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本文研究了智能天线系统中抗干扰的盲算法。该算法从接收到的信号的协方差中得到干扰阻塞空间滤波器的系数。由于计算协方差的过程中不需要时间参考,该算法在系统因为强干扰而无法获取时间同步的情况下仍然能够工作。分析和仿真表明该算法的性能在各种干扰环境下仍然稳定,这些特性是多数其他方法所不具备的。
This paper studies the blind anti-jamming algorithm in smart antenna system. The algorithm obtains the coefficients of the interference blocking spatial filter from the covariances of the received signals. Since no time reference is needed during the calculation of covariance, the algorithm still works when the system can not obtain time synchronization because of strong interference. Analysis and simulation show that the performance of this algorithm is stable under various interference conditions, which are not found in most other methods.