摘要
将离散傅里叶变换(DFT)引入到空域信号处理中,对等距线阵接收的信号进行了分析和处理,提出了一种提取信号来波方向的方法.由于离散傅里叶变换可以用其快速算法FFT进行计算,较之传统的空间谱估计而言,计算量有很大地减少.仿真结果显示,该方法可靠,计算简单.可以用于实时DOA估计.
Discrete fourier transform ( DFT) was introduced into the spatial domain signal processing to analyse and process the uniformly spaced linear array signals, and a method to extract the DOA of signal was presented. Since DFT can he calculated via its fast algorithm FFT, the compulation is less than the conventional spatial spectrum estimation algorithm. Simulation results show that this method is reliable and the complexity of computation is very low, so it can he applied to estimate DOA in real-time.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2003年第4期440-443,共4页
Journal of Harbin Engineering University
基金
黑龙江省自然科学基金资助项目(F01-01).
