Tracking radars for complex targets

The direction in which various tracking radar systems will point when tracking a static complex target is derived. From this analysis, it is concluded that the conical-scan system, the phase-monopulse system and the true amplitude-monopulse system are equally accurate. The separation of the antennas for the actual amplitude-monopulse system should be minimised, and the phase amplitude-monopulse system introduces a crosstalk term and probably should not be used for tracking complex targets. It is shown that a positive correlation exists between the tracking error and the relative magnitude of the reflected signals. Various methods based on this correlation for improving tracking accuracy are suggested.