基于STFT的卫星导航接收机抗干扰算法研究  

Research of anti-jamming algorithm for satellite navigation receiver based on STFT

作　　者：申蕾蕾[1] 张会生[1] 李立欣[1] 

机构地区：[1]西北工业大学,陕西西安710129

出　　处：《电子设计工程》2012年第6期93-95,共3页Electronic Design Engineering

摘　　要：卫星导航接收机的抗干扰问题日益突出,对于有效的抗干扰方法的研究显得尤为重要。本文对STFT(短时傅立叶变换)算法进行了修正,提出一种时间窗的改进方法。该算法的实质就是时间窗通过位移和压缩变换得到新的窗函数族,克服了原窗函数缺陷。改进的STFT算法能够有效地提高卫星导航接收机的抗干扰能力,与传统的抗干扰方法相比,该方法更具有工程实际意义。The problem of anti-jamming for satellite navigation receiver becomes increasingly prominent, it is particularly important for effective anti-jamming method. In this paper, a new algorithm is proposed for the time window based on STFT algorithm. The essence of this algorithm is the new window function obtained from displacement and compression transform of the time window and overcomes the defects of original window function. The new algorithm could improve the ability of antijamming for satellite navigation system effectively .Comparing to the traditional anti-jamming method, the method in this article is more practical.

关 键 词：卫星导航接收机 抗干扰 STFT 时间窗 

分 类 号：TN911.7[电子电信—通信与信息系统]