rate signal 中文意思是什麼

rate signal 解釋
比率信號
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  • 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. Development of a multi - athletes heart sound signal telemetry system with simultaneously sampling of cardiac contractility and heart rate

    同時採集多名運動員心力和心率的心音信號遙測系統的研製
  2. ( 3 ) study the segmentation and recognition of audio frequency signal. audio signal can be divided into segments based on zero - crossing rate. ( 4 ) a audio recognition arithmetic based on mfcc is proposed

    音頻信號的處理作為項目的一部分，根據要求實現了對單一音頻信號的識別，用vc6 . 0來實現。
  3. ( 2 ) study the character of audio signal. analyze the zero - crossing rate and mfcc. a mean mel coefficients is proposed, it can be used to recognized different audio signal

    通過對mfcc系數進行分析，均值mfcc系數作為音頻特徵，採用動態時間規整識別演算法，能夠對單一音頻進行識別，對已有數據源進行測試，有較高的識別率。
  4. In this article, double threshold, iteration is applied to improve segmentation algorithm based on signal energy, and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound

    本文通過使用雙門限、迭代等方法，改進了基於信號能量的分段演算法，並首次引入短時過零率以更準確地定位分段邊界。
  5. Discharge yi rate of work crystalloid has short circuit signal

    放電之功率晶體有短路信號。
  6. Later on we discuss the basic theory of multi - rate signal processing, and the polyphase algorithm for interplation filter, then produce the efficient algorithms for interplation : half - band filter and cic filter. we analyze their computing quantity and performance, especially the mirror elimination feature and the at - tenuation in the passband

    之後討論了多速率信號處理的基本理論，比較了不同的內插演算法，分析了半帶濾波器和cic內插濾波器的計算代價、時頻性能，以及各自的抑制鏡像特性。
  7. Fpga and dvb standard are introduced firstly, dvb - c standard and composition of its system are analyzed completely, development of modulator structure and dvb - c digital modulator composition are presented, more over, analysis of respective modular are given. then, principle of dvb - c digital modulator system are presented, they are error control technique 、 mqam 、 nyquist rule and root raised cosine filter 、 window design method for fir filter 、 multi - rate signal processing ( integer interpolating, conversion of fractional sampling, equal conversion of net structure, polyphase structure for filter, poly - phase structure for interpolator, multi - stage implementation of samplying conversion ) 、 distrubited algorithm 、 cic filter 、 dds 、 cordic algorithm

    接著，專門利用一個章節闡述了dvb - c前端調制系統原理，他們了差錯控制技術、多進制調制（ mqam ） 、 nyquist準則與平方根升餘弦濾波器、有限沖擊響應濾波器的窗函數設計法、多抽樣率信號處理包括（整數倍內插原理、分數倍抽樣率轉換、網路結構的等效結構、濾波器的多相表示、內插器的多相表示、抽樣率轉換的多級實現） 、分散式演算法、 cic濾波器、直接數字頻率合成（ dds ） 、 cordic演算法。
  8. 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。
  9. Methods of estimating baud rate, signal to noise ratio ( snr ) and reference phase are investigated. a modified euclidean algorithm is proposed to estimate baud rate of the burst packets. a cumulant based algorithm of estimating snr of star - qam is proposed which has better estimation performance in medium scope of snr

    研究了自適應調制中波特率，信噪比和載波相位等參數的估計演算法；提出一種基於修改的歐幾里得演算法的波特率估計演算法，這種演算法可以對突發分組的波特率做出準確估計；提出一種星型qam信號的信噪比估計演算法，在中等信噪比條件下，具有較好估計性能。
  10. Then ， we complete the intermediate frequency digital acquisition and tracking circuits according to the band pass sample theory, digital signal processing theory, multiple rate signal processing theory and digital filter theory

