波束抑制 的英文怎麼說

中文拼音 [bōshùyìzhì]
波束抑制 英文
beam suppression
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 抑 : Ⅰ動詞（向下按; 壓制） restrain; repress; curb Ⅱ連詞[書面語]1 （表示抉擇） or 2 （表示轉折） but3 ...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 波束 : wave beam; beam; wave packet波束空間 [半] wave number space
  • 抑制 : 1 （控制） restrain; control; check; hold up; curb; stop; repress; bridle; choke; prehension; sup...
  1. Firstly, the methods to restrain the effect of ship swing are studied for two - axes shipbome radar. two different methods based on ship rectangular frame and inertial frame are proposed separately according to consistence of radar base angle and beam angle

    本文首先研究了艦載兩軸雷達系統抑制船搖的方案，對雷達天線轉角和波束轉角一致和不一致的情況，分別提出了基於甲板坐標系穩定和基於大地坐標系穩定的不同方法。
  2. Firstly, the steering vector of mainpath of desired user is estimated by using code filtering method, then dummy signals are introduced, main lobe of wave is built by using the steering vector of mainpath of desired user and side lobes is constrained by using dummy signals

    該方法首先利用碼濾波的方法估計期望用戶主徑的波達方向，然後引入虛擬信號，利用期望用戶主徑的波達方向形成波束的主瓣，並利用虛擬信號抑制旁瓣。
  3. Modern sonar systems generally use hydrophone arrays and advanced signal processing techniques to improve their detection and localization abilities, whereas beamforming plays an important role. as it is known, the conventional beamforming approach provides limited array gains and low interference suppression abilities, and cannot resolve multi - targets distributed within a small spatial region

    但是，傳統的波束形成方式所提供的陣增益有限，對干擾的抑制能力不強，且不能分辨空間小角域內的多個目標，影響了聲吶系統整體性能的發揮。
  4. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas

    該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。
  5. A genetic algorithm assisted beam tracking and forming is applied to solve the problem of tracking a continuous moving signal while suppressing a strong fixed interference

    摘要介紹了遺傳演算法在波束追蹤和成型中的應用，著重探討了該方法在解決追蹤連續信號的同時抑制固定強干擾的問題。
  6. ( 5 ) mfpic ( matched field postbeamformer interference canceller ) is proposed to cancel tow ship ' s noise. the advantage of mfpic is that it can be used to cancel the tow ship ' s noise for all arrival directions. furthermore, this new approach can be used to detect weak target, which has the same bearing angle of a strong interference

    （ 5 ）將平面波波束形成后干擾抵消與匹配場處理技術進行有機結合，探索性地提出了拖線陣聲納本艦干擾的匹配場抵消方法和匹配場處理后的干擾抵消方法，為本艦多途干擾抵消、水面強干擾抑制和水下弱目標檢測提供了新的技術途徑。
  7. Beamspace music based on mvdr beamformer outputs is proposed to remove the contribution from interferes outside the beam coverage region, so to ensure the correct estimation of target bearings inside that region. the weighted subspace fitting ( wsf ) algorithm is extended into beamspace to resolve strongly correlated signals

    對于強干擾和信源強相關的情況，提出採用基於虛擬干擾源的mvdr波束形成方法，設計得到在強干擾方向存在深凹口的波束，以抑制強干擾源。
  8. Digital signal processing technologies were used to produce spatial and directional beam in smart antennas. then the main beam aims at the coming direction of reference user and the side lobe points to the coming direction of interference user

    智能天線是利用數字信號處理技術，產生空間定向波束，使天線主波束對準期望用戶信號到達方向，旁瓣或零陷對準干擾信號到達方向，達到充分高效利用移動用戶信號並刪除或抑制干擾信號的目的。
  9. Digital signal processing technologies were used to produce spatial and directional beam in smart antennas. then the main beam aims at the coming direction of reference user and the side lobe points to the coming direction of interference user. smart antennas are classified to switching - beam and tracking - beam

    智能天線利用數字信號處理技術，產生空間定向波束，使天線主波束對準期望用戶信號到達方向，旁瓣或零陷對準干擾信號到達方向，達到充分高效利用移動用戶信號並刪除或抑制干擾信號的目的。
  10. Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified pcnn model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. secondly, pcnn is extended to pcnns, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification ; fin ally, based on the accumulative difference pictures, and the forming and transmission of pcnn wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction

