基于3-DDS和分数时延的卫星导航信号模拟方法

Satellite navigation signal simulation based on 3-DDS and fractional delay

提出一种基于3-DDS和分数时延的卫星导航信号模拟方法,结合DDS和分数时延滤波器的优点,用于实现高精度、高动态的时延控制,与传统时延控制方法相比,具有时延稳定性好、通道一致性易于控制、资源耗费少的特点。

The method of simulating satellite navigation signal based on 3-DDS and fractional delay filter is proposed in this paper.The method,which combines the advantages of DDS and fractional delay filter,is designed to generate high-accurate and high-dynamic delay signals.Comparing to the traditional delay controlling techniques,this method can realize more stable delay control,has better channel consistency and requires fewer resources.