A DIGITAL INSTANTANEOUS FREQUENCY MEASUREMENT RECEIVER

摘要

Most radar warning (RW), electronic countermeasures (EGM) and electronic intelligence (ELINT) systems employ instantaneous frequency measurement (IFM) to identify threats, map the electronic battlefield and eventually implement deceptive countermeasures. In its development of systems in this sector Elisra has made advances with the introduction of its Digital Instantaneous Frequency Measurement (DIFM) receiver, which is shown in Figure 1 as a block diagram. This receiver offers the user large broadband instantaneous frequency coverage of 2 to 18 GHz, high dynamic range, high frequency measurement accuracy and fast throughput time—less than 400 ns.