Radar moving platform electronic beam stabilization and compensation system

Abstract

The invention provides a radar moving platform electronic beam stabilization and compensation system. The system comprises attitude information acquisition equipment, an inter-rigid-body relative coordinate relationship calibration module, a first attitude information conversion module, a resolving module, a signal processing and data processing module, a wave control code calculation module and asecond attitude information conversion module. A pitching angle value and a rolling angle value are acquired in real time through the attitude information acquisition equipment, an actual direction of a radar beam under an antenna coordinate system is calculated through the first attitude information conversion module, beam direction compensation information is obtained, and electronic stabilityof a beam direction is achieved; target coordinates are converted into a geographic coordinate system to realize correction of a target direction; and a receiver gain is adjusted in real time to complete compensation according to a deviation between the compensation direction and a direction gain in a radar directional diagram. The scheme of the invention can effectively solve the electronic stability problem of radar beam pointing and gain under the moving platform, eliminate the influence of carrier motion on radar performance indexes, and realize the motion isolation of the moving platformand the radar.

Description

technical field [0001] The invention relates to the field of radar, in particular to an electronic beam stabilization and compensation system for a radar moving platform. Background technique [0002] The invention relates to that when a radar carrier platform (such as a ship, a floating platform or a vehicle, etc.) turns and pitches, the radar antenna swings with the carrier, causing the beam to rotate relative to the horizontal plane of the geographical coordinate system. The elevation beam is always perpendicular to the plane of the carrier coordinate system, so a stable geographic coordinate system and a swaying and rotating carrier coordinate system where the antenna is located are formed. When there is no steering and pitch and roll, the two coordinate systems coincide; when there is vertical and horizontal When wobbling occurs, the beam wobbles in the geographic coordinate system. [0003] When the carrier pitches and rolls, the beam will sway with the carrier. The ...

AI Technical Summary

Problems solved by technology

The pitch and roll mechanical stabilization device will increase the amount and weight of the equipment, and the pitch and roll servo control is also required. The increase in the amount of equipment not only reduces the reliability of the radar but also deteriorates the adaptability and increases the cost

Therefore, the mechanical phase stabilization system is complex in structure, bulky, high in cost, difficult to install and maintain, and difficult to adapt to scenarios that need to consider economy and maintainability, such as application scenarios such as pontoons and other ships

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