释义 |
side lobe短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 旁瓣 The distance between antenna elements and element's excitation currents are used as variables to optimize the side lobe of equal space linear array firstly. 首先,以各单元馈电电流和单一阵元间距为变量,对一般天线阵进行了降低旁瓣电平的优化。 cnki The generation of far side lobe echoes for offset parabolic antenna is analysed in this article, and the experiments have proved the existence of far side lobe echoes. 分析了偏角馈入抛物面天线远旁瓣回波产生的机理,并经实验验证了远旁瓣回波的存在。 cnki The relative side lobe of sweeping signal is an important factor impacting the seismic data quality acquired by vibrator. 扫描信号的相关旁瓣是影响可控震源资料质量的主要因素。 dictall The signal effect in the conventional adaptive side lobe canceller system is studied. 首先研究了常规的自适应旁瓣对消系统中的目标效应问题。 cnki Based on uniform line array, the sonar equation of active sonar beam main lobe and side lobe interfered by noise-jammer are presented. 研究了噪声干扰器对鱼雷主动声呐的对抗原理,以等间隔直线阵为例,分别给出了干扰器对鱼雷主动声呐主瓣和旁瓣的干扰方程。 dictall Because of the travelling- wave make-up and specific design, the broader bandwidth and the lower side lobe level can be achieved. 由于采用了行波结构和特殊设计,所以能够获得较宽的频带和较低的副瓣电子。 cnki By using the generalized function in the linear array synthesis the direction diagram with approximate flat top in wide angle region and with or without a single side lobe can be obtained. 将广义函数用于线天线阵综合,可得到广角近似平顶的方向图,亦可得到具有单一付瓣和无付瓣的方向图。 cnki Cancellation gain of antenna decreases rapidly with increasing of bandwidth of interference in adaptive side lobe cancellation. 在自适应旁瓣相消技术中,天线的相消增益会随着信号带宽的增加而迅速下降。 cnki In the article, the application of genetic algorithms in low side lobe pattern synthesis is given. 其次,重点研究了遗传算法在阵列方向图综合中的应用。 fabiao In the process of genetic manipulation, encoding method is improved, fitness function is constructed not only considering nulling depth, but also the side lobe gain to maintain a certain level. 在遗传操作过程中,改进了编码方法,构造的适应度函数不但以一定的零陷深度为目标,还考虑副瓣的增益维持在一定的水平。 fabiao It can constrain frequency response of filter banks to form null at zero frequency point and to obtain minimum side lobe area. 它可强制滤波器组的频率特性在零频形成零点并使旁瓣面积最小。 cnki Maximum attenuating speed D of side lobe peak value. 最大的旁瓣峰值衰减速度 D。 cnki Minimum side lobe maximum value A. 最小的旁瓣最大峰值 A; cnki Receiving side lobe restrain was realized by compared the receiving signal extent for sum and difference beams of transponder. 通过比较询问机和差波束接收信号幅度实现接收旁瓣抑制; cnki Since this method is based on the structure of the generalize side lobe canceller, it is convenient to use its partial adaptive processing to reduce the computation load. 该方法基于广义旁瓣相消器结构,可方便地进行部分自适应,降低运算量。 cnki The array parameters are optimized using the nonlinearly constrained optimization method so that the antenna achieves side lobe suppression up and null filling down in the vertical radiation pattern. 采用约束非线性优化方法,对其阵列参数进行优化,实现了垂直面内上半空间的旁瓣抑制和下半空间的零值填充。 dictall The peak side lobe level PSLL is a key parameter of an antenna arrays, and it's a complicated and nonlinear function concerning the position of elements. 天线的峰值旁瓣电平是天线阵列的一个重要技术指标,它是关于阵元位置的复杂的非线性函数。 fabiao The side lobe restrain of sensitivity control was realized by controlling sensitivity of receiver. 通过控制接收机灵敏度实现灵敏度控制旁瓣抑制。 cnki Theoretically, a column conformal array with small size and few elements to generate a shaped beam with low side lobe and main beam with fixed width and flat top is carried out. 理论上实现了用较少的天线单元,且与小直径圆柱面共形的阵列,激励产生副瓣电平较低、主瓣有一定的宽度且顶部较平坦的波束。 fabiao This paper introduces the pulse compression, side lobe cancellation, clutter suppression, pulse accumulation and CFAR of coherent Radar signal processing. 本文介绍了脉冲压缩、旁瓣抑制、杂波处理、多脉冲积累以及恒虚警检测等雷达信号处理技术。 cnki This paper focuses on the concentric ring fractal array of the low side lobe characteristics in fractal antenna arrays. 在分形阵列天线中重点研究了具有低旁瓣特性的共心圆环分形阵。 fabiao This ratio is called as the side lobe level expressed in decibels. 这个比值叫做旁瓣电平以分贝数表示。51jiangya To overcome the signal effect, we renovate the auxiliary antenna in the conventional side lobe canceller system to two- orthogonal-channel polarization antenna. 为了克服目标效应,将常规旁瓣对消系统的辅助天线改为双极化正交天线。 cnki When Doppler frequency of target does not match the FFT bin frequencies exactly, the high side lobe appears. 当目标的多普勒频率与 FFT滤波器组不精确匹配时,会产生 FFT的高副瓣现象。 cnki |