关键词: 多通道, 高速D/A, AD9739, 宽带线性调频信号, 相位差

Abstract:

Multiple antenna array is often applied in the detection and location system,in which the phase change rate is commonly used in single observer passive location of the observation parameters.This paper presents a multi-chip-based high-speed AD company 2.5 GSample·s^-1D/A converter AD9739 with DDS multi-channel signal simulator.Tests show that the simulator can achieve realistic simulation of phase change of the wideband linear frequency modulated signal waveform received by the multi-element antenna array.

Key words: multi channel;hign speed D/A;AD9739;wideband linear frequency modulated;phase difference