sidelobe 中文意思是什麼

sidelobe 解釋
副瓣
  1. 2. the spectrum correcting technique is applied in one dimension distance sidelobe restraining successly and deal with well with this understanding of zero or low doppler frequency and without noise, mussy weaves

    2 、在一維距離旁瓣抑制中成功地應用了譜修正技術，在無噪聲、雜波干擾，零或低多普勒頻率情況下，處理效果良好。
  2. 4. the signal data collected in expteriment are taken out in emulational research of system experiment. many methods such as adding window in frequency field, eliminating static object and so on restrain the width and sidelobe of static mussy weaves and detect out the target availably

    4 、在系統實驗模擬研究中調出實驗採集信號數據，使用頻域加窗不加窗、清除靜態目標等方法很好地控制了靜態雜波干擾的幅度及旁瓣，有效地檢測出了目標。
  3. In addition to the conventional techniques such as low sidelobe antennas and displaced phased center antenna ( dpca ), there has been great interest in space - time adaptive processing ( stap ) because it can suppress clutter effectively and improve the detection performance of airborne phased array radar evidently

    除了採用低副瓣天線、偏置天線相位中心（ dpca ）等傳統雜波抑制技術，能夠有效提高機載相控陣雷達地雜波抑制能力和動目標檢測性能的空時二維自適應處理（ stap ）受到了廣泛關注。
  4. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程，分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析，推導了天線方向圖旁瓣包絡、波束寬度，干凈掃描區寬度的估計公式，給出了近軸旁瓣電平與陣列參數的關系。
  5. A patch antenna with etched holes on the ground plane is also studied. the performance of the antenna at the resonant frequency is analyzed by using the fdtd method together with the pml boundary treatment. the results show that the surface waves are suppressed greatly, the bandwidth is improved and a 1 odb reduction on the sidelobe level is achieved at the 110 and 260 directions in the e plane

    全面地研究了地面腐蝕周期圓孔結構的電磁晶體貼片天線在基波頻率處的性能，用fdtd方法並結合pml邊界處理技術對該天線所取得的研究結果顯示，本文設計的地面腐蝕型電磁晶體結構抑制了貼片天線中的表面波，增加了天線的帶寬，並有效地削弱了旁瓣，使天線的e面方向圖上110和260方向的兩個旁瓣被削弱了10db 。
  6. To solve the problem of higher range sidelobe of phase - coded radar, the method of removing big power signals with fft _ ifft is presented in this paper

    針對相位編碼雷達距離旁瓣較高的問題，本文提出了fft _ ifft法去除大功率信號來抑制距離旁瓣。
  7. Because the adjustment of antenna beam direction is in a very small range, so the effection on antenna sidelobe and beamwidth can be omitted, that is to say, it will not make any effection on other performances of the radar system

    由於對天線波束指向的調整在很小的范圍內，故對天線的副瓣及波瓣寬度指標的影響可忽略，從而不會影響到雷達系統的基他性能。
  8. That noise fm signal emalates tv sound fm signal researchs above two question about correlative detection and restrainning sidelobe. the research ' s result is compared with linear fm emulational research ' s

    用噪聲調頻信號對電視伴音調頻信號進行模擬研究上述提到的相關檢測和旁瓣抑制問題，並與線性調頻信號模擬研究相比較。
  9. Application of neural network for binary - coded sidelobe suppression

    神經網路在二相編碼信號旁瓣抑制中應用
  10. The methods of range sidelobe suppression about the lfm and bc signal are discussed in detail

    著重討論了線性調頻信號和二相編碼信號的旁瓣抑制方法。
  11. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  12. 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。
  13. Effects of random errors on the sidelobe level of a module array antenna

    隨機誤差對模塊化陣列天線副瓣的影響
  14. Continuous single tune jamming is an effective jamming to linear frequency - modulated radar. however it can not suppress signal output after being full of the sidelobe suppress filter of the jammed bi - phase coded radar, no matter how great the power of it may be

    單頻正弦波干擾對線性調頻雷達是一種有效干擾，但對於二相編碼雷達無論具有多大的功率在充滿二相編碼雷達接收機的旁瓣抑制濾波器后也不能壓制信號主瓣，因此是一種無效干擾。
  15. Robustness is the study focus of adaptive beamforming techniques because of the inevitable array imperfections in practice. a robust adaptive beamformer based on the structure of the generalized sidelobe canceller ( gsc ) is proposed in this thesis

    由於陣列天線的空間采樣誤差不可避免，自適應波束形成的穩健性是當前波束形成研究的熱點，論文提出了一種基於廣義旁瓣相消器結構的穩健的自適應波束形成器。
  16. Three algorithms for pseudo - random fsk / psk radar signals ’ sidelobe suppression such as spectrum modifying, direct mismatch filters and neural network. 3. using adsp 21160 to design dsp programs with assembly and c languages for the three algorithms mentioned above on visualdsp + + 3. 5 integrated development environment

    3 .用adi公司的sharc系列晶元adsp21160 ，在visualdsp + + 3 . 5集成開發軟體平臺上，完成以上三種旁瓣壓縮演算法實現的匯編、 c語言程序設計和調試工作。
  17. 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。
  18. Lastly, this paper discussed the realization of the three sidelobe algorithms mentioned above using adsp 21160 which is a product of adi sharc serial digital signal processor

    最後，採用adi公司sharc系列dsp晶元adsp21160n探討了偽隨機fsk / psk信號旁瓣抑制演算法的dsp實現。
  19. With the simulation and analysis using matlab, this paper studied a method to design low sidelobe fsk / psk radar signal with genetic algorithm and three algorithms for pseudo - random fsk / psk radar signal sidelobe suppression

    本文討論了一種用遺傳演算法設計低旁瓣水平fsk / psk信號的方法和三種偽隨機fsk / psk信號旁瓣抑制演算法，並用matlab進行了模擬分析。
  20. 3. in the process of restraining distance and doppler planar sidelobe, linear fm signal restrains sidelobe well, noise fm signal has definited impact on restrainning sidelobe in concrete circumstance by tring diversified methods

    3 、在二維距離-速度旁瓣抑制中，線性調頻信號抑制效果良好，而抑制噪聲調頻信號的旁瓣須根據具體情況、用多種方法進行嘗試、有一定旁瓣抑制效果。
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