做为一例,对中国卫星的成形波束进行了实际计算。
As an example, a shaped beam for Chinese satellite is calculated.
这种方法更有效地抑制了空间的非平稳和固定噪声比使用一个可旋转的主瓣中的2-D平面空的自适应的成形波束形成方法。
This method more effectively suppresses spatial nonstationary and stationary noise than the adaptive null-forming beamformer method by using a rotatable main lobe in the 2-D plane.
为改进卫星天线控制器的跟踪技术,提出一种基于电子波束成形的跟踪子系统改进方法。
To enhance the tracking technology of satellitic antenna controller, the article introduces a improving method based on electronic beam forming.
对重型商用车声源识别结果说明,利用最小方差无畸变响应估计能较常规波束成形更好地识别出噪声源。
Comparing the results between common beam forming and MVDR method, it shows MVDR method has higher resolution and can identify the complex noise distribution of the moving heavy d.
下行波束成形能用来限制由于高速率数据用户引起的干扰,也能改善系统性能。
Downlink beamforming can be used to limit strong interference induced by high data rate users, thereby improve the system performance.
基于自适应天线与OFDM技术,提出一种新的自适应波束成形算法,获得了最佳的阵列加权系数。
Based on the adaptive antenna and OFDM technology, a new adaptive beamforming algorithm and the optimum array weight vector were obtained.
该文提出了一种在有限反馈条件下多入单出—正交频分复用(MISO - OFDM)系统中基于误码率的波束成形方案。
In this paper, a new transmit beamforming scheme with limited feedback is presented in Multiple-Input Single-Output Orthogonal Frequency Division Multiplexing (MISO-OFDM) systems.
提出了将波束成形技术应用于超短波电台,以提高天线增益和系统抗侦收能力。
The beam forming technique is used in the UHF radio for improving antenna gain and system anti-interception.
仿真结果表明,与时频联合波束成形算法相比。相同性能要求下,其需要的射频模块的个数可减少37.5%以上。
Simulation results show that, to achieve the same performance, the number of rf chains can be reduced by more than 37.5% in comparison with joint time - frequency beamforming algorithm.
卫星波束赋形天线普遍采用阵馈抛物反射面天线和单馈成形皮射面天线。
Array-fed parabolic reflector and shaped reflector with a single feed are usually used to be contoured beam satellite antenna.
提出一种应用于机会波束成形系统的基于虚用户的调度方案。
This paper presents a novel virtual user based scheme and applies it to opportunistic beamforming systems.
当期望信号的波达方向存在不确定时,自适应波束成形器会遭受严重的性能衰减。
The adaptive beamformers often suffer severe performance degradation when there is a mismatch between the actual and presumed direction-of-arrival(DOA) of the desired signal.
在该方案中,接收端进行波束成形,发送端通过TH预编码进行用户间干扰抑制,同时采用层间轮换的用户调度机制。
In this scheme, the receivers perform beam-forming, while the transmitter suppresses the inter-user interference using the THP scheme.
并对样机的发射波束成形方向图进行了测试,结果表明超短波电台能够采用波束成形技术,并具有很广的应用前景。
The antenna patterns of beam forming are measured. The result demonstrates that the beam forming technique can be used in the VHF radio with wide application in the future.
它具有扫描角度宽,便于波束成形,结构紧凑、价格便宜便于大量生产等优点,所以在军事上和民用上有着广泛的应用前景。
It has some important advantages such as wide Angle scanning, beam shaping, compact structure and low cost. These advantages make them very well suited to a number of military or civil applications.
它具有扫描角度宽,便于波束成形,结构紧凑、价格便宜便于大量生产等优点,所以在军事上和民用上有着广泛的应用前景。
It has some important advantages such as wide Angle scanning, beam shaping, compact structure and low cost. These advantages make them very well suited to a number of military or civil applications.
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