多通道实时数字鉴相技术的FPGA实现

数字式干涉仪测向体制中的相位差信息在频域上提取，与传统的在时域提取相比能大大提高低信噪比条件下鉴相精度及对信号的适应能力。利用相位差信息的频域数字提取方法，实现了单片FPGA完成多通道相位信息的提取。与传统的计算机实现和DSP实现相比，不但提高了速度，而且设备量小，具有明显的优势。

FPGA Realization of Muiti-channel Real-time Digital Phase Discrimination Technology

Compared with traditional method of extracting the phase difference information in time domain,extracting the phase difference information in frequency domain in direction finding system of digital interferometer can raise greatly the precision of phase discrimination and adaptive capability to signals.This paper uses the digital method of extracting the phase difference information in frequency domain,realizes to extract the multi-channel phase information by single-piece file programmable gate array.Compa...