重合及其信號 的英文怎麼說

中文拼音 [zhòngxìnháo]
重合及其信號 英文
coincidence and signal
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : Ⅰ動詞1 (達到) reach; come up to 2 (夠得上; 比得上) can compare with; be comparable; be up to ...
  • : 其名詞[書面語] (周年) anniversary
  • : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
  1. 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處理技術,即首先利用加hanning窗的welch修正周期圖演算法得到功率譜,搜索譜峰值頻率,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。
  2. In this dissertation, the analog - digital channelized receiver is studied. the optimized system, spectrum reconstructing and accuracy signal frequency estimation algorithms are researched

    本文研究了模數混通道化接收方案,著研究優化結構和關鍵技術以線性調頻參數估計演算法。
  3. Dsp chip is especially fit for digital signal processing, its main application is realizing all kinds of digital siginal processing arithmetics such as clove hitch 、 correlation 、 all kinds of transforms etc. realizing digital filters with dsp is an important application

    Dsp晶元是一種特別適於進行數字處理運算的微處理器,主要應用是實時快速的實現各種數字處理演算法,如卷積、相關以各種變換等。中,利用dsp來實現數字濾波器就是很要的一種應用。
  4. In this paper, combined with currently voice coding technique, espically with the fabulosity development of the mixed voice coding and the increasingly utility of the digital signals processor. we investigated the voice coding technique and discussed emphasizedly the technology of variable rate voice coding technology

    本文結當前語音編碼技術尤是混編碼技術的驚人發展數字處理器的日益實用化,研究了語音編碼技術,並點討論了變速率語音編碼技術。論文簡要介紹語音編碼技術中的波形編碼和聲碼器的主要性能。
  5. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下,首先詳細探討了軟體無線電的前提條件,即如何對連續時間進行采樣量化,比較分析了幾種采樣的方式,中最為要的是帶通采樣定理;然後探討了軟體無線電的一個要基礎,即多采樣率處理,點討論最基本的兩個過程抽取和內插以抽取器和內插器的實現;接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器;再次論文在總結了傳統的調制解調基礎上,結軟體無線電器件的特點,系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  6. This article analyses the signal characteristics of several typical cw radars, and presents the principle and application of doppler radar. as one focal point, this article researches the generation and math characteristics of pseudorandom code modulated signal, analyses the spectrum of pseudorandom code phase modulation radar signal, and presents this kind of signal ' s application in distance and speed measurement. this article also researches the application of mono - pulse amplitude comparison radar in angle measurement finally, this article elaborates the working process of crs in uast

    本文分析了幾種典型的連續波雷達的特性,介紹了多普勒雷達的原理和應用;研究了偽隨機編碼的產生和數學特徵,著分析了偽碼調相連續波雷達的頻譜,在雷達測距、測速方面的應用;研究了單脈沖幅度比較體制在雷達測角中的應用;最後,闡述了超近反導系統中復體制雷達的工作過程。
  7. An audio coding device includes an audio coder for receiving audio signals and generating base data and enhancement data ; and a rearranging device coupled to the audio coder

    一種聲頻編碼裝置包括:一聲頻編碼器,用於接收聲頻並產生基本資料與增強資料;以一耦至該聲頻編碼器之新排列裝置。
  8. As the requirements of its function, a bus control interface board has already been designed. also the paper have provided the scenarios demonstration for the bus control interface board ( bcib ), the design for the protocol of communication, the hardware for bcib, the software for bcib, and the software for the processor ' s communication. while the analysis for the capability of real - time and the calibration and test for subsystem have been also finished. during the design, the system advanced ability, reliability, resources availability and the cost - efficency ratio are considered. the issus such as system integrated control, mutual exclusion of the shared storages, generation of handshaking signal and system self - test were resolved

    本論文主要對航空自衛系統的綜化方式進行了深入研究,並按功能等方面要求,對航空自衛系統綜化總線通模塊進行了設計,主要完成了總線通模塊方案論證、通訊協議設計、總線通模塊硬體設計、總線通模塊( bcib )軟體設計、處理機通軟體設計、實時性分析、系統調試、試驗等項工作,在設計過程中,綜考慮了系統先進性、資源利用率、費效比可靠性等因素;點解決了系統綜控制方式、共享存儲器互斥、握手產生系統自檢測等問題。
  9. Abstract : plant responses to salt stress via a complex mechanism, including sensing and transducing the stress signal, activating the transcription factors and the corresponding metabolizing genes. since the whole mechanism is still unclear, this review emphasize the biochemical events during the plant adaptation to salt stress referring to an index of importance : the homeostasis in cytoplasm, the biosynthesis of osmolytes and the transport of water. most of these biochemical events were elucidated by study of halophyte and salt - sensitive mutations, also many important genes involved were cloned and used to generate stress - tolerance phenotypes in transgenic plants. on the other hand, about the molecular mechanism in signal transduction, the research of arabidopsis mutations and yeast functional complementation provided helpful traces but not full pathway

