利用DSP技术的双正交微波测试系统

A Double-Orthogonal Microwave Measurement System Using DSP

一种不采用锁相环路的高稳定性微波幅相接收机 ,结合当今先进的DSP信号处理技术 ,可用于天线、RCS和空间场分布的测量 ,具有体积小、重量轻、成本低的特点。本文介绍了这种微波接收机的基本结构与原理 ,对该系统的数字化改进作了比较详细的介绍 ,同时提出进一步的改进方案 ,使系统的精度进一步提高。

A microwave amplitude and phase receiver without Phase-Locked Loop(PLL)is developed,which can achieve a very high stability. The advanced DSP technology blending in this system makes the receiver lighter, smaller and cheaper. This system can be used to measure the antenna, RCS and spatial field distributions. The functional block diagram and the measuring principal of this system are presented and the improvement of the receiver is introduced in this paper. Further work to improve the system is discussed too.