連譜號 的英文怎麼說
中文拼音 [liánpǔháo]
連譜號
英文
[音樂] accolade; brace-
This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results
針對傳統的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點,提出了一種利用模糊理論和「改進的譜相減法」結合的「模糊譜相減法語音增強」 ;針對語音信號端點檢測困難的特點,通過matlab模擬試驗,給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預測編碼倒譜參數和差分線性預測編碼倒譜參數相結合的離散隱含馬爾可夫模型進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系統,在保證系統實時性的同時,實現連接漢語數碼語音識別系統識別率的提高;在硬體實現上,詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系統各部分硬體設計;在軟體開發上,給出了連接漢語數碼語音識別的軟體設計各部分的流程圖,並對各部分進行了matlab模擬,並給出了模擬結果。The influence of the cloud droplet spectrum character and the spectrum growth and change is considered, which does not use a cut - off value for conversion from cloud water into rain water process. in the continuous coalescence equation, the particles fall velocity difference is not moved out from the integral, but is integrated in the equation as the function of diameter d to avoid the error of using particles average fall velocity. in the new scheme, generation rate of graupel due to the collection of snow by graupel and the collection of cloud ice by graupel are included
雲中凝結核ccn的數濃度採用超幾何函數表示;雲水向雨水的自動轉換過程採用grabowski ( 1999 )的公式,考慮了雲滴譜的特徵和發展變化對該過程的影響,而不是採用原方案給定閾值的方法描述該過程;對連續碰並方程不再將粒子落速差作為常量提出積分號外,而是直接作為粒子直徑函數在積分號內求解,這樣處理可以迴避使用粒子群的平均落速帶來的誤差;增加了霰和雪、霰和冰晶的碰並微物理過程。After analysising three existed methods for phase difference correction on discrete spectrum, it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window
綜合分析現有三種離散頻譜相位差校正方法,推薦在小噪聲工程實際中加hanning窗的第一種相位差法(采連續兩段信號作相同點數fft的相位差校正法)進行校正。The over - grazing of india ' s spectrum is already beginning to show in dropped calls and patchy reception
在印度,過度開發無線頻譜已經開始導致有效通話次數減少,信號接收不連貫等現象。The paper reconstructs frequency spectrum and reconstructing signal of a continuous signal based on matlab, presents the error of reconstructing signal, and makes an analysis of the influence from sampling period on the superposition of frequency spectrum and precision of sampling signal reconstruction
摘要基於matlab再現了連續信號的采樣頻譜和重構的時域信號,給出了信號重構的誤差,並分析了采樣周期對采樣頻譜疊加和信號重構精度的影響。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信號的特性,介紹了多普勒雷達的原理和應用;研究了偽隨機編碼信號的產生和數學特徵,著重分析了偽碼調相連續波雷達信號的頻譜,及其在雷達測距、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合體制雷達的工作過程。For ensure the reliability of hf radar in congested environment, the radar signal with discontinuous spectra has attracted increasing attentions
為保證高頻雷達在惡劣環境下正常工作,非連續譜雷達信號日益受到重視和研究。According to the relation between gear wear and its vibration, continuous wavelet transform is introduced to estimate the wear condition, the energy values of continuous wavelet on scale fit a spline which is much like that of the wear course of the gear
最後,將基於連續小波變換的信號處理方法引入變速箱齒輪的磨損估計。根據信號的連續小波變換的能量譜對尺度的積分值,擬合得到齒輪的磨損過程曲線。We introduce some marks and lemmas before we construct chebyshev rational spectral formation of semi - discrete with respect to space. then we obtian the error estimate for the approximate solution and the existence of approximate attractor an, and besides, we prove the upper semi - continuty on the global attractor
在引入一些本文所需的記號和引理之後,通過建立chebyshev關于空間方向的半離散有理譜格式,證明了方程近似解的誤差估計,以及在此格式下近似吸引子a _ n的存在性,並且得到關于原方程整體吸引子的上半連續性。Transient signal analysis software for chromatograph or laser system application
3瞬間信號分析軟體以便與色譜或激光進樣系統等連用。The research on data processing method of multi - spectral thermometry for the measurement of the true temperature and spectral emissivity of high temperature and ultrahigh temperature targets has been supported by the national natural science foundation of china ( no. 60377037 )
