基于区域碰撞预判的无线电抗干扰方法研究

A Collision of Anticipation Based on Area Radio Anti-interference Algorithms

针对传统的无线电通信中频率相似冲突引起干扰的问题,提出了一种基于区域信道校验碰撞预测的无线电抗干扰方法;首先构建多信道频谱共享认知无线电模型,对无线电通信中的干扰过程进行描述,对通信中的干扰信号进行相应的甄选、分配和控制处理等操作,并将其表示为空间的随机区域形式,然后利用条件证据理论对空间进行划分,运用信号属性组成非线性判别边界区域,对无线电信号进行信号可能碰撞的预测,计算干扰性碰撞的可能性,对可能产生干扰的信号干扰特征进行抑制,减少无线电通信干扰;以含容差的无线电通信系统,对电路元件单软、硬干扰特征进行排除,给出了具体诊断方法及步骤,诊断正确率达95%以上,证明了该诊断方法的有效性;另外,该方法的诊断步骤相对程式化,便于计算机实现。

In traditional radio communications, if environment other media access layer using competition to share the radio communica- tion channel way, the same channel in the process of data transfer will lead with similar frequency interference caused by conflict. In order to avoid the problem, this paper proposes a calibration based on region channel prediction of the radio anti--interference algorithm collision. U- sing the nonlinear boundary of signal attribute discriminant area, with radio signals may signal of the collision of the forecast, calculation of the collision of the possibility of interference, the disturbance signal interference may characteristics of suppression, reduce the possibility of interference. Experiments show that the algorithm is described using above the radio communication anti--interarerence operation, can effec- tively improve the radio anti--interference characteristics, the optimization effect is obvious.