摘要
到达频率(FOA)估计问题是信号处理中研究的一个基本问题,广泛应用于通信、雷达、声纳以及其他信号处理领域。以广泛使用的数字调制信号为典型对象,开展FOA估计问题研究,针对单频复正弦信号估计问题,通过分析和仿真比较选择了高精度Kay频率估计方法,基于Kay算法,设计了适合于数字调制信号瞬时频率估计的分段Kay频率估计方法。通过仿真说明了基于Kay算法的分段频率估计方法的有效性和精确估计能力。
FOA （Frequency of Arrival ） estimation is a basis problem in signal processing domain, which is widely used in communication, radar and sonar domain. The paper studies on the FOA estimation. Aiming to the frequency estimation of single complex sinusoid, this paper selects high-precision Kay frequency estimation method through analysis and simulation comparison. Based on Kay algorithm, it designs the segmented Kay frequency estimation method suitable for instantaneous frequency estimation of digital modulated signal. The simulation result shows that the method proposed in the paper has high efficiency and precise estimation capability.
出处
《无线电工程》
2011年第8期18-20,37,共4页
Radio Engineering
