An improved amplitude ratio angle measuring device and method

Abstract

The invention relates to an improved amplitude comparison angle measurement device and a method thereof, wherein the device and the method belong to the technical field of radar wave detecting equipment and method. The improved amplitude comparison angle measurement device and the method thereof are characterized in that the improved amplitude comparison angle measurement device is composed of one-to-two power dividers, five-to-one synthesizers, etc.; each one-to-two power divider is connected with a unit antenna through an attenuator; the signal end of the one-to-two power divider is connected with a left moving five-to-one synthesizer and a right moving five-to-one synthesizer; the left moving five-to-one synthesizers and the right moving five-to-one synthesizers are divided into four groups in a manner than one left moving five-to-one synthesizer and one right moving five-to-one synthesizer are in one group; and the output ends of the left moving five-to-one synthesizers and the right moving five-to-one synthesizers are respectively synthesized through three two-to-one synthesizers and are connected with two receivers, thereby forming a left offset summation wave beam and a right offset summation wave beam for replacing an original difference wave beam, improving zero-point position amplitude, reducing influence of an interference signal to a position next to a zero point, and effectively improving orientation angle measurement precision. The improved amplitude comparison angle measurement device and the method settle a problem of low azimuth measurement precision next to a zero point caused by severe interference of difference wave beam amplitude in forming a summation wave beam and the difference wave beam through a sum and difference device.

Description

technical field [0001] The invention relates to an improved amplitude ratio angle measuring device and method, belonging to the technical field of radar wave detection equipment and methods. Background technique [0002] The traditional sum-difference angle measurement method of radar is to form a sum beam and a difference beam through a sum-difference device. The sum beam is used to detect the target distance and track the target, and the difference beam is used to detect the azimuth and elevation angle of the target. When the target is in the direction of the maximum value of the sum beam, the amplitude of the difference beam is zero. When the target moves, the amplitude of the difference beam becomes stronger, and the deviation angle of the target can be determined according to the amplitude value of the difference beam signal, so as to measure the azimuth of the detection target horn. However, because the amplitude value of the zero point of the difference beam is too s...

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Problems solved by technology

[0003] The purpose of the present invention is to: aim at the deficiencies of the above-mentioned prior art, provide a kind of convenient manufacture, simple operation method, effectively improve the measurement accuracy of the azimuth angle near the zero point of the difference beam, and ensure the improved amplitude ratio angle measurement device and method of the radar detection accuracy ; Solve the problem that the existing sum beam and difference beam are formed by the sum difference device. Because the zero point amplitude value of the difference beam is seriously interfered, the azimuth angle measurement accuracy near the zero point is low, which seriously affects the radar detection accuracy.

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