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

摘要:

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。

Abstract:

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.