過濾噪聲 的英文怎麼說

中文拼音 [guòlǜzàoshēng]
過濾噪聲 英文
filtered noise
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 濾 : 動詞（除去液體雜質） filter; strain
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 過濾 : [工業] filter; filtrate; screening; colation; filtration; filtering; lautering; colating; straini...
  1. This thesis deals with the application of image segmentation to the automatic identification of a bar code image with a complex background. the bar code image is segmented by the program which is coded by vc + + 6. 0, then by image erosion, the background such as characters etc is processed, yielding isolated points which are filtered by a median filter. the relative position of the bar code does not change

    本論文將圖像分割應用在有復雜背景的條碼圖像自動識別上，運用vc + + 6 . 0編寫的程序，處理分割的條碼圖像，然後用圖像腐蝕的方法，處理圖像上的文字等背景使其變成一些孤立點，再通過中值濾波去除圖像上的噪聲點，此時圖像中條碼的相對位置不變。
  2. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  3. The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed

    將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。
  4. 3 ) for weak noise interferogram or filtered interferogram, dyadic wavelet can be used to detect fringe edges. a gvf snake model was used to link discrete edges, the linked edges were kept well accordance with fringes of phase map. 4 ) phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map

    4 ）對于低噪聲情況下或濾波后的干涉條紋圖，在基於邊緣檢測的相位解纏過程中，利用snake模型可以高效準確的實現邊緣點的連接，所連接的邊緣線與干涉條紋很好的吻合，可將連線的精度控制在三個像元。
  5. Note : to reduce noise, install an engine intake filter and use a suitable expansion muffler

    注:為減少噪聲，請安裝進汽過濾器和適當的消音器。
  6. In light of highly dependence among steps of fingerprint preprocessing, we analyzed the whole process of fingerprint preprocessing, proposed new approaches for image preliminary filtering and the design of orientation filter, and got satisfactory results of preprocessing on the fingerprint containing gauss white noise

    由於指紋預處理的各個環節之間具有很強的相關性，本文對其全過程作了系統的分析，對其中的圖像初濾波和方向濾波器設計的問題提出了新的見解，並對含高斯白噪聲的指紋圖像取得了較好的預處理效果。
  7. In order to better detect the image edge information, firstly, non ? linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filter, and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately

    在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。
  8. In order to better detect the image edge information, firstly, non - linear median filter technology of characteristic direction was applied to filter out the gauss noise ; secondly, ( 3, 1 ) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filters and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection ; at the same time, floating threshold was defined and applied to the image edge detection, and the image edge position was located accurately

    在激光探測系統中，微弱的回波圖像淹沒在強背景噪聲中，為更好地檢測這類含噪圖像的邊緣信息，首先應用特徵方向非線性中值濾波技術，濾去高斯噪聲；其次，選擇（ 3 ， 1 ）雙正交樣條小波作為原始小波濾波器，採用提升方案構造最優雙正交小波濾波器，應用構造的雙正交小波進行多尺度小波邊緣檢測；同時，通過定義浮動閾值，並應用於圖像邊緣檢測，較準確地定位了邊緣位置。
  9. In order to improve the quality of the voltage signals, this paper has adopted the scheme of three phases and six organs in signal - generator part, which can eliminate the errors caused by the assembly warp and the zero shift of organs. this paper also has analyzed the distribution and varying rules of the magnetic field in the signal - generator part, then based on the conclusion of the analysis improved the structure of signal - generator, which could completely eliminate the noise signal caused by the roughness of the face on the magnetic steel ring. the improvement not only met the requirement of this study, but established the theory foundation for the super - high precision magnetic encoder in future research

    因此，為提高原始電壓信號的質量，本文採用三相六元件的信號發生方案，通過差分處理濾除了由於裝配偏差和零點漂移帶來的信號誤差;本文對編碼器信號發生結構進行了磁場分析，依據磁場分析的結論對編碼器常用的信號發生結構進行了改進，改進后的結構利用積分原理在理論上能夠完全消除信號中由磁鋼環表面粗糙度引起的信號噪聲，進一步提高了信號質量，此結構不僅滿足了本課題的需要，而且為今後研製超高精度的磁電式編碼器奠定了理論基礎。
  10. In image preprocessing, image quality is improved by using mathematical morphology to remove background of the image, making gray - scale transformation to enhance contrast and smoothing processing to filter noise

    本文運用形態學運算消除背景、進行灰度變換增強對比度和進行平滑過濾噪聲來完成圖像的預處理。
  11. 5 a multi - thread software cooperated with smp ( 2 cpu ) hardware performs the image - preprocessing correlation and post - processing synchronously, thus an automatic working module is realized. 6 systematic designed software, including grabing sarnies constructing rfl diging roi, and trainning ann offline and inline modules, has passed the practical tests which indicates that the opr could reach the recogniton possibility above 85 % and decrease the false alarm in the environment of high noise low contrast and multi - objects. and these are proved stable and repeatable in statistics, and so an advanced progress toward practical systems is achieved

