采樣帶 的英文怎麼說

中文拼音 [cǎiyàngdài]
采樣帶 英文
sample strip
  • 采 : 采名詞（采地） feudal estate
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  1. Taking a view of pure time field, this paper presents dissolvable signals and basic concepts of sampling ; and also gives the very condition of discrete of signal ; this paper uses linear algebra to analysis this kind of signal and then gives some results and relevant deductions ; based on these results, 1 made a further step to analysis some typical band - limited signals in order to proof the coherence of my theory of dissolvable signal to the typical sampling theory ; i made some preliminary study about the feasibility of sampling and recovering of this kind of signal

    本文從純時域角度出發，給出了可分解信號及其采樣的基本概念；也指出了信號可離散化的條件；利用線性代數理論給出了對這類信號進行采樣的分析理論及相應的推論；並用這些結論對典型的帶限信號進行了分析，證明可分解信號采樣定理與經典采樣理論的一致性；初步探討了對這類信號的實行采樣與恢復的工程實現問題。
  2. The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory

    本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。
  3. It makes sampling data regularized by means of man - machine interactive mode and procedure method, respectively. the driven data of the cutter guide is generated, which is based on sampling data processed. it proposes an intelligent data reduction algorithm which bases on the combination of straightness of curves, equidistance and distance deviation principle

    首先採集並分析了內輪廓數據，分別運用程序處理方式和人機交互方式實現采樣數據點的規則化處理;根據處理后的測點數據生成磨頭驅動數據;並提出了一種基於曲線曲率、等距及距離偏差帶的自適應數據壓縮方法。
  4. According to the geometry of slope measurements for the subjective wavefront optometer, a wavefont reconstruction model using zernike polynomial with normalization factor is put forward. based on householder transformation and gram - schmidt orthogonalization method, two methods for working out unknown zernike coefficients are bring forward. the error propagation parameter for the wavefront reconstruction model is deduced

    深入研究了帶標準化因子的zernike多項式的性質;針對主觀式像差儀波前斜率采樣方案，提出了採用帶標準化因子的zernike多項式對眼測試波前進行重建的數學模型;提出了兩種求解方法，即基於householder變換求解法和基於gram - schmidt正交化求解法，用於確定重建模型中的未知模式系數;推導出了該波前重建模型對斜率測量誤差的傳遞系數。
  5. Bandpass sampling theorem and digital quadrature coherent detection

    帶通采樣定理與中頻採集數字正交檢波
  6. It points out that the uwb signal can be reconnoitered efficiently with sub - sampling method. 3

    說明了利用欠采樣方法對超寬帶線性調頻信號偵察的可行性。
  7. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  8. The architectures of the receiver are rf pass band direct sampling and if pass - band sampling with high - speed analog to digital converter after rf to if conversion. the first kind of architectures is hard to realize because of the requisition of devices is too high

    軟體無線電接收機分為射頻直接帶通采樣和將射頻信號變換到中頻后再進行帶通采樣，前者實現較難，對器件的要求太高，然後進行各種數字處理。
  9. Compared to the analogy or the base - band sampling solution, this structure not only enhanced the system mobility, the flexibility and stability, but also reduced the cost, moreover it may be a public platform, which realize multi - purpose and multi - service patterns communication signal despread and demodulation, has fully reflected the thought of software radio

    與採用模擬或基帶采樣解擴解調方式相比，這種結構既增加了系統的機動性、靈活性和穩定性，同時價格大幅下降，而且可以作為一個公用平臺，實現多功能、多制式通信信號解擴解調，充分反映了軟體無線電的思想。
  10. Firstly, this paper introduces the basic structure of narrow band fir digital filters. secondly, it analyses the components of narrow band fir digital filters, which conclude cic filter, hbf filter, resampling techniques. based on these analyses, the paper gives the full structure of narrow band fir digital filters and analyses its characteristics, which are frequencies response, anti _ aliasing and anti _ image

    本文首先簡單介紹了窄帶fir濾波器的基本結構，然後對窄帶fir濾波器的各組成部分進行了詳細分析，內容包括：積分梳狀濾波器（ cic ）的特性和設計，半帶濾波器（ hbf ）和整形濾波器的特性和設計，重采樣技術的原理與實現。
  11. The thesis reviews the theory which is the basis of synthetic aperture processing and introduces five algorithms of image reconstruction : the coherent addition provides a good opportunity for the real time sas ; the envelope processing can work when sonar echo returns lack phase coherence ; the i - q processing can reduce the sampling rate ; the broadband and ctfm processing are both aimed to increase the sas mapping rate

