Angular localization (in elevation and azimuth) of two targets using passive monopulse radar

What is it about?

Commonly, the monopulse technique is used to rapidly localize one target lying within a narrow beam centered around the antenna boresight. Here, we applied the monopulse technique to estimate the elevation and azimuth angles of two point targets based on the reflections of third party signals.

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Why is it important?

The novelty in this work lies in: 1) The use of passive signals coming from third party transmitters 2) The simultaneous localization of two targets 3) The targets are no longer in the narrow antenna boresight, but can be in any azimuth or elevation angle (no angular approximation needed) 4) The proposed smart averaging method improves the performance of the monopulse technique especially when both targets share the same elevation or azimuth angle.