針號 的英文怎麼說
中文拼音 [zhēnháo]
針號
英文
needle size-
Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理（ chirp - fourier變換）在應用到制導雷達信號處理中所存在的缺陷。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。The method is given to solve the problem in adaptive demodulation that adjudgement will worsen when the snr is low. by using the error signals to reduce the demodulated signals, the bit error rate will be improved
模擬中，針對dpsk信號的自適應解調中小信噪比下門限失效的問題，提出了利用誤差改進門限判決的方法，將誤碼性能提高了1 2db 。Economic indicators in recent months have set alarm bells ringing
近月的經濟指針已響起警號。As the aqueous humor was aspirated via a 26 - gauge needle through the peripheral clear cornea, the anterior chamber only showed little shallowness and regained the original volume again within several seconds
我們從角膜邊緣用26號針頭抽取前房液的當時，發現前房深度雖曾略減，但在抽取后幾秒內就恢復了。But domestic at the moment still not analyses the carding theory fruit to advertising semiotics theory research completely, hence, the research is reviewed by stages and classification to the advertising semiotics is contributed ; be aimed at now available text research defect, proposes a new angle to analyze advertising : the languages angle and the audient psychology angle, thus the meaning of advertisement can be understood more clearly designing the actual operation means of advertising semiotics and forecast advertising semiotics development tendency piece is also the original innovation. first section is the introduction, the profile was expounded against researches the aim, research target, research means together with research process
而目前國內還沒有對廣告符號學理論研究進行全面分析梳理的理論成果，因此，將廣告符號學分為導入期、發展期、繁榮期三個歷史時期，對每一時期進行回顧總結、文獻梳理，並歸納其特點與不足是本文的理論貢獻之一；針對現有研究方法的不足，力圖尋求一個研究方法的新視角，提出將索緒爾符號學研究方法更弦易幟：從最基本的語言出發來分析廣告、品牌，從受眾符號心理角度解釋文本意義的多樣化解讀並進行問卷的實證調查是本文的創新之二。Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。Such tags could emit 128 different signals in parallel, allowing the collection of data about an animal ' s breathing rate, wing - beat frequency and heartbeat ( if it were a species that actually has a beating heart ) in addition to its geographical location
佩帶器還可以發射128種不同的信號，這樣除了動物地理位置之外，還可以收集其它分門別類的數據，諸如動物的呼吸、翼擺、心跳頻率（針對有心跳頻率的動物）等等。The firth chapter is " other questions of designing of the " dehong " ", it makes a study of of its bitt - towing - power - experiment and the layout of signal equipment according the property of salvation. directed by dr. shi xin
主要針對「德宏」輪的救助特性，對系柱拖力試驗、救助船技術要求、信號設備布置等問題，進行了分析和探討。Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed
鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。We use fuzzy mathematical morphology to remove noise and dust which can lower noise successfully and also make up a loss of intensity caused by fluorescence blench. to acquire the target region, we purpose automatic gridding method based on image segmentation for image with irregular spots, it ' s segmentation through threshold. this method is presented simply and fast
在網格定位中，本文針對信號點不規則的晶元圖像提出了基於圖像分割的自動定位方法? ?閾值分割，該方法簡單快速，但對于光密度分佈不均勻的信號點，可能會去掉部分微弱信號，降低了計算的準確性。A pair of new inodorous halfsilk black ladies hose, a pair of new violet garters, a pair of outsize ladies drawers of india mull, cut on generous lines, redolent of opoponax, jessamine and muratti s turkish cigarettes and containing a long bright steel safety pin, folded curvilinear, a camisole of baptiste with thin lace border, an accordion underskirt of blue silk moirette, all these objects being disposed irregularly on the top of a rectangular trunk, quadruple battened, having capped corners, with multicoloured labels, initialled on its fore side in white lettering b. c. t. brian cooper tweedy
一雙嶄新沒有氣味半絲質的黑色女長筒襪，一副紫羅蘭色新襪帶，一條印度細軟薄棉布做的大號女襯褲，剪裁寬松，散發著苦樹脂素馨香水和穆拉蒂牌土耳其香煙的氣味，還別著一根鋥亮的鋼質長別針，折疊成曲線狀。一件鑲著薄花邊的短袖麻紗襯衣，一條藍紋綢百褶襯裙。這些衣物都胡亂放在一隻長方形箱蓋上：四邊用板條釘牢，四角是雙層的，貼著五顏六色的標簽，正面用白字寫有首字b . c . t布賴恩庫珀特威迪。Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。As to the critical technological problems of the interlock control of three - car coke oven - oven number identification, accurate contraposition and data transmission, the author proposes solutions respectively - rfid, three - light positioning device, coke oven controller and radio transmission network. these solutions can ensure accurate identification of the oven number. for example, the deviation of the automatic parking position is within 10mm
針對三車聯鎖控制環節的關鍵技術：爐號識別、精確對正和數據通信，本系統採用了射頻識別（ rfid ）裝置、三燈位置檢測裝置、焦車控制器、無線通訊網路等解決方案，可實現無差錯的爐號識別，自動停車定位誤差在10mm以下，通信數據可靠等系統要求。This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。Line 3 deco chain path return sprocket failed
3號線印機針鏈的從動鏈輪壞了。The key development production suits the asian skin archery target high tech content, high pointed, high specialized, the effect remarkable cosmetology skin care product, is dispelling the spot in particular, dispels smallpox, the depilate and so on the specialized nursing domain, has arrogant person ' s achievements in scientific research, is the minority several entire line product which domestic only has through national medical department authorizes the special card number ; the mausoleum profession modernization produces the factory
重點研製生產適合亞洲人膚質的高科技含量、高針對性、高專業性、功效顯著的美容護膚產品，尤其是在祛斑、祛痘、脫毛等專業護理領域，更有驕人的科研成果，是國內僅有的少數幾家全線產品均通過國家衛生部批準特殊證號的化妝品行業現代化生產工廠。Based on the comprehensive estimating method of the final drive, the analysis method is proposed to focus on analyzing one of the important testing targets ? the meshing states of the spiral bevel gears and differential gears of the final drive when they are working under the imitating conditions
本文主要對汽車后橋主減速器殼表面的振動信號進行分析。這是在主減速器綜合評價方法的基礎上，針對其中一項重要的試驗參數? ?主減速器齒輪的嚙合狀況，而提出的分析方法。Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally
本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。Sewing machines ; needle size comparison chart
縫紉機.針號對比表分享友人