多光譜測溫數據處理方法研究是由國家自然科學基金(編號: 60377037 )資助,應用亮溫逼近法和連續測量法解決高溫及超高溫目標真實溫度及物體的光譜發射率測量問題。The data acquisition and analysis system combined with the bluetooth wireless data transmissions module, can realize different mode data acquisition on eight channels and pid control on two channels, and the data that were acquired can be processed by many kinds of processing methods just as signal pretreatment, signal trend detected, classic spectrum analysis, modern spectral estimation and self - suit signal filtering
該數據採集分析系統和藍牙數據採集模塊相結合,可以實現8路不同模式(連續模式、點檢模式等)數據採集、 2路pid控制功能,並能對採集到的數據進行多種分析系處理(信號預處理、信號趨勢檢測、經典譜分析、現代譜分析和自適應濾波等) 。The method using the part imitate extract the continuous spectrum of the signal spectrum, than extract line - spectrum from the relatively flat line - spectrum by subtract it from the former spectrum
該方法利用分段擬合方法擬合出信號功率譜的連續部分,從原始功率譜中減去連續譜得到拉平的線譜分佈,然後進行線譜特徵提取。Since the spectrum of the helicopter noise contains wide band continuous component and narrow band line component, we can use the wide band signal detection method or narrow band signal detection method. both detection methods are discussed
直升機噪聲既含有寬帶連續譜成分,又有很強的窄帶線譜分量。根據直升機噪聲的特點,我們既可以採用寬帶能量檢測,又可以採用窄帶線譜來檢測直升機信號。By studying the discrete fourier transform properties of the band - limited digital signal, the authors introduce alternating projection neural networks into the paper, expand apnn ' s application scope from real field to complex field, and present several important conclusions on apnn. analyzing and discussing network ' s tolerance to noise, convergence rate and the spectral leakage problem of the truncated signal expected to be extrapolated by using these conclusions, the paper presents an extrapolation algorithm for band - limited signals based on alternating projection neural networks. a lot of simulation experiments show that the algorithm is effective. in addition, the algorithm is also effective to spectrum extrapolation. owing to adopting network structure, the algorithm is prone to parallel computation and vlsi design, and consequently can satisfy real time military processing needs
本文通過對頻帶受限數字信號的離散傅立葉變換特性的研究,引進了交替投影神經網路,並將其應用范圍從實數域拓廣到復數域,且給出了在復數域仍然成立的若干結論.運用這些結論,在對網路噪聲抑制、網路收斂速度及待外推信號因截斷而造成頻譜嚴重外泄問題的分析與討論的基礎上,提出了一種基於交替投影神經網路的外推演算法.模擬實驗表明該方法是行之有效的.另外,該演算法對頻譜外推同樣適用;由於它採用全互連神經網路結構,易於并行計算和vlsi實現,從而可滿足軍事上實時處理的需要Chaotic signal with continuous wide band frequency spectrum is not periodic and is similar with noise signal. these properties make it suitable to secret communication
由於混飩信號的非周期,連續寬帶頻譜,似噪聲等特點,特別適用於保密通信領域。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。The moving manner of reciprocating i. c. e. shows its working processing of shock characteristic, simultaneously generates wild vibration and noise signal and often changes its operate speed. so it ' s difficult to get unique and simple spectrum unlike a rotary machine
內燃機往復式活塞和曲柄連桿機構的運動方式,決定了它具有沖擊特點的工作過程,並且在實際應用中這種過程還是變工況的,它所產生的振動與噪聲信號十分雜亂,不像旋轉機械那樣具用簡潔的頻譜特徵。In the highly crowded hf band, available continuous bandwidth is very narrow, this threaten the viability of hf radar based on the continuous spectra signal system seriously
在擁擠的高頻頻段,可用的連續帶寬比較窄,基於連續譜信號體制的高頻雷達的生存能力受到嚴重威脅。2 a mathematical model of the reflected signal based on the frequency modulation continuous wave ( fmcw ) radar, solving the frequency - azimuth estimation of coherent signals by spatial smoothing technology, comparing the resolution of the object based on two - dim music method and that based on two - dim fft
2討論了在接收dbf條件下,回波信號的二維譜估計技術。建立了基於調頻連續波體制雷達下回波信號的數學模型,並將空間平滑技術推廣到時-空二維譜估計,解決了相干信號源的頻率-方位估計問題。分享友人