HF superdirective smart antenna system for interference suppression

Abstract

In this work, Wuhan University has proposed a vehicle mounted HF smart antenna system, which is used for anti-interference communication. Compared with existing work, the novelty of this work is as follows: 1. Propose a IF-based DBF hardware architecture, which has better stability and is easier to achieve channel expansion; 2. Verify the performance and limitation of existing superdirective beamforming method via field tests. 3. Propose and verify an effective anti-interference method by nulling technology. The experimental results prove that the system has good antiinterference performance.

Adaptive Beamforming Algorithms for Smart Antenna System

“…With the demand increase of the capacity to mobile communication systems and scarce spectrum resources, smart antennas are used to resolve co-channel interference, multiple access interference, multipath fading and other issues, as a new application to airspace resource development [1].The future fifth generation (5G) mobile network is aiming to provide a significant capacity increase compared to any current cellular solutions. The demand for increased capacity in wireless networks motivated recent research toward wireless systems that exploit space selectivity.…”

Robust Superdirective Beamforming Under Uncertainty Set Constraint

“…Under this condition, low efficiency becomes an acceptable index. Further, some constrained gain optimization methods are developed [11][12][13][14][15][16][17]. In summary, the common attribute that they share is constraining other indexes such as SNR, sensitivity factor on the basis of maximizing directive gain.…”