    摘要植物對鹽脅迫的耐受反應是個復雜的過程,在分子水平上它包括對外界鹽的感應和傳遞,特異轉錄因子的激活和下游控制生理生化應答的效應基因的表達.在生化應答中,本文著討論負責維持和建離子平衡的膜轉運蛋白、滲調劑的生物成和功能水分控制.這些生理生化應答最終使得液泡中離子濃度升高和滲調劑在胞質中積累.近年來,通過對各種鹽生植物或鹽敏感突變株的研究,闡明了許多鹽應答的離子轉運途徑、水通道和物種特異的滲調劑代謝途徑,克隆了相關基因並能在轉基因淡水植物中產生耐鹽表型;另一方面,在擬南芥突變體利用酵母鹽敏感突變株功能互補篩選得到一些編碼傳遞蛋白的基因,這些都有助於闡明植物鹽脅迫應答的分子機制。
  10. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmf濾波器組adc系統的頻響、量化噪聲特性、建誤差特性以建誤差對adc間的失配敏感性進行了理論分析研究,所得到的理論結果為: ( 1 )混濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致; ( 2 )無論輸入寬帶還是窄帶,這兩種adc系統的有效解析度均比adc提高了0 . 5log _ 2m比特; ( 3 )這兩種adc系統的建誤差對adc間的失配敏感性均明顯低於時間交織adc系統。
  11. The identified proteins are involved in a variety of cellular process including several zinc finger proteins relevant to transcription regulation, such as zinc finger 198, 263, 14, 224, zf6, novel protein similar to transcriptional represser ctcf, and kruppel - like zinc finger protein ; two members of the adams ( a disintegrin and metalloprotease domain ) family ; two members of integrin family ; several proteins involved in the signal transduction, cell - cycle control, chromatin remodeling and transcription repression ; and also some proteins of cell skeleton and some with unknown functions

    鑒定出的蛋白包括多個與轉錄調控相關的鋅指蛋白,如鋅指蛋白198 、 263 、 14 、 224 、 zf6 、轉錄抑制因子ctcf樣蛋白、幻肚pple樣鋅指蛋白等:兩個含金屬蛋白酶結構域和整素結結構域的家族成員adam28和adam17 ;兩個整素家族成員pz整素和含十個egf樣結構域的整素( tied ) ;與細胞轉導通路有關的蛋白;與細胞周期調控有關的蛋白;與染色體塑和基因轉錄抑制有關的蛋白;細胞骨架蛋白以他功能未明的蛋白等。
  12. Based on the basic principle of wavelet analysis, multi - resolution analysis of signal in atomic clock is made. the coefficients of wavelet transform for synthesis atomic time, which are weighed and averaged at different wavelet scales, are obtained. then according to reconstruction theorem, multi - resolution synthesis time scale can be reconstructed. since the signal of atomic clock has been analysed by multi - resolution, we can use wavelet variance at different scales to weight and average the coefficients. thus either the difference in stability of different clock or the varying characteristic of the same clock at the different scale are all considered. finaly, this method is checked by the measured data from national timing serve center of shaanxi astronomy observatory. it confirmed that this technique, which is simple and practicable, is a new method of multi - resolution. from this method, the common characteristic of different clocks can be extracted. the stability of multi - resolution synthesis atomic time scale is obviously superior to that of other methods

    本文根據小波分析的基本原理,對原子鐘進行多解析度分解,將分解后的小波變換系數進行加權平均,得到不同小波尺度綜原子時的加權平均小波變換系數,然後由小波變換的構條件,反演綜時間尺度.由於對原子鐘進行了小波分解,利用不同尺度的小波變換系數的小波方差進行加權平均,這樣既考慮不同原子鐘在穩定性方面的差異,又顧同一臺原子鐘在不同小波尺度的變化特性.最後根據陜西天文臺國家授時中心的實測數據對這種方法進行了檢驗.表明這是一種全新的多解析度綜方法,這種方法比較簡單而切實可行,它能提取各個原子鐘的共同特性,多解析度綜時間尺度的平穩性明顯優于他方法
  13. In this paper, interface signal of the digital televisions set - top - box is analyzed and studied, it is of significance to high quality transmission, effective scheme of hardware system and exerting the most efficiency of the audio and video equipment of digital television signal

    本文對介面進行的分析比較研究,對于數字電視的高質量傳輸,硬體設備的理配置以充分發揮音視頻設備的最大效能,具有要的實踐意義。
  14. In the course of research we have utilized control technology of the one - chip computer and micro - electronics technique, used the new chip, combined the characteristic of railway signal system. so the achievements of the research have great meaning for raising security, dependability and getting high - efficient of railway transportation