    首先結合pcnn的同步脈沖發放和側抑制特性，提出了基於改進型pcnn的圖像凹點檢測演算法，該演算法是一種自適應而有效的圖像凹點檢測方法，並且較好地模擬了人類視覺系統；然後，結合信息傳遞和信息耦合特性，將pcnn擴展成pcnns （ pcnn網路群） ，提出了一種基於pcnns的圖像融合演算法，能夠將多個傳感器獲取的同一目標的圖像信息融合到一幅圖像中，有效模擬了人類視覺系統；另外，結合pcnn的同步脈沖發放特性、捕獲特性和波的傳播競爭特性，開拓地將pcnn用於模式分類中，提出了基於耦合神經元點火捕獲抑制特性的分類方法和改進的約束距離下的pcnn分類方法，前者可實現對樣本空間中任意復雜分佈訓練樣本的穩健非線性分類，而後者能夠消除訓練樣本中刺點對分類的影響；最後，結合累積差分圖像思想、 pcnn波的形成與傳播特性，通過各神經元之間連接取向來選擇與控制自動波的流向，將pcnn用於運動視覺分析中的運動軌跡模擬及運動方向檢測。
  11. The theoretical analysis shows that mz - ifog can be used to detect the rotation rate of moving objects. a systematic analysis of transfer characteristics of mz - ifog is made. performance - limiting factors, including the path - length difference, the disturbance of temperature fluctuation and stress from working environment, the quality of light source, are all discussed along with methods to reduce their effect on the output signal

    本文用系統的方法分析了mz型干涉式光纖陀螺儀的光傳輸特徵，指出了其較大的非互易性因素-臂長差的存在，分析了工作環境因素（溫度，應力） 、光源質量（輸出光束中心波長、光功率波動及偏振態波動）對系統工作性能的影響，並指出了減少系統非互易因素、抑制噪聲、提高檢測穩定性的措施。
  12. In chapter five to reconst ruct the three - dimensional object cubes, various deconvolution algorithms : nearest neighbor, inverse filtering and constrained iterative deconvolution are developed and applied to both computer generated and experimentally measured image cubes. the best results are obtained using an svd inverse fourier deconvolution algorithm with regularization for noise suppression

    第五章為了重建三維目標立方，發展了各種去卷積演算法：最近鄰、逆濾波和帶約束的迭代去卷積，並應用到計算機產生和試驗測量的圖像立方中，最好的結果是利用具有規則抑制噪聲的svd逆傅立葉變換去卷積演算法獲得的。
  13. The wsf method and ml method can be used in direction finding of coherent sources. we find that tam has the widest direction finding range while the available direction finding ranges of the dsam, sam _ isp, sam _ aisp, sam _ gsp and sam _ agsp are in a certain area centered at the look direction. the sam _ isp, sam _ aisp, sam _ gsp and sam _ agsp can change the effective direction finding ranges by adjusting their inner parameters and furthermore they can improve the sidelobe suppression effect compared with the dsam method

    得到tam的測向范圍最寬，基於后五種簡化陣列流形的測向方法其測向有效范圍均是集中在波束指向附近的一定范圍內，其中sam _ isp 、 sam _ aisp 、 sam _ gsp和sam _ agsp對應的測向范圍可通過調整內部的參數進行相應的調整，相應地較dsam也可改善對旁瓣源的抑制效果。
  14. The compensator compensates the change of polarized light, and also controls the polarized orientation. in result, we get a cavity, with the orientations of the linear polarized multi - longitudinal modes are agree. the noise of green output reducing, the cavity is steady with multi - longitudinal modes operating

    本文首次將nd ： yvo _ 4晶體應用於抑制激光噪聲的補償片法中，利用nd ： yvo _ 4晶體的線偏振特性，控制諧振腔內激光束的偏振方向，使多縱模均為線偏振，且偏振方向一致，從而減少了綠光輸出中的波動現象。
  15. However, the optimal results being a statistical average, the antenna pattern of random phasing is unsteady with the scanning angle and scanning period, so it is not easy to form the actually needed codes for control of the antenna scanning

    應用遺傳演算法對隨機饋相方案進行優化，能有效抑制寄生副瓣的出現，形成掃描空域確定的波控代碼，實現相控陣波束無慣性的精確指向。
  16. It is one of advanced technologies used in modern radar that applying adaptive algorithms to radiation pattern of an adaptive array in order to control nulls of the beam pattern and to suppress interferential signals

    在自適應天線陣的發射模式中應用自適應演算法，控制發射波束的零點位置，以達到抑制干擾信號的目的，是現代雷達採用的先進技術之一。
  17. 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
  18. This paper introduce an analytic method of incorporating state variable inequality constrains in the kalman filter. the incorporating state variable inequality constrains can improves the estimation accuracy and strong the performance of restraining the noise

    本文還提出了用約束卡爾曼濾波的方法改進跟蹤濾波器，增強濾波器抑制噪聲的能力，並給出了約束卡爾曼的基本理論、研究了方法的可行性。
  19. And some emulational results are given. these improved methods consist amplitude and phase compensate of fixed cancellation. at last we introduce a processing method of radar moving target indication all by adsp21062

    提出了相控陣雷達中一個波束位置發射脈沖數少時實現雜波抑制時對固定對消進行相位和幅度補償的改進方法。
  20. Beamforming comes from smart antenna with strengthening desired signal and suppressing inter - users interference as its typical technical superiority. it is also the base to realize sdma ( space division multiple access )

    波束形成技術源於智能天線、增強期望、抑制用戶干擾是其典型的技術優勢，也是sdma （ spacedivisionmultipleaccess ）能夠得以實現的基礎。
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