fundamental signal 中文意思是什麼

fundamental signal 解釋
基波信號
  • fundamental : adj 1 基礎的，基本的，根本的，重要的；原始的，主要的。2 【物理學】基頻的，基諧波的；【音樂】基音...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. 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。
  2. On the other side, we use the method of optical formation process to introduce two fundamental filtering function in frequency domain of coherence system of awg two optical processors are designed, that is optical signal add / minus and phase filter

    另一方面，運用光學信息處理方法，我們探討了awg型相干系統頻譜區兩類基本的濾波函數的引入，設計了兩種光信號處理器：光信號加減器以及位相，濾波器。
  3. In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation

    本文主要介紹了偏振無關光纖michelson干涉型微弱磁場傳感器信號處理的方案:通過閉環控制工作點演算法使干涉儀工作在正交工作點處，再利用相敏檢波演算法提取傳感器輸出信號的基頻分量，以測量直流磁場的大小。
  4. Theoretical expatiate on general concepts and fundamental principles of information hiding and steganography, also point out possible directions for further research, also analysis the probability of speech as the host carry signal and efficient masking characteristics of psycho - acoustic model, it is shown that : there is an improvement on imperceptibility according to human auditory masking effect

    闡述了信息隱藏技術和隱寫技術的重要概念、基本理論以及廣闊的應用前景。分析了將語音信號作為宿主載體信號的可行性，參考心理聲學模型的特性，得出結論:基於人耳聽覺掩蔽效應的隱寫演算法，在隱蔽性上有很大的提高。
  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。
  6. Pll frequency synthesizer is increasingly used in microprocessor systems and communication. with the development of integrated circuits and the emergence of soc ( system on a chip ) technology, it has been a fundamental and very important module in analog and mixed - signal integrated circuits

    鎖相環頻率合成器現在日益廣泛地應用於通訊、微處理器系統中，並且隨著集成電路的發展以及soc技術的出現，其已經成為超大規模集成電路中不可或缺的模塊。
  7. This paper gives a comprehensive presentation about the fundamental of the flow - measuring method by flume, the design of khafagi flume and the buoy - level mechanism, the signal conversion by the angle measuring sensor and the deduce of the flow equation. it also introduces the hardware design, the development and emulation on software of the intelligent measuring meter in detail. the error of flow measurement is analyzed and calculated in the end either

    本文對槽式流量測量的基本原理、卡發基槽和浮桿測量機構的設計、角度傳感器的信號轉換以及流量計算公式的推導做了全面的闡述；詳細介紹了智能儀表應用系統的硬體電路設計和應用軟體的開發及模擬調試；最後對測量系統的各項誤差進行了分析和計算。
  8. This project uses the single chip machine mcs - 51 as its fundamental controlling unit and adopts many digital chips. scrambling is fulfilled by compressing some of the synchronous tips carried by rf signal

    本方案以單片機mcs - 51作為加解擾系統的核心控制器件，通過將有線電視射頻信號的某些行同步頭壓縮掉的方式實現對電視信號的加擾。
  9. The fundamental concepts and theories of array signal processing are discussed summarily, and the model of wideband array signal processing is set up

    系統概要地論述了陣列信號處理的基本概念和理論，給出了寬帶陣列信號處理的模型。
  10. The fundamental concepts and theories of array signal processing are discussed. the definition and presentation of the narrowband signal is introduced briefly, and the technology of orthogonal sample is illustrated. then the statistical model of array signal processing is presented

    系統概要地論述了陣列信號處理的基本概念和理論，分析了陣列處理中窄帶信號的定義和表示方法，闡明了正交采樣等采樣方法，給出了陣列信號處理的統計模型。
  11. Based on the above mentioned, from the point of spatial - frequency domain, the paper analyzes the change of light field intensity in different phases when optical signal of fundamental mode transmits hi awg the general expression of awg ' s transimission characteristics is obtained