    6 、系統化設計的軟體，包括了樣本採集、參考濾波器庫構成、相關平面的roi採集，以及ann脫機訓練、 ann聯機運行的軟體功能模塊，在實時運行的測試結果中表明了該opr系統對處于高噪聲、低反差、多目標的惡劣條件下，對三維畸變目標的判識率（ > 85 % ） ，降低了虛警率，並通過大量的實驗數據證明了該系統各項指標的穩定性和可重復性（從統計意義上講） ，向實用系統邁進了一大步。
  12. In order to filter out the noise contained in effective optical signal, a new method using the blazed grating to enlarge the angle difference between noise and effective signal, and getting through the iris to get the effective signal was put forward

    摘要為了濾除有效光信號中的光噪聲，本文提出了一種利用光柵的閃耀特性將噪聲和有效信號之間的夾角角度差放大，再通過光闌得到有效光信號的方法。
  13. On the basis of the chavacteristic that the interferometric fringes have minimum gradient in the tangent direction, this paper employs the spin filtering with curved windows along the fringe tangent direction for interferometric phase images, and its feasibility and efficiency in keeping the fringe information, suppression the noise and improving the unwrapping precision are proved through comparing the different filtering methods and the corresponding phase unwrapping results

    文中根據干涉條紋在切線方向變化最小的特點，利用沿切線方向的曲線窗口對干涉相位圖進行旋濾波降噪，並通過對比不同的濾波結果及相應相位解纏結果，證明了旋濾波在保持條紋結構信息，消除噪聲和提高相位解纏精度應用中的可行性和有效性。
  14. Secondly, ground on the duct noise control, the delayed - lms algorithm, which is actulized easily, is brought forward, then the simulation on pc is achieved. it is shown from the computer simulation that for the single frequency noise, there will be a good effect when choosing the suitable parameters ; but for the narrowband noise, the effect will become worse with increasement of the bandwidth. this result is helpful to analyze the parameters influencing anc

    結果表明： （ 1 ）隨著濾波器長度的增大，系統收斂速度變快； （ 2 ）隨著值的增大，系統的收斂速度增大，但是當值超過某一范圍時會引起系統的發散； （ 3 ）次級通路的延遲數與初級噪聲頻率有關； （ 4 ）對于窄帶信號， dlms演算法可以取得一定的降噪量，但是隨著窄帶信號帶寬的增大，降噪效果明顯變差。
  15. The algorithm that we study is based on dwt and svd. the main merit of the algorithm is the capacity of the watermarking information that is hid into the image is much more than the capacity of the random signal and two - value image

    經過實驗模擬，把該演算法能夠經受住噪聲、中值濾波、壓縮、高通濾波、低通濾波等的處理，具有很強的魯棒性。
  16. We can reduce the isi and noise by elaborately designing transmitting filter and the receiving filter when the channel is known and unaltered. however, the factual channel is time - varying and not known entirely. so the isi is always existent

    在通道特性已知且恆定的情況下，通過精心設計發送和接收濾波器就可以消除碼間干擾和使噪聲的影響最小，但實際通道既不可能完全知道，也不可能恆定不變，系統碼間干擾總是存在。
  17. On the basis of extensive reading and research of theory of the wavelet, it is presented a practical method based on odd theory of wavelet analysis to remove the white noises from transient fault current traveling waves of high voltage transmission line via multi - size analysis of wavelet

    本文在廣泛閱讀和深入研究小波理論的基礎上，論文提出了一種基於小波分析的奇異性理論對通過小波多尺度變換的高壓輸電線路故障電流暫態行波信號進行白噪聲濾除的實用方法。
  18. These new morphological operators can resist noise and have good merit, which not only have good location but also keep image detail. experiment proves that these operators can well detect image edge

    這些新運算元在使用同一對結構元處理中既具有定位能力又具有細節保留功能；抗噪型運算元能很好的過濾噪聲檢測出圖像的邊緣。
  19. The correlations between measurement noises and processing noises are added to the gain matrix of tracking filter, so information that can describe multi - sensors fusion systems is increased

    在跟蹤濾波器的增益陣中引入測量噪聲與過程噪聲的相關量和測量噪聲之間的相關量，增加了描述多傳感器融合系統的信息量。
  20. The method can be used to filtrate the outlier data and discover clusters of arbitrary shape

    這種方法可以用來過濾「噪聲」孤立點數據，發現任意形狀的簇。
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