Martello S 743

The Martello S 743 is an air defense radar operating in the D-band. Its planar antenna features laser-cut, vertically stacked horizontal linear elements, each with an independent receiver. Precise phase and amplitude control of these elements, driven by distributed solid-state transmitter modules, enables ultra-low sidelobes and an adaptable elevation beam shape. The system illuminates all targets within its elevation cover on every transmission, combining signal returns into simultaneous, overlapping stacked vertical beams for high-accuracy elevation data derived via monopulse processing. A unique signal processor offers MTD (Moving Target Detection) or MTI (Moving Target Indication) modes, automatically controlled by a clutter map, with parallel coherent processing across all ranges and elevations without data rate reduction. Signal processing functions are performed by an array of identical, interchangeable modules, and an intelligent BITE (Built-In Test Equipment) system automatically replaces failed modules with redundant units. An integrated SSR/IFF (Secondary Surveillance Radar/Identification Friend or Foe) system, with Mode 4 capability, correlates primary and secondary radar plot data for transmission to operations centers. The same antenna is also used with the "Indra" interrogator in the Spanish "Lanza" radar system.

radartutorial.eu: https://www.radartutorial.eu/19.kartei/02.surv/karte009.en.html