摘要
提出了一种GNSS自适应实时抗干扰天线的设计实现方案。该方案基于Cholesky分解计算最小功率算法的最优权系数,提高了抗干扰处理的实时性,并且中频调零的算法实现简化了数字上下变频模块设计,在数字基带处理中仅采用一片FPGA可以进行所有运算。实际场地测试结果验证了该方案设计天线的抗干扰能力。
An implementation scheme of GNSS real-time anti-interference antenna is proposed. The scheme calculates the optimal weight coefficients of the Power Inversion （PI） algorithm via Cholesky decomposition. Besides, the design of digital down and up frequency conversion is simplified, since the nulling algorithm is implemented in the low intermediate frequency. Only by using one FPGA can all baseband digital signals be processed. The test results in real field verify the anti-interference capability of this antenna.
出处
《数字通信》
2013年第2期47-50,共4页
Digital Communications and Networks
