Antenna control system and method of phased array radar

Abstract

The invention discloses an antenna control system and method of a phased array radar, and belongs to the technical fields of radio orientation, radio navigation, radio wave range finding or velocity measurement, positioning or existence detection via reflection or re-radiation of radio waves, and similar devices with other waves. The system comprises an antenna array module, an array plane selector switch module, a transmitting-receiving amplifier and filter module, a phase shifter and power divider module, a GPS / BD positioning module, an attitude sensor module, a control and power supply module and a wave beam oriented automatic control module. The system and method can satisfy the requirements of minimization, low power consumption, high radiation efficiency and high isolation degree. Compared with a traditional phased array configuration system, the number of RF transmitting-receiving channels is reduced to 1 / 5, the power consumption is reduced to 1 / 5 correspondingly, a switch linephase shifter is used, the phase delay within the work bandwidth satisfies the time delay characteristic of a signal space, and different frequency points are directed accurately; all machinery related equipment is omitted; and the total power consumption is reduced greatly.

Description

technical field [0001] The invention belongs to the technical field of radio orientation; radio navigation; distance measurement or speed measurement by radio wave; positioning or presence detection by radio wave reflection or re-radiation; and similar devices using other waves, and in particular relates to a phased array radar antenna control systems and methods. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: Maritime satellite antennas in motion have been widely used in information interconnection systems such as navigation, surveying, and vehicles. Azimuth and pitch servo motors to adjust the direction of the front). Due to the relatively harsh working conditions of the carrier, the mechanical servo mechanism has technical risks of low reliability and high failure rate. There are two defects in the following aspects: 1. Due to the frequent attitude adjustment of the azimuth and pitch servo system, the po...

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Problems solved by technology

[0002] At present, the existing technologies commonly used in the industry are as follows: Maritime satellite antennas in motion have been widely used in information interconnection systems such as navigation, surveying, and vehicles. Azimuth and pitch servo motors to adjust the direction of the front), due to the relatively harsh working conditions of the carrier, the mechanical servo mechanism has technical risks of low reliability and high failure rate

There are two defects in the following aspects: 1. Due to the frequent attitude adjustment of the azimuth and pitch servo system, the pointing accuracy of the system will produce a cumulative error, resulting in a decrease in pointing accuracy; 2. Especially in the case of a ship carrier, the traditional mechanical servo In the dynamic communication system, the servo system is in a state of frequent adjustment, and the pitch direction is more prominent, and the high failure rate of the servo system has appeared in practical applications)

[0003] In summary, the problems in the prior art are: (1) The traditional mobile-in-motion maritime satellite antenna adopts mechanical servo plus attitude sensing, which has low reliability and high failure rate

(2) Using the traditional phased array architecture, there are structural complexity, weight discomfort and uncontrollable cost

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