輸出信噪比 的英文怎麼說

中文拼音 [shūchūxìnzàobǐ]
輸出信噪比 英文
output signal-noise ratio
  • 輸 : Ⅰ動詞1 （運輸; 運送） transport; convey 2 [書面語] （捐獻） contribute money; donate 3 （失敗） l...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 輸出 : 1 （從內部送到外部） export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. Relations between the signal - to - noise, sensibility, demagnetizing factor, output of fluxgate sensor with its diameter, thickness and turns of core are discussed in this paper. the author of this paper also concluded some basic principle for the designing of fluxgate sensor. the author designed and produced two dimension sensors to prove the possibility of the miniaturization of fluxgate sensor

    本文還分析了小型化傳感器的實現可行性，分析了磁通門傳感器的信噪比、靈敏度、退磁系數、感應輸出與傳感器磁芯直徑、厚度和磁芯匝數的關系，論證了傳感器小型化的可行性，總結了在設計磁通門傳感器時所應遵循的基本原則，並且設計製作了兩種尺寸的傳感器，從實驗角度論證了傳感器小型化的可行性。
  3. Again call the the ratio, namely the electric voltage of the enlarger s exportation signal with at the same time output s voice ratio for electric voltage, usually use the decibel number to mean. the equipments s letter the ratio is more our output of high enunciation is more little. by any large, letter the ratio is more big, and the elucidation is in the in the signal a the quantity for more smallly, voice returning putting is more high, otherwise contrary. letter the ratio should be generally not lower than 70 dbs, high the letter of the true box the ratio should attain 110 dbs are above

    又稱為訊噪比，即放大器的輸出信號的電壓與同時輸出的噪聲電壓的比，常常用分貝數表示。設備的信噪比越高表明它產生的雜音越少。一般來說，信噪比越大，說明混在信號里的噪聲越小，聲音回放的音質量越高，否則相反。
  4. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  5. Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function. it is shown that the two methods both have an excellent performance of blind detection. the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise, and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived

    通過研究提出了兩種線性調頻信號的檢測方法?基於循環自相關函數包絡的檢測方法和基於循環自相關函數的相關函數包絡的檢測方法，兩種方法均可實現信號的盲檢測，有良好的檢測性能，文中還分析了加性噪聲及存在乘性和加性噪聲情況下兩種檢測方法的性能，推導出了輸出信噪比公式。
  6. In improved uep scheme, the syntax elements belonged to luminance parts and chrominance parts was reassigned to different data partitions. those packets containing syntax elements belonged to luminance parts were got error protection at high level so as to guarantee their correctness during transmitting in error - prone network. simulation has shown that using proposed scheme, the packing tradeoff is decreased 8240 bytes in error - free channel and also the output bits and bit rate of coded video stream are decreased 2. 70kbits and 0. 33 kbps respectively

    模擬實驗表明，本方案能在無噪通道中有效降低編碼器端8240位元組的打包開銷和2 . 70kbit的輸出比特數以及0 . 33kbps的比特率，而在有噪通道中可使解碼輸出重構視頻圖像的視覺質量得到一定程度的提高，亮度分量峰值信噪比可增加近1db 。
  7. Sigma - delta modulator, combined with oversampling, effectively attenuate the in - band quantization noise in the output signal and enhance the signal - to - noise ratio ( snr ) through the shaping of the quantization error

    調制器與過采樣相結合，對量化誤差噪聲進行整形，有效衰減輸出信號的帶內量化噪聲，提高了輸出帶內信噪比（ snr ） 。
  8. The theory of laser range finder is firstly introduced in this paper. then based on the laser radar ranging theory, the laser radar ranging equation, the effect of the travel characters of the laser in the air on the measurement and the laser ranging snr equation are discussed

    本文首先介紹了激光測距原理，然後從激光雷達測距理論出發，以激光雷達作用距離方程、激光的大氣傳輸特性對測距的影響、激光雷達的信噪比作為理論基礎，進行了方案設計。
  9. With the noise being added to a proper value, the system will show shochastic resonance and enhance the output signal. the sr technology is better than the traditionary signal detecting method. the best virtue of it is using the noise to enhance the capability of detecting the weak signal. and it will not harm the signal at the same time

    隨機共振系統是一個非線性系統，在一個小的周期性調制信號作用下同時輸入噪聲和信號，當噪聲增強到某一強度的時候，信噪比不僅不會降低，相反系統會產生隨機共振從而使輸出信號得到顯著的增強。
  10. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面波機理的基礎上，求出了線光源激勵的超聲振動的位移表達式，發現線光源激勵的近場區表面波具有波形好，信噪比高，指向性好，幅度強等特點。通過理論推導，得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比，並與入射角和散射角有關；適當減小cfpi的帶寬，增加腔長，增大鏡面反射率，或者減小檢測入射角都可以提高系統的信噪比。
  11. Simulation results demonstrate that the algorithm not only has fast convergence and high accuracy, but also can improve the output snr greatly

