基于延时滤波算法的阵列信号合成技术

阵列信号合成的关键是对一个参考信号如何实现高分辨率的延时.介绍了阵列信号合成的基本原理与方法,根据阵列信号的特性,深入研究了一种基于延时滤波算法的阵列信号合成技术.该方法的优点是在较低的D/A采样频率的条件下,达到了高分辨率的延时,实现了阵列信号合成.仿真结果证明,该算法结构简单,计算量小,延时精度高,工程应用前景好.

Array Signal Synthesizer Technology Based on Delay Filter Arithmetic

Accurately delaying the reference signal with high resolution is the key point in array signal synthesizer. Firstly, the basis principle and method of array signal synthesizer are introduced.According to the characteristic of array signal, the synthesizing technology based on delay filter arithmetic is discussed.The advantage of the method is that we can obtain the accurate delay with high resolution even though the sample frequency of D/A is low. It shows by simulation that the method is simple, low-calculation, high-accurate and very suitable to use in array signal synthesizer.