Maximum attenuating speed D of side lobe peak value.
最大的旁瓣峰值衰减速度D。
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)。
And a new adaptive side lobe cancellation algorithm is also discussed.
探论了一种新的自适应天线旁瓣相消算法。
Generally, side lobe level of a sparse-array at arbitrary position is high.
任意位置稀布阵通常具有较高的副瓣。
However, due to the excrescent side lobe, the current drive efficiency is lower.
但由于存在多余副瓣,驱动效率较低。
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。
With the aid of a computer, curves of beamwidth and side lobe versus the antenna parameters are plotted.
并借助计算机绘出了主瓣宽度和副瓣电平与天线主要参数的关系曲线;
The lab analysis showed the correlation wavelet of log-partitioning sweeping signal has minimum correlation side lobe.
实验室分析表明,对数分段扫描信号的相关子波有着极小的相关边叶。
Classical weighting window functions and spectra modification are adopted to suppress side lobe in previous researches.
已有研究多采用经典窗加权和频谱修正进行旁瓣抑制处理。
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。
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。
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。
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。
It is concluded that an offset feed parabolic antenna has the advantage in side lobe suppression over central feed parabolic antenna.
结论显示:偏角馈入抛物面天线较中心馈入抛物面天线在抑制远旁瓣方面有优势,在做低仰角扫描时不会产生远旁瓣回波;
Because the side lobe of phase array antenna is on the high side, it will be reconnoitred and jammed easily by the electronic warfare system.
相控阵雷达由于阵列天线副瓣偏高容易被电子战系统进行副瓣侦察和干扰。
Theoretical analysis showed that only to improve the precision, resolution and stability of phase delay. It can significantly inhibit side lobe.
理论分析显示,只有尽力提高相位延时的精度、分辨率和稳定性才能显著地抑制旁瓣。
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。
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。
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。
Result indicates that the spectrum gained from using W-O way comprises much fewer side lobes and achieves higher energy ratio of main lobes to the first side lobe.
结果表明,W - O方法得到的信号频谱比传统加窗具有更少的旁瓣干扰和更高的主瓣-第一旁瓣能量比。
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。
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。
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。
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。
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。
The planar slot array antenna can satisfy a radar screen's request for antenna high gain, low side lobe, small volume, and light weight etc. So it gets extensively applied in the airborne radar.
平板裂缝天线可满足雷达系统对天线增益高、副瓣低、体积小、重量轻的要求,所以在机载雷达中得到广泛应用。
The analysis of the virtual echo such as three -body scatter spike echo, the secondary echo, the side -lobe echo is given echo based on observational re cords of severe convectional weather in 2003.
根据2003年几次强对流天气的观测资料,对其中三体散射长钉、二次回波旁瓣回波等虚假回波进行了分析。
The emphasis in this paper was corner reflector antenna with high-gain, narrow beam and low side-lobe.
选用方向性好、增益高、旁瓣低的角形反射器天线作为本论文的研究重点。
The emphasis in this paper was corner reflector antenna with high-gain, narrow beam and low side-lobe.
选用方向性好、增益高、旁瓣低的角形反射器天线作为本论文的研究重点。
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