towns, interflows of passenger, interflows of goods and so on
文摘:交通經濟帶是以交通干線或運輸通道為發展軸逐步形成的產業和城市高度發達的經濟集聚地帶。In the hfc network, the uplink channel is applied a spectrum of 5 to 42mhz. although such a spectrum is of good attenuation characteristics, one fact is that other services also share the same spectrum, making the noise introduction a serious concern. also the noise will gradually accumulate, thus severely affecting the transmission performance of cablemodem
在hfc網路中，上行通道採用5 ~ 42mhz的頻帶，雖然這一頻帶具有良好的衰減特性，但是因為其他服務也採用這一頻帶，所以引入噪聲成了一個嚴重的問題，並且這個噪聲將逐步積累，嚴重地影響cablemodem的傳輸性能。( before the proposal of this standard, use of ofdm was limited to continuous transmission systems ) combined with the national high technology project named " key techniques of the wireless module in fieldbus facilities ", author focuses on the research of baseband technologies of ieee802. il / lla physical layer, and put forward some novel algorithms about the timing and frequency offset synchronization and the channel estimation of ofdm transreceiver in wlan, which have been published on some kernel transaction and international conference and shows the author ' s great research achievements
結合作者研究生階段「現場總線設備中的無線通信模塊關鍵技術研究」 863課題，作者對ieee802 . 11 11a [ 1 ]物理層基帶部分相關技術做了深入研究，提出了無線局域網中ofdm基帶系統時間同步、頻偏估計以及通道估計等關鍵演算法，在國內核心期刊和國際會議上發表了相關學術論文，本文在此基礎上完成的。Other sub - projects in the maglev communication system projects deal with the communication channel, including baseband signal encoding and decoding, transmitting and receiving the wireless signal and baseband signal processing the technique of synchronization is deeply request in the digital communications system
本課題涉及車地通信系統中基帶的通道編解碼和無線通道的收發，完成通信系統中基帶信號處理部分的部分功能。在數字通信中，同步是一個重點。This paper also presents a conference management pattern without mcu, making control and data separate. in order to enhance the bandwidth utilization factor, a multi - channel based transfer method, unicast plus multicast, is brought forward. in the end of this dissertation, we presents implementation methods, which guarantee the continuity and synchronization of video and audio when playbacking
提出了一種無mcu的會議管理模式，實現了控制與數據的分離，所有的音頻混合及視頻切換功能均由客戶端計算機完成；提出了一種基於多通道的「單播+組播」傳輸方式，提高了系統的帶寬利用率；並給出保證視頻、音頻回放的連續性、同步性的實現方法。This task uses the ds - ss technology, and researchs the important technologies, such as synchronization of ds - ss, rake receive, narrow - band interference suppression, etc. these technology are useful for the voice - band channel of hf. i designed one system of very low bit rate for hf data communication, and completed the softwave module design of the system. i get the result of system ' s simulator, it ' s useful for the system realization
根據短波音頻帶寬通道的特點，重點對系統的擴頻同步技術、 rake接收技術和窄帶抗干擾技術進行了專題的研究。並根據自己多年的科研經驗，設計了一種具有實際意義的短波最低限度通信系統，並對實際的軟體實現進行了模塊化的設計。分享友人