Modular and building block type digital array radar system

Abstract

The present invention provides a modular and building block type digital array radar system. The system comprises a plurality of building block type digital active transceiver sub-modules and a data fusion server. The building block type digital active transceiver sub-modules are respectively mounted on a preset antenna array-plane framework and are respectively connected with the data fusion server. Each building block type digital active transceiver sub-module is composed of an antenna radiation module in card-inserting type connection with a comprehensive backboard, a digital T/R module, a digital beam forming unit, an optical power divider and an array-plane monitoring network module, wherein the antenna radiation module, the digital T/R module, the digital beam forming unit and the optical power splitter are sequentially in communication connection. The optical power splitter is connected with the data fusion server. The array-plane monitoring network module is respectively connected with the digital T/R module and the data fusion server. The modular and building block type digital array radar system has the advantage of multi-angle viewing angle and can effectively resist the main-lobe interference. A distributed arrangement receiving station is passive and can effectively reduce the radar intercepted probability and the radar attacked probability.

Description

technical field [0001] The invention relates to the technical field of digital array radar, in particular to a modular and building block digital array radar system. Background technique [0002] Radar is faced with the challenge of stealth targets and complex electromagnetic environments, and the survivability of traditional monostatic radars is severely challenged. [0003] Stealth targets are mainly designed for active radars in the centimeter wave band, which greatly reduces the RCS of ±45° horizontally and ±30° vertically in the direction of the nose cone that is vulnerable to attack. Anti-stealth detection equipment such as passive positioning system has come out one after another. These devices have good anti-stealth performance under certain conditions, but their anti-stealth performance is poor for silent penetration, active jamming, etc., and there are certain deficiencies in accuracy, low-altitude detection, and volume. [0004] Radar needs to work in a complex ...

AI Technical Summary

Problems solved by technology

These devices have good anti-stealth performance under certain conditions, but their anti-stealth performance is poor for silent penetration, active jamming, etc., and there are certain deficiencies in accuracy, low-altitude detection, and volume.

[0004] Radar needs to work in a complex electromagnetic interference environment. Existing anti-jamming technologies such as sidelobe cancellation and sidelobe concealment are mostly aimed at sidelobe interferen

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