    以此為基礎，論文從空間頻域的角度分析了基模光信號在通過awg的過程中各個階段的光場強度變化情況，得到了awc的傳輸特性的一般表達式，並討論了awg的相干系統特性。
  12. Based on the analysis of stable and transient waveforms in the power system, the paper use the exponent - typed signal to describe the signals in the power system including the dc element, fundamental, harmonics, interharmonics, subharmonics and the attenuation of the dc element and the sine waveform

    根據對電力系統暫、穩態信號波形的分析，本文用指數型信號來描述電力系統信號（包括直流分量、基波、諧波、間諧波、次諧波以及衰減直流分量、衰減正弦波等） 。
  13. Secondly, according to the model of speech - recognition system it describes the fundamental of every part ( including pretreatment, end point detection, template production and template matching ) such as the speech data signal process, the mode recognition and discusses some method of the realization of speech - recognition on pc

    其次，根據語音識別系統的基本構成模型，介紹了預處理、端點檢測到模板生成及模板管理和模板匹配各部分所涉及到的語音數字信號處理、模式識別等方面的基本原理，並討論了在pc機上實現語音識別系統的幾種途徑。
  14. The sum of those signals, ranging from 0 to 9, is the firm ' s overall fundamental signal

    這些信號數值的總和大小從0到9 ，是公司整體的基本信號。
  15. Blind signal processing is a fundamental signal processing technology aimed at retrieving a system ' s unknown information from its output only. mimo blind source separation may consist of recovering unobserved sources from several observed signals without prior knowledge of sources or the channel

    多輸入多輸出系統的盲源分離，是指在對源信號和通道沒有任何先驗知識的情況下，從觀測到的幾個信號中來恢復出未知的源信號。
  16. In order to optimize the modulation performance, the relationships between the modulation signals ( include fundamental signals and zero - sequence signal ) and space vectors, between the modulation signals and space - vector sectors were discussed, then three kinds of optimal switching pattern of space - vector modulation are established

    文章首先從研究svpwm調制中零序信號與零電壓矢量和非零電壓矢量之間的關系這一獨特角度出發，探討了svpwm的優化調制方法，找出了三種開關損耗小、適用於高頻化逆變器的優化開關模式。
  17. It is one of the important parts for the control of hupqc to detect the reference compensation signal. the predictive strategy is presented based on wavelet theory, that means tracing the fundamental signal and replacing with sampling data every half cycle. the fundamental signal is forecasted step - by - step in a half cycle earlier

    補償指令信號的檢測是電能質量調節裝置的控制環節之一，本文提出了基於小波理論的預測檢測策略，跟蹤基波信號，以半周期為采樣更新速度，應用小波變換法對信號的基波分量進行遞推式預報，並取其與實時信號之差做為參考，然後產主與之大小相等、相位相反的信號作為hupqc的實時補償指令信號。
  18. This paper introduces a method of calibrating and processing angular speed fluctuation in ni sampling system - pxi - 6281, it accomplishes the acquisition of angular speed fluctuation by distortion of signal, analyzing fundamental wave, high order harmonic of angular speed feedback signal and calculating the amplitude ratio of base wave and high order harmonic

    摘要利用ni的pxi - 6281高速數據採集卡來完成角速度波動信號的採集，借鑒信號失真度的概念，分析角速度反饋信號的基波和高次諧波大小，求取高次諧波與基波幅值比，作為角速度波動率。
  19. The fea model of the signal transform device is established with the use of ansys based on design specifications and tests. the fundamental natural frequency predicted by the fea model is consistent with it obtained by the tests

    在設計規范和試驗的基礎上，用ansys軟體建立了信號變換裝置有限元分析模型，由有限元分析模犁得出的結構最低階固有頻率與試驗測得的數據基本一致。
  20. The butterworth wavelet filter with good magnitude - frequency characteristics is adopted to process the vortex flow signal, and the fundamental frequency of signal is estimated effectively. the algorithm is implemented in a digital signal processing system based on a tms320vc5409 dsp chip, and its effectiveness is proved

    採用幅頻特性較好的iir型butterworth小波濾波器，處理渦街流量信號，估計基頻，並在以tms320vc5409為核心的渦街流量計數字信號處理系統上實現，證明其方法的有效性。
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