Design of Ultra-wideband and Compact Signal Acquisition Test System

This paper discusses the development of a ultra-wideband and compact signal acquisition test system for use in desktop test of interferometer direction finding (DF) applications covering 0.35 to 2 GHz. Comparing with current counterpart, the test system owes the advantage of boarder bandwidth, higher precession of DF, flexible software and more compact size, who solves the problems that the miniaturization of test system and DF function cannot be well proved under desktop environment. The test system consists of signal source, channel emulator, signal acquisition platform and relating display control software. Performance for the proposed test system proves the capability of the test system. The error of setting angle and measured angle are less than 0.7°.