Tracking apparatus for warning radar major-minor petal and tracing method thereof

Abstract

The invention provides a main and secondary clack tracker and the tracking method for a warning radar. The tracker comprises antennas 1-5, a servo platform 6, PIN attenuators 7-11, high-frequency amplifiers 12-16, frequency mixers 17-21, mid-frequency amplifiers 22-26, a local oscillation assembly 27, a digital receiver 28, wave detectors 29-30, a summing circuit 34, and a signal processor 35. The antennas 1-5 are mounted on the servo platform 6, and are respectively connected with the inputs of the PIN attenuators 7-11; the outputs of the PIN attenuators 7-11 are connected with the inputs of the high-frequency amplifiers 12-16; the local oscillation assembly 27 is controlled by the processor, and generates microwave signals with fixed frequency difference from the frequency of the incident signals, and is connected with the frequency mixers 17-21 together with the output signals of the high-frequency amplifiers; the outputs of the frequency mixers 17-21 are connected with the inputs of the mid-frequency amplifiers 22-26, the outputs of which are connected with the digital receiver 28 and the wave detectors 29-30; the outputs of the wave detectors 29-30, passing the summing circuit 34, are connected with the signal processor 35 together with the output from the digital receiver 28. By controlling the front ends of microwaves through the arrival signals of the front ends of microwaves and the signal processor, the invention combines EKF (extended Karman filtering) arithmetic with missile controlling value, capture concurrently the main and secondary clack of a radar, so as to attack a target precisely.

Description

technical field [0001] The invention relates to a measurement and control technology, specifically a passive radar detection technology. Background technique [0002] The long-range warning radar is generally a ring-scan radar, and the conventional method for the seeker to track the warning radar is: when the radar and the anti-radiation seeker are far apart, during the alignment period between the radar antenna and the anti-radiation seeker antenna, the anti-radiation seeker It can intercept the signal, analyze it, and track the radar. When the radar beam sweeps the anti-radiation missile antenna, the anti-radiation missile loses the target; at short range, the main lobe power of the radar is large, and the anti-radiation seeker adopts PIN attenuation The device suppresses the main lobe and receives the side lobe signal. [0003] It can be seen that when the anti-radiation seeker uses the conventional method to track the long-range warning radar, there will be no signal fo...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that when the anti-radiation seeker uses the conventional method to track the long-range warning radar, there will be no signal for a period of time. If no measures are taken, the anti-radiation seeker will not be able to give target information, and the missile will not be able to adjust its alignment in time. Due to the angle between the targets, the anti-radiation seeker cannot be aligned with the direction of the target, causing the target to be lost, and in severe cases, the missile will miss the target

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