无线电监控中改进型注水功率分配算法的研究

在认知无线电中,无线电监测系统具有对无线电发射设备进行监测、搜索、取证、压制和警示等功能,能有效对非法无线电信号进行干扰阻断,在非法电台管制、维护无线电安全等工作中发挥着重要的作用。在无线电压制中,传统的注水算法根据不同子信道的信道条件实现压制功率的分配,它要达成的目标是使系统的总体吞吐量目标最大化。基于此,提出了一种改进的离散型注水功率分配算法,构造了对限制干扰信号信噪比,最大化压制非法信号总数量的优化模型。该改进算法能更稳健地对不同调制方式的信号进行有效的压制干扰。仿真实验结果进一步表明了改进型注水分配算法的实用性。

Improved water filling power allocation algorithm in radio monitoring environment

Based on the cognitive radio, the function of radio monitoring system includes monitoring the radio transmitting equipment, searching, forensicsing, repression and warning illegal radio signal interference. The radio monitoring plays an important role in the area of illegal radio control and maintenance of safety radio. This paper analyzes the existing power allocation algorithm and proposes a discrete target power allocation of water filling algorithm to improve the performance of power allocation. Finally, the computer simulations illustrate the performance on strengthening monitoring ability in the real environment.