基于自适应滤波的宽带阵列信号处理技术

Wideband Array Signal Processing Technology Based on Adaptive Filtering

自适应滤波是近30年以来发展起来的一种滤波方法。它是在维纳滤波、Kalman滤波等线性滤波基础上发展起来的一种最佳滤波方法。由于它具有更强的适应性和更优的滤波性能,因此在实际工程中,尤其在信息处理技术中得到了广泛的应用。这里将自适应滤波技术应用于电子对抗领域,解决电子战多通道宽带接收机之间的幅度、相位不一致性问题,并实现了基于自适应滤波的宽带波束形成方法。

Adaptive filtering is a filtering method developed in recent 30 years. It is an optimal filtering method developed from the linear filters such as Wiener filtering and Kalman filtering etc. The method has stronger adaptability and better filtering performance, so it is widely utilized in engineering and especially in information processing technology. Here the adaptive filtering technique is applied in electronic countermeasure area, solving amplitude variation and phase shifting mismatching among the broadband receiver channels in EW. And the broadband beamforming based on self-adaptive filter is also achieved in this paper.