Signal Source Solutions for Coherent and Phase Stable Multi-Channel Systems
应用文章
Coherent multi-channel systems have unique properties that enable beam forming, direction finding and improved reception in a dispersive channel. As enabling technology matures and demands for these capabilities increase, the ability to efficiently test and exercise these systems is of growing importance.
When performing characterization, special signal simulation capabilities are required to accurately recreate the operational environment. Namely, signals must be created in a way that they will coherently combine to simulate their real-world behavior. This application note will discuss test signal requirements for the evaluation of multi channel RF systems, including example test configurations with varying degrees of coherence, example test requirements, and an examination of errors and uncertainty that limit coherence.