    討論了用於重構圖象的五種演算法，包括簡單的可進行實時處理的相關合成法，可以在缺乏相位信息時使用的包絡處理法，可以降低采樣率、減少運算量、存儲量的正交處理法，可以提高聲納運行速度，從而提高成象率的寬帶處理法和ctfm法等五種演算法。
  12. 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，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及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，結合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。
  13. A / d samples the intermediate frequency signal. the digital signal proceeding part based on tigersharc dsp can process the baseband digital signal including the algorithm of baseband modulation, baseband differential detection and symbol synchronization, etc. digital up converter supports interpolation filter and complex mixer

    A / d對中頻信號進行采樣，數字信號處理部分以tigersharcdsp為核心，負責基帶采樣數字信號的處理，實現基帶信號調制，基帶差分解調，符號同步的捕獲和跟蹤等演算法。
  14. The advantages of simple structure, good linearity, no magnetic saturation, widely measure band make it fit sample in optical - electric current transformer nicely. while, there also have many new problems in applying rogowski coils

    Rogowski線圈不僅具有結構簡單、線性度良好、無磁飽和、測量頻帶寬、動態范圍大等優點，而且體積小、重量輕，非常適合混合式光電電流互感器的取信號采樣繞組用。
  15. Moreover, the higher harmonic order is, the lower distinguishability, and, as a result, the assessment accuracy becomes bad. considered its prominent localization both in time - domain and in frequency - domain, wavelet is used to the field of assessing harmonic impedance for the first time. we choose chaari wavelet because of its special band frequency characteristic, which can stratify signals synchronously and locate the distortion time precisely in assessing harmonic impedance

    選取chaari小波為母小波，利用其特殊的帶通特性，對在公共連接點（ pcc ）采樣得到的電壓，電流畸變波形進行同步分層， 「突出」信號的畸變部分，提高了被分析信號的「信噪比」 ，以利於諧波阻抗估計準確度的提高。
  16. First, the theory and structure of swr is expounded, then software and hardware models of the base station, which use the sdr structure of wideband and band - pass sampling in if ( intermediate frequency ), are put forward

    首先介紹了軟體無線電的概念、特點、基礎理論和基本構成，推導了軟體無線電的數學模型，然後在此基礎上詳細討論了基於寬帶中頻帶通采樣軟體無線電結構的移動通信基站的硬體和軟體的設計方案。
  17. First, the structure of sdr and the physical - channel of td - scdma are expounded, then software and hardware models of the terminal receiver, which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ), are put forward

    首先對軟體無線電的組成結構和td - scdma物理通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構的td - scdma終端接收機的軟硬體模塊設計方案。
  18. On the basis of this theory, the applications of the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) in flight test were offered : increase the sampling in if ( intermediate frequency ) in flight test were offered : increase the capacity of the transmitter and the terminal receiver channels without changing the apparatus of original system and on the conditions of obeying the standard remote sensing

    首先對軟體無線電的組成結構和飛行測試中實際使用的通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構在飛行遙測測試中的應用，在不改變原系統設備的情況下，在遵守遙測標準的前提下，提出增加機載發射機和接收機通道容量的設計方案。
  19. The system exhibits fast response for the load current disturbance and the system always operates at discontinuous conduction current mode so that no slope compensation is required and high efficiency will be achieved when driving 4 leds. the design and analysis of sub - block circuits are provide in the thesis where band gap reference, oscillator, current sensing and over current protection, led load current

    本文完成了各個單元電路的分析與設計，著重分析了帶隙基準源、振蕩器、采樣和過流保護、負載led電流控制和開負載保護五個子電路，對其餘子電路也作了簡要分析。
  20. As for this experiment, parameters of all sampling band, including main sampling bands and blind sampling bands " are chosen, in adition, all filter are designed carefully

    其中包括帶通采樣各主采樣帶、盲區采樣帶的各參數確定、濾波器設計以及整體的matlab模擬驗證。
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