采样正弦信号的时延估计

Time-delay estimation for sub-sampling sinusoidal signals

提出了一种正弦信号的时延估计算法,它涉及采样和多重相关。该方法可以大大降低时延估计的复杂程度,提高估计的范围和估计的灵活性。并且它可以减小噪声干扰,适用于高频信号,有利于高频数字接收机的实现。仿真显示该算法的性能和优势非常明显。

To the problem of time-delay estimation for sub-sampling sinusoidal signals,this paper proposes a novel method com- posed of multi-period sampling and multi-layer correlation.This method can reduce the complexity of estimation and improve the range of time-delay estimation and its stability.It also has an excellent performance to reduce the effect of noise and interfer- ence.The important contribution of this new method is that it adapts to high frequency signal processing such as in radar,elec- tronic warfare,etc.It will accelerate the digital receiver realization of HF system.Simulations presented in this paper show that the performance and advantage of the new method is obvious.