基于干扰模型的变换域优选算法研究

The Optimization of Transform Domain Algorithm Based on the Jamming Models

针对无人机数据链抗干扰能力差的问题,提出了一种基于干扰模型的变换域优选算法。首先对通信干扰进行系统分类,并针对干扰信号和干扰样式分别建模,之后,对不同的变换域进行梳理和优缺点分析,最后利用干扰特性和变换域特点,提出基于干扰模型的变换域优选算法,提高了处理混合干扰的能力。仿真结果证明了干扰模型与变换域优选的合理性,且新算法较单一变换域处理可有效降低误码率,在误码率为0.1时可获得比单一变换域处理高约1 dB的性能增益。

To improve the poor performance for anti -jamming of UAV＇s data link, an optimization algorithm of transform domain is proposed based on the jamming models. The communication jamming is classified systematically and the models are based on the jamming signals and patterns. The different transform domains are analyzed. Simulations show that the jamming models and the optimization algorithm of transform domain are effective, and the new algorithm can effectively reduce the bit error rate. The new algorithm can get performance gain 1 dB more than the single transform domain method when the bit error rate is 0. 1.