Method for controlling radar beam elevation angle of shipbased radar by utilizing position-pitching-rolling tri-axial stabilization system

Abstract

The invention relates to a method for controlling a radar beam elevation angle of a shipbased radar by utilizing a position-pitching-rolling tri-axial stabilization system, which is used for accurately controlling the radar beam elevation angle at a specified position by controlling the pitching and the rolling of a mechanical stabilization platform, and can achieve an elevation angle control function based on the position-pitching-rolling tri-axial stabilization system instead of a position-pitching-rolling-pitch four-axial stabilization system used by a conventional method. The shipbased radar utilizing the position-pitching-rolling tri-axial stabilization system needs to control the radar beam elevation angle in use, but the tri-axial stabilization system has no elevation shaft. Therefore, if the control on the radar beam elevation angle is achieved, the commonly-used method is that an elevation shaft is arranged on the tri-axial mechanical stabilization platform, namely the position-pitching-rolling-pitch four-axial stabilization system, thereby greatly improving complex of the system, increasing the weight of the mechanical stabilization platform and reducing adaptability of the radar. By controlling the pitching and the rolling of the mechanical stabilization platform, the accuracy control on the radar beam elevation angle is achieved, accuracy control on the radar beam elevation angle at the specified position is ensured, and the condition that radar beam pointing is free of rolling is ensured. Therefore, the elevation angle control function is achieved by utilizing the position-pitching-rolling tri-axial stabilization system instead of the position-pitching-rolling-pitch four-axial stabilization system, thereby reducing complex of the mechanical system and the weight of the radar and increasing adaptability of the radar.

Description

technical field [0001] The invention relates to a method for controlling the pitch angle of a radar beam of a shipboard radar azimuth-pitch-roll three-axis stabilization system, which belongs to radar servo control technology. It is a control method to realize the pitch angle of the radar beam under the structural form of the shipboard radar (azimuth-pitch-roll) three-axis stabilization system. The precise control of the pitch angle of the radar beam realizes the pitch angle control function that can only be realized by the conventional four-axis stabilization system of azimuth-pitch-roll-pitch on the azimuth-pitch-roll three-axis stabilization system. Background technique [0002] The three-axis stabilization system (azimuth-pitch-roll) with a mechanically stabilized platform uses two sets of servo systems for pitch and roll to control a mechanically stabilized platform (the mechanically stabilized platform has two axes, and the roll axis is aligned with the bow and stern l...

AI Technical Summary

Problems solved by technology

[0003] At present, the shipboard radar with the fixed pitch angle beam of the above-mentioned three-axis stabilization system cannot control the pitch angle of the radar beam because the three-axis stabilization system itself has no pitch axis.

To realize the control of the pitch angle of the radar beam, the conventional method is to set the pitch axis on the three-axis mechanically stabilized platform, that is, to adopt the azimuth-pitch-roll-pitch four-axis stabilization system, which greatly increases the mechanical system Complexity, also increases the weight of the mechanically stabilized turntable, reducing the suitability of the radar

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