通道性 的英文怎麼說
中文拼音 [tōngdàoxìng]
通道性
英文
channel perfofmance-
And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results
接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。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。The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。Makes general analysis and research on human visual system the characteristicness of human visual system is the process being considered firstly for every image process technology, include watermark technology, in order to join the characteristicness of hvs and the watermark technology together, this paper analyses and researches the hvs theoretics particularly firstly. it build the aesthesia models and the jnd models after discussing eyes " biology configuration particularly and expatiating eyes " aesthesia process. these works provide the foundation for the later research of watermark channel capacity and the watetmark embedding intensity. 2
對人類視覺系統的特性進行了全面的分析和研究人類視覺系統的特性是任何圖像處理技術必須優先考慮的環節，數字水印技術也不例外，為了使人類視覺系統的特性和數字水印技術很好地結合，本文首先對人類視覺系統理論進行了全面細致的分析和研究，在詳細闡述了人眼的生理結構及人眼對顏色的感知過程的基礎上，建立了人眼的感知模型和人類視覺系統的jnd模型，這些工作為后來水印通道容量的研究、水印嵌入強度的確定等工作奠定了基礎。Abstract : radiate thermometer uses a high definitive operation circuit in the modulation and linerization of weak optical signals. the theory of colorimetry was used in measuring the temperature. analogic channel and digital interfaces were added in order to expand the instrument. a kind of double channel ' s photocolorimeter including its hardware and software is introduced
文摘:輻射測溫計採用高精度運算電路，對光弱信號進行調制和線性化處理，運用比色法原理對溫度進行檢測.為了便於儀器擴展，增加了模擬量輸出和數字介面，並對光纖式雙通道比色高溫儀的硬體與軟體的關鍵部分作了簡要介紹Severe plastic deformation ( spd ) processing, especially equal - channel angular processing ( ecap ) of steel and other iron - based alloys, has achieved increasing interest recently because of the potential for obtaining ultrafine grains and improving the properties
近年來，強烈塑性變形特別是鋼和鐵基合金的等徑彎曲通道變形因為具有獲得超細晶組織和改善性能的潛力，引起了各國研究人員的很大興趣。In performing ecap, a material is subjected to intense plastic straining by pressing a sample repeatedly through a die containing two channels, with equal cross - sections, intersecting at an angle. equal channel angular processing of the medium carbon steel ( 0. 45 wt. %
Ecap變形是使試樣通過橫截面相等並成一定交角的兩通道的模具中而產生強烈的塑性變形的一種變形方法。最近人們運用ecap變形方法成功地使低碳鋼及珠光體鋼組織超細化，關于這方面的研究已引起了人們的廣泛關注。Atp - sensitive potassium channels and hypoxic pulmonary hypertension
敏感性鉀通道與低氧性肺動脈高壓In this dissertation, the analog - digital channelized receiver is studied. the optimized system, spectrum reconstructing and accuracy signal frequency estimation algorithms are researched
本文研究了模數混合通道化接收方案，著重研究其優化結構和關鍵技術以及線性調頻信號參數估計演算法。When primary electrons hit the surface of the chunnel, secondary electrons are generated, which make the electron distribution at the exit hole of the chunnel more uniform
當初始電子碰撞絕緣壁時，會產生二次電子，而二次電子能改善電子在通道出口處的電子能量分佈的均勻性。Through position analyzing and estimating, salary investigating, salary orientation and salary structure designing, working out a scientific, rational and open salary system. the emphases of welfare is to provide payment of house loan interest, purchasing life insurance for technical cadremen, etc. increasing challenge to working contents, organizing train plan to employee, encouraging study the skill of speciality and management. providing promote chunnel for technical personnel
