民航地空通信双通道干扰抑制系统

民航甚高频通信经常受到各种各样的干扰,严重影响了民航飞行的正常进行。为此,首先建立了符合甚高频通信特点的实际模型,然后建立了双通道干扰抑制系统,并在满足窄带假设地前提下提出了一种基于递归最小二乘恒模阵列的的抗干扰方案,这种阵列比以往使用最陡下降恒模阵列具有更快的收敛速度和数值稳定性。计算机仿真数据实验和实际采集的数据实验也证明了这种方法的有效性。

Air-ground Communications Dual-channel Interference Suppression System of Civil Aviation

The very high frequency （VHF） air-to-ground communication of civil aviation often suffers from the radio interference, thus resulting in serious threat to the civil aviation safety. Firstly a practical model suitable for VHF communication is estavlished, then an anti-interference scheme based on recursive least-square constant modulus array is proposed. Simulation and experiment results indicate that the proposed scheme is feasible and of practical application value.