A New Signal Capture Method Based on Real-time Multi-domain Trigger in Communication Analyzer

The typical signal characteristic capture method in multi-domain is discussed in a tutorial view. Since the typical signal characteristic capture method can't capture the whole signal which characteristics vary with time, a novel high efficiency architecture for signal characteristic capture based on real-time multi-domain trigger is proposed. Combined with the flexible cyclic trigger delay data storage mechanism, this signal characteristic capture method is implemented by FPGA in the communication signal analyzer. It's proved that the signal characteristic capture based on real-time multi-domain trigger can fast analyze the signal features in multi-domain, accurately identify the signal characteristic variance process, and trustily store the signal data for post analysis. So, it's quite suitable for burst modulated communication signal analysis.