| 1. | Method for improving the beam - steering accuracy of phased array antenna
提高相控阵天线波束指向精度的方法 |
| 2. | Study of active periodical structure s controlling the direction of reflector electromagnetic wave
有源周期性结构控制电磁波反射波束指向研究 |
| 3. | 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
二可能值法是一种随机馈相法，引入了噪声，反而使相控阵天线的波束指向精度大为降低。 |
| 4. | The radiation orientation of tow - dimensional phased arrays byusing the method of two probable numbers is investigated , and an effective formulation for such an investigation is presented in this paper
研究了二可能值法对二维相控阵天线波束指向的影响，并推导出有效实用的理论公式。 |
| 5. | Abstract : the radiation orientation of tow - dimensional phased arrays by using the method of two probable numbers is investigated , and an effective formulation for such an investigation is presented in this paper
文摘:研究了二可能值法对二维相控阵天线波束指向的影响，并推导出有效实用的理论公式。 |
| 6. | 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
由于对天线波束指向的调整在很小的范围内，故对天线的副瓣及波瓣宽度指标的影响可忽略，从而不会影响到雷达系统的基他性能。 |
| 7. | 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
其中可控数字移相器的使用，是相控阵天线优越性能实现的关键，但由此引入的相位量化误差，严重影响了相控阵天线的波束指向精度。 |
| 8. | Then , the capacities of round - off method , two probable value method ( tpvm ) , shift and compensate phase feeding method ( scpfm ) and shift compare and compensate phase feeding method ( sccpfm ) , are compared in improving the accuracy of beam pointing
接着，通过仿真实例比较了舍尾法、二可能值法、递推补偿馈相法、递推比较补偿馈相法等几种提高波束指向精度方法的优劣。 |
| 9. | In airborne synthetic aperture radar ( sar ) , antenna stabilization platform is used to isolate antenna pointing , which is stabilized through controlling the platform axis ' rotation , from the vehicle ' s varying attitude and dynamical vibration
摘要机载合成孔径雷达中，天线稳定平台用于隔离载机的姿态变化和机械振动对天线指向的影响，并通过伺服系统控制平台支承轴的转动稳定波束指向。 |
| 10. | Besides , it ’ s also very convenient to add many kinds of phase errors required by the phase error compensation and sar image processing research farther . for imaging algorithms , range - doppler algorithm is extended to broadside stripmap airborne bistatic sar successfully
另外,在我们方法的流程中可以方便地加入载机运动参数误差、天线波束指向误差及频率源的稳定性等各种相位误差,也为今后进一步研究相位误差补偿及图像处理等技术打下了良好的基础。 |