    接著，基於帶通信號采樣理論，數字信號處理理論，多速率信號變換理論，數字濾波器理論，設計出了中頻數字捕獲與跟蹤電路。
  11. In the second part of our paper " s work, we give the detail design of new - style all digitized radar terminal. this design is based on up to date multi - rate signal processing technology, and is developed from old cw velocity measuring radar " s terminal. at the same time, radar supply oscillator " s design based on dos technology is also present

    在本文工作的第二大部分，我們結合最新的軟體無線電技術，在原有的連續波測速雷達技術基礎上，進行了系統結構創新，給出了符合現代技術特點的全數字化的系統軟硬體設計。
  12. We reconstructed the phase space and calculated the nonlinear parameters such as correlation dimension, the largest lyapunov exponent, approximate entropy, and l - z complexity of the data. it can be conclud from the results that the reconstruction of heart beat rate signal is strange, its correlation dimension is between 5 to 7 and have the character of fractal dimension, its largest lyapunov exponent is larger than zero, its approximate entropy and l - z complexity are obviously differ from noise. we can draw a conclusion from all above : the heart beat rate signal is n ' t simple noise, it is high dimensional chaos obeys certain dynamical law

    我們還對信號進行了相空間重構，計算了信號的關聯維數、最大lyapunov指數、近似熵和復雜度這幾個非線性特徵量，我們發現，心率信號的吸引子是奇怪吸引子，關聯維數介於5到7之間，具有分維的特徵，其最大lyapunov指數大於0 ，其近似熵值和復雜度值明顯區別于噪聲，這說明心率信號不是隨機噪聲，它是服從確定性動力學規律的高維混沌信號。
  13. For medium or long distance underwater acoustic communication, the narrow bandwidth and low carrier frequency only supports low bit - rate signal transmission

    對于中、遠距離的水聲通信而言，水聲通道的窄帶寬、低載波頻率特性只能支持較低的信息傳輸速率。
  14. In chapter 2, it introduces the basic theory of the software radio, which includes the architecture of software radio, the sampling theory and multi - rate signal process

    第二章介紹了軟體無線電的基本架構、軟體無線電中的信號采樣理論及多速率信號處理技術。
  15. So in chapter 2, the thesis introduces the related theory of software radio, such as the sampling theory, multi - rate signal processing, and high efficient digital filter

    第二章將對包括信號采樣理論、多速率信號處理以及高效數字濾波器等的相關理論進行說明。
  16. From the results of linear analysis, it can be found that most of the people ' s heart beat rate centralize at 70 - 80 times / min. it ' s power spectrum is a continuous spectrum with a pinnacle, this shows that the heart beat rate signal obeys certain dynamical law

    文中對15例心率信號進行了統計分析和簡單的時頻域分析，發現大部分人的平均心率集中在70 - 80次分，其功率若是一有尖峰的連續譜，說明心率信號不是簡單的噪聲，它服從一定的動力學規律。
  17. At present a new kind of tv set appears in the market. it " s based on the digital process technology, and we call it digital process tv set. it use various of the diagital methods to process the interlace, low field _ rate signal, include the deinterlace, field _ rate conversion and the methods of display enhance

    他的核心是利用各種數字的方法對隔行低場頻的模擬電視信號進行去隔行、提高幀頻、以及進行降噪和各種畫質增強的處理，極大的改善了畫面的質量。數字處理電視的核心是電視信號數字處理晶元。
  18. This paper investigates the problems about the base - band signal shaping and the multi - rate signal processing of the radio - frequency signal

    本文對基帶信號的成形和射頻信號的多速率處理進行了研究。
  19. Secondly, another important technique, multi - rate signal processing for software receivers, is investigated

    其次，研究了軟體無線電系統中十分重要的多速率處理問題。
  20. Finally, two important theories of the multi - rate signal processing, interpolation and decimation, are discussed. the paper also gives their computer simulation results and fpga implementation

    最後討論了多速率信號處理中兩種重要的信號處理? ?內插和抽取，對它們的實現方法進行了軟體模擬，同時給出了它們的fpga實現。
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