Triangular array-based two-dimensional electronic stability platform real-time calculation method

Abstract

The invention relates to a triangular array-based two-dimensional electronic stability platform real-time calculation method. According to the method, virtual array element simplified calculation is introduced based on an area array triangular grid layout array, so that basic wave control codes can be obtained; ship attitude information and servo information sent by a servo module are received inreal time through a customized optical fiber; a pipeline processing mode is adopted to perform real-time coordinate system correction on a heading, pitch, rolling, servo orientation and triangular inclination angle five-stage pipeline; calculation in the aspects of sine and cosine calculation, wave control code coefficient storage and matrix multiplication is realized through the IP CORE of the Xilinx ISE development software; the significance bit of a wave control code calculation result is automatically discriminated, and therefore, high-precision bit truncation can be realized; after the periodic synchronization signals of a transmission sub-system are received through the optical fiber, a beam scheduling table corresponding to a resource scheduling module is read, and beam control codes of pulse repetition periods in the beam scheduling table are calculated according to beam pointing, frequency points, servo information, and platform correction information.

Description

technical field [0001] The invention relates to the field of scheduling and beam control. Background technique [0002] The phased array radar has the characteristics of flexible and fast beam scanning, and the scanning of the antenna beam is realized through the beam control system. The beam control system is unique to the phased array radar, it replaces the servo drive system in the mechanical scanning radar, and undertakes the beam electronic stabilization task of the shipboard platform in the shipboard radar system. Generally, the shipborne phased array radar requires the electronic stabilization platform to be able to: (1) correctly generate the control signals of each phase shifter on the antenna array, so that the antenna beam can accurately point to the predetermined space direction; (2) be able to automatically compensate the ship During the driving process, factors such as heading, pitch and roll of the hull, servo azimuth, and front tilt can adaptively correct th...

AI Technical Summary

Problems solved by technology

However, there are problems in achieving electronic beam stabilization: the array elements of the radar array antenna are arranged flexibly, which makes it more difficult to calculate the beam control code; the measurement accuracy is not high due to the swaying of the ship, which affects the radar detection airspace

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