A radar moving platform electronic beam stabilization and compensation system

Abstract

The invention provides an electronic beam stabilization and compensation system for a radar moving platform. The control code calculation module and the second attitude information conversion module obtain the vertical and roll angle values ​​in real time through the attitude information acquisition device, and use the first attitude information conversion module to calculate the actual pointing of the radar beam in the antenna coordinate system to obtain the beam pointing The compensation information realizes the electronic stabilization of the beam pointing; the target coordinates are converted into the geographic coordinate system to realize the correction of the target pointing; according to the deviation between the compensation pointing and the pointing gain in the radar pattern, the receiver gain is adjusted in real time to complete the compensation. The solution of the invention can effectively solve the electronic stabilization problem of radar beam pointing and gain under the moving platform, eliminate the influence of the carrier motion on the radar performance index, and realize the motion isolation of the moving platform and 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 rolls, the radar antenna swings with the carrier, causing the beam to rotate relative to the horizontal plane of the geographic 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 no steering and pitching occur, the two coordinate systems coincide; When panning occurs, the beam is panning in the geographic coordinate system. [0003] When the carrier rolls, the beam sways with the carrier. This leads to changes in beam orientation at azimuth and elevation, w...

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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