    在課題的研究過程中利用了單片機控制技術微電子技術,使用新的器件,符了鐵路系統的特點,因此研製出的系統對于提高鐵路運輸的安全性、可靠性和高效性將具有極大的意義。
  15. The company and the former jiangsu shenzhou worsted group co. has been awarded as top 500 national township enterprise, the best profit township enterprise, star enterprise of national township enterprise group and jiangsu province, aaa grade credit enterprise, suzhou management model enterprise, respect the contract and keep promise enterprise, ect

    公司前身江蘇申洲毛紡集團曾先後榮獲過全國鄉鎮企業500強全國最佳經濟效益鄉鎮企業全國鄉鎮企業集團江蘇省明星企業aaa級用企業同守用企業等稱
  16. The main results of this paper are as fellows f 1 ) illtroducing the ultrasonic technology to the rigid measurement, successful1y exploits the practical small intellectualized ultrasonic device of measuring rigidity by applying mechanical technology, electronic technology and computer science 2 ) reading clearcf displaying more various, applying more information, being easiest to accept by user because of adopting liquid crystal display ( lcd ) 3 ) theorizing the mathematical model between the signal of frequency and the rigid value on the device, possessing very importan practical significance 4 ) optimizing the every parts of the device, achieving the goals of lower wastage of energy, smaller, lighter and inexpensive 5 ) taking the measure to reduce the wastage of energy and adopting reasonable management in power supply for the device, making the device skimp more energy, prolonging the life - span of battery 6 ) utilizing the interface of rs - 232, discussing the communication between the ultrasonic device of measuring rigidity and computef, and also forecasting the foreground of advanced exploitation by user

    本文工作的主要成果是: 1 )將超聲波技術引入零件表面硬度的檢測當中。應用機、電、計算機技術,研製成功較為實用的小型智能超聲波硬度檢測儀2 )採用lcd ( liquidcrystaldisplay )液晶顯示,使讀數更清晰、顯示多樣化、息量多、易於為用戶接受3 )在理論上建立了該系統的頻率與硬度值的數學模型,具有非常要的實踐意義4 )對各元器件進行優選,達到低能耗、體積小、量輕、價格便宜等目的5 )採取措施降低整個系統的能耗並對系統的供電進行了理的管理,使進一步達到低能耗,延長了電池的使用壽命。 6 )利用rs - 232標準介面,討論了該超聲波智能硬度測量儀與系統機進行通訊以用戶進行二次開發的前景
  17. The early studies are mostly focused on the method of gluing piezoceramics on structural surfaces, which has some disadvantages such as difficulties to protect the ceramics and the connection wires, bad coupling with only one surface glued on the base materials, low signal - to - noise ratio etc. these problems can be solved using the embedded piezoceramics, and furthermore, the piezoceramics can be placed in the optimal positions, especially in the optimal deepness for the piezo - actuators, according to an optimization algorithm befor e they are embedded, so the actuator effects and sensor signals are thereby enhanced

    早期的研究主要集中在表面粘貼壓電片的結構,表面粘貼壓電片具有一些無法克服的缺點。本文著進行利用埋入復材料結構的壓電傳感器和壓電驅動器對振動進行主動控制的相關理論和實驗研究,並介紹相應結果。埋入型壓電材料的優點主要是能保護壓電傳感器和作動器連線、增強壓電材料和基體材料的耦、優化埋入壓電陶瓷的深度和厚度可增強壓電傳感器的測量並提高噪比等。
  18. Coincidence and signal

    重合及其信號
  19. Then, after the structure and characteristic of awg is described in brief, we put emphasis on the deduce of the dispersion equation of ufbgs in the vicinity of its reflection band gap ( rbg ) in light of coupling theory. in terms of this equation, the dispersion compensation of the optical signal in every channel in the wdm system, which has eight channels, is calculated and analyzed theoretically. during the course, some important parameters of ufbgs in the compensator are computed

    在簡要敘述了陣列波導光柵的結構特性后,著從光纖光柵耦波理論導出了均勻光纖光柵在反射帶隙( rbg )外附近的色散特性方程,並根據這一特性方程,對8通路的wdm系統中各分亡巴八碩士學位論文tinv坯1 : e 』 sthe狠波光的色散補償進行了數值計算與分析,由此確定補償器中各均勻光纖光柵的相關參數。
  20. On the other hand, the expression is repressed by the proto - oncogenes n - myc and c - myc, and in some cases the expression is also repressed by testosterone or dihydrotestosterone ( androgen ) at mrna level infering from all the references that can be obtained, the functions of ndrg family may be involved in cellular differentiation events > maintaining the balance of cell redox potential ( in oxidative stress condition or biological conversion process ), or counteracting cell malignant transformation, and so on

    己有的文獻,推測ndrg家族可能參與細胞生長分化、維持細胞氧化還原電勢平衡(氧化應激或生物轉化) 、阻止腫瘤細胞惡化等。因此,研究在細胞中的具體功能以可能的通路將具有非常要的意義。深人研究ndrgz在體內的組織細胞和亞細胞水平分佈特點功能,需要高效價和高特異性的ndrgz抗體。
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