    模擬實驗表明，該演算法具有快速收斂性能和高精確度等優點，能夠大大提高分離后的輸出信噪比。
  12. Under the condition of " comparatively weak correlation between the two noises involved, coherence function is used as a frequency domain amplification factor for improving snr of the output signal to the filter and the speech enhancement effect. meanwhile, a real - time recursive algorithm is put forward in substitute for current algorithms based on short time fourier transform. the new algorithm will simplify computations and will be suited for real - time implementation together with the adaptive systems

    接著針對上述nanc系統兩路輸入信號噪聲相關性弱的情況，用相干函數作頻域增益因子來提高輸出信噪比與改善語音增強效果，同時，通過一種實時迭代演算法解決了短時傅氏變換計算量大的問題，簡化了計算，便於實時處理與實際應用。
  13. Stochastic resonance has attracted the attentions in many fields of science in recent decades, but it is a new method and theory in signal processing. in context of signal processing, for signal transmission by nonlinear systems, stochastic resonance is commonly described as an increase hi the signal - to - noise ratio ( snr ) at the output, which is obtained through an increase of noise level or tuning system parameters

    從信號處理的角度來講，隨機共振是在非線性系統信號處理中，輸入為強噪聲背景下的微弱信號，系統輸出以適宜的物理量來衡量，如信噪比，通過調節輸入噪聲強度或系統參數，都可使得系統輸出信噪比達到一個最大值，此時，稱信號、噪聲和非線性系統所產生的協同現象為隨機共振。
  14. The convergences of these algorithms are proved in theory. their output signal - to - noise ( snr ) is derived and bigger than that of the traditional adaptive line enhancer ( ale ). simulation with the torpedo - radiated data indicates that the proposed algorithms are much better than the ale and the short - time correlation based adaptive line enhancer ( scbale ) in suppressing gaussian noise and enhancing spectrum feature

    對該演算法的收斂性能進行了嚴格的證明，推導了該演算法輸出信噪比的計算公式，證明了該信噪比總是大於基於lms的自適應線譜增強器的輸出信噪比，定義了評價演算法性能的若干參數。
  15. The pseudo - random fsk / psk multi - modulation signal and the partly - matched processing signal remain the information of the target of interest. compared with the other processing methods, the partly - matched procession could depict the target ' s information effectively, and could get a higher output snr under a noisy environment. in this dissertation, the deduction and the simulink on the computer of the average ambiguity function of the pseudo - random fsk / psk multi - modulation signal are presented. also, to the partly - matched procession, analysis in theory and simulink on computer are presented. the partly - matched procession applied in radar field is also discussed

    較其它處理方法，非完全匹配處理能有效的突出所觀測目標的信息，以及在加噪情況下，其具有高的輸出信噪比。在論文中，對偽隨機fsk / psk復合調制信號的模糊特性進行了推導與模擬，對非完全匹配處理方法進行了理論上的分析以及計算機上的模擬驗證，討論了其在雷達中的應用。
  16. In the fifth chapter analyses the idgps system for mobile robot. the paper deduces the mathematics modal to estimate the position accuracy of idgps data and to use fuzzy theory according to the hdop and the snr3 to solve the surveying position answer

    第五章全面分析了移動機器人idgps系統，利用模糊數學理論，以衛星幾何精度因子和信噪比為因素，給出了idgps系統輸出數據可信度的模型。
  17. The focus, field of view and transmissivity of the optical system of the receiver are analyzed. a high - speed transimpedance amplifier circuit is designed with optimized noise. through the noise model

    設計了一種噪聲優化的高速跨阻前置放大電路，根據跨阻放大電路的噪聲模型詳細分析了輸出噪聲電壓、信噪比和信號動態范圍。
  18. A kind of mud based on transversal equalizer is recommended, and the performance analysis of ds - cdma systems based on that mud has been done under synchronous channels. then the expression of output signal is deduced. also, the relations among sinr of output signal, snr and correlation matrix of spread code the least mean square error ( lms ) adaptive algorithm is applied to the mud

    論文引入基於橫向均衡結構的多用戶檢測器，用矩陣方法推導了awgn通道下、同異步系統中信號輸出表達式，依據最小均方差準則，討論了同步方式下檢測器的輸出信號干擾比與信噪比、擴頻碼相關陣以及用戶功率大小等因素間的關系。
  19. In the broadband incoherent beamspace high resolution method, the outputs of mvdr beamformers are used to suppress the interference from outside the beam coverage region in each subband. computer simulation results show good performance at low signal to noise ratio ( snr )

    該方法克服了基於預成恆定束寬波束輸出的寬帶相干高分辨處理方法不能有效抑制波束區域之外強于擾的不足，模擬結果表明該方法在低信噪比具有良好的性能c
  20. It is demonstrated that the theory and the method presented here can markedly improve the output snr, and minimize phase lag as well as the distortion of the system output signal with multi - frequency. a whole framework for multi - frequency signal processing is formed, including the methods of selecting system parameters and signal recovery

    對于帶噪聲的多頻模擬信號，參數調節隨機共振方法能夠提高系統的輸出信躁比，並減小多頻模擬信號的波形畸變和相位延遲，本文給出了系統參數調節方法和信號反演關系，從而形成了較為完整的模擬信號處理方法。
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