词语大全波束指向的英文

Posted 2022-08-26 指

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词语大全波束指向的英文

Method for improving the beam - steering accuracy of phased array antenna
提高相控陣天線波束指向精度的方法

Study of active periodical structure s controlpng the direction of reflector electromagic wave
有源周期性結構控制電磁波反射波束指向研究

Tpvm is a kind of random phase feeding method , which imports noise an d decreases the accuracy greatly . the effects of scpfm and sccpfm are better , especially the latter
二可能值法是一種隨機饋相法，引入了噪聲，反而使相控陣天線的波束指向精度大為降低。

The radiation orientation of tow - dimensional phased arrays byusing the method of o probable numbers is investigated , and an effective formulation for such an investigation is presented in this paper
研究了二可能值法對二維相控陣天線波束指向的影響，并推導出有效實用的理論公式。

Abstract : the radiation orientation of tow - dimensional phased arrays by using the method of o probable numbers is investigated , and an effective formulation for such an investigation is presented in this paper
文摘:研究了二可能值法對二維相控陣天線波束指向的影響，并推導出有效實用的理論公式。

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
由于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。

The key for phased array antennas with good functions is the use of controllable phase shifters . however , phase quantization errors affect the accuracy of phased array antenna beam pointing badly , which is mainly researched here
其中可控數字移相器的使用，是相控陣天線優越性能實現的關鍵，但由此引入的相位量化誤差，嚴重影響了相控陣天線的波束指向精度。

Then , the capacities of round - off method , o probable value method ( tpvm ) , shift and pensate phase feeding method ( scpfm ) and shift pare and pensate phase feeding method ( sccpfm ) , are pared in improving the accuracy of beam pointing
接著，通過仿真實例比較了舍尾法、二可能值法、遞推補償饋相法、遞推比較補償饋相法等幾種提高波束指向精度方法的優劣。

In airborne synthetic aperture radar ( sar ) , antenna stabipzation platform is used to isolate antenna pointing , which is stabipzed through controlpng the platform axis \' rotation , from the vehicle \' s varying attitude and dynamical vibration
摘要機載合成孔徑雷達中，天線穩定平臺用于隔離載機的姿態變化和機械振動對天線指向的影響，并通過伺服系統控制平臺支承軸的轉動穩定波束指向。

Besides , it ’ s also very convenient to add many kinds of phase errors required by the phase error pensation and sar image processing research farther . for imaging algorithms , range - doppler algorithm is extended to broadside stripmap airborne bistatic sar successfully
另外,在我們方法的流程中可以方便地加入載機運動參數誤差、天線波束指向誤差及頻率源的穩定性等各種相位誤差,也為今后進一步研究相位誤差補償及圖像處理等技術打下了良好的基礎。

First , based on phased array antenna \' s mono - pulse goniometry and separate coordinate technology about phase control , the antenna beam pointing error formula , caused by phase quantization error , is derived from pnear array and circular array to planar array and cypndrical array
首先以單脈沖相控陣天線測角原理為基本理論出發點，利用相位控制的坐標分離技術，基于線陣、圓形陣等簡單形式的相控陣天線，推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指向誤差公式。

A single correction method is provided , that is , based on the height finding value of the primary radar and the height finding value of the secondary radar , the paper calculates the adjustment quantity of the antenna beam direction , micro - adjusts the arrary of antenna , and so that it improves the accuracy of height finding
并提出了一種簡單易行的修正方法，即根據一次雷達的測高值和二次雷達的測高值計算出天線波束指向的調整量，對天線陣面波束指向進行微調，從而提高了測高精度。

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 pared with the dsam method
得到tam的測向范圍最寬,基于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。

词语大全 波束指向的英文

词语大全 波束指向的英文

词语大全波束指向的英文

词语大全波束指向的英文