通過職位分析，職位評價，薪酬調查，薪酬定位和薪酬結構設計，制定出一套科學、合理、公開的薪酬制度框架；福利制度重點是提供住房貸款利息給付計劃，為技術骨幹購買商業人壽保險等；工作內容上增加挑戰性；組織實施員工的培訓計劃，鼓勵員工進行專業技術和管理技能的學習；提供與行政級別平行的技術職務升遷通道。Colicin ia belongs to the family of bactericidal proteins, the channel - forming domain of which can form lethal ion channel in the membrane of escherichia coli and related strains such as shigella sonnei
大腸菌素ia是可形成離子通道的一種細菌素，其通道結構域（ d451 ? i626 ）能在同種異株的大腸桿菌內膜上形成致死性離子通道。In the 1990s, the pheromones of gram - positive bacteria, which regulates the growth and toxin secretion of the same type bacteria, were identified they were peptides consisted by dozens of amino acids. the pheromones can auto - recognize membrane receptor of the identical types of bacteria. we had constructed a fusion protein named pheromonicin by introducing a staphylococcal pheromone agrd at the c - terminal of the colicin ia
丘小慶等利用信息素的自主導向特性和大腸菌素ia的致死性通道特性構建了由金黃色葡萄球菌信息素agrd和大腸菌素ia組成的融合蛋白，命名為pheromonicin ，該蛋白表現出了信息素和大腸菌素ia都不具有的抗金黃色葡萄球菌活性。Its action site is located on the postsynaptic membrane and the biological activity of hwtx - i is located in the fifth p - turn containing lys25 and lys 27. to - conotoxin mviia is a neurotoxin belonging to one of n - type ca2 + channels inhibitors, purified from the venom of the conus marine snails, contains 25 amino acid residues with three disulfide binds. it adopts the pattern of ick and its linkage of the disulfide binds and space conformation are highly similar to hwtx - i
-芋螺毒素mviia （ - conotoxinmviia ）是從芋螺屬（ conus ）海底蝸牛毒液中分離提純的一種活性多肽，屬于n -型ca ~ （ 2 + ）通道阻斷劑中一種，含25個氨基酸殘基，三對二硫鍵，其二硫鍵連接方式、分子的空間構象與hwtx -很相似，採取ick結構模體。Analysis the cause of channel disaccord of gain and phase, give four methods of gain and phase calibration, computer simulation illustrate the that the methods are effective. in the chapter 4, the basic relation of phase interferometer of one dimension, two dimensions, and the measurement accuracy and the approach of solving the phase ambiguity in the phase interferometers have been discussed in detail
第四章對相位干涉儀進行了較為詳細和系統的研究，給出一維相位干涉儀的基本關系式，分析了五通道相位干涉儀測向定位演算法及其性能指標，對解相位模糊問題進行了探討，在ccss中模擬了測向演算法，模擬結果證明了演算法的正確性。These characteristics give l2tp an advantage on building vpn. there are some disadvantages : one is that l2tp has a little of universality because it only encapsulate ppp frames ; the other is that the working of l2tp is dissymmetrical because lac is one end of l2tp and lns is other end of l2tp
但是，早期的二層隧道協議（第一版的l2f和pptp ，以及第2版的l2tp ）的通用性不強，分別在封裝對象上有局限性（例如只針對ppp ） ；應用工作模式為非對稱的，未能將該技術的應用范圍拓寬。This ion channel, present in the membrane of many nociceptors, responds not only to capsaicin, the pungent ingredient in chili peppers, but also to distressful heat and to protons ( the hydrogen ions that make substances acidic ) ; protons are unusually abundant in inflamed tissue
該受體是一種離子通道，出現在許多痛覺受器的細胞膜上，不只對辣椒的辛辣成份起反應，也對傷人的熱及質子（造成酸性的氫離子，在發炎組織中特別多）起反應。In this thesis, a multiple - stigmatic - point method ( mspm ) is applied to improve the conventional rowland - type design, which is especially important for designing an awg when the total number of the channels is large. it greatly improves the performance of an awg, such as the channel uniformity, the crosstalk and the insertion loss
文中採用多點消像差方法，對多通道數awg器件的結構設計進行了改進，改善了傳統的rowland圓結構設計中存在的緣通道的性能嚴重劣化的問題，大大改善了多通道數awg各通道性能的均勻性，改善了器件性能。The affection on sensitivity by differential drive patterns is analyzed. and the test for consistency of testing channels shows that the characteristics of every testing channel of the system are identical generally
分析了各種激勵模式對求解場域敏感性的影響，並對測量通道性能的一致性做了測試，結果表明所設計的系統各測量通道性能基本一致。Analysis of inmarsat - m system data channel performance
系統數據通道性能分析分享友人