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建立了多信道相控发射机的系统模型,为了满足该系统模型在空间波束合成过程中射频信号同频同源、相位可控的要求,提出了一种高精度的多信道射频信号的相位检测技术。该技术基于数字信号处理,可以精确有效地检测不同信道之间的相位差,为实现射频信号的信号同步提供了可能。经过实际发射系统的实验证明,该技术能够并行检测多信道射频信号的相位,成功实现了多信道射频信号的同步。
A system model of multi-channel phased transmitter is established. In order to meet the requirement of the same frequency and phase of the RF signal during space beamforming in the system model, a high-precision multi-channel RF signal phase detection technology. The technology is based on digital signal processing, which can accurately and effectively detect the phase difference between different channels, which makes it possible to realize the signal synchronization of radio frequency signals. The experiment of actual transmitting system proves that this technology can detect the phase of multi-channel RF signals in parallel and successfully realize the synchronization of multi-channel RF signals.