Radar moving target simulation system

Abstract

The invention relates to a radar moving target simulation system. The system comprises a radar signal receiving unit, a signal processing control unit, a radar target simulation unit and a radar signal transmitting unit. The radar signal receiving unit is used for receiving a low-power transmitting signal of a tested radar, carrying out down-conversion and power adjustment, dividing the signal into two paths and respectively outputting the two paths to the signal processing control unit and the radar target simulation unit. The signal processing control unit is connected with the radar targetsimulation unit. The radar target simulation unit receives the intermediate frequency signal output by the radar signal receiving unit, generates a radar baseband target echo baseband signal accordingto the detection threshold signal and the target echo parameter, and outputs the signals to the radar signal transmitting unit and the signals are radiated to tested equipment through the antenna. The target trajectory model is introduced, so that the same-station simulation can be carried out on a rapid target, a low-speed target, a large target or a small target, and the applicability and accuracy of the system are improved.

Description

technical field [0001] The invention relates to the field of radar, in particular to a radar moving target simulation system. Background technique [0002] The radar moving target refers to the moving target in the airspace detected by the radar. For the airfield close to the airport or the combat airspace, there are different focuses on the detection of the moving target. The main object of interference during lift-off and landing is moving targets such as drones and birds. For combat airspace, moving targets mainly refer to fast-moving targets such as missiles. During the detection process, the radar should at least meet the two technical indicators of rapid response and high accuracy. This makes the radar design process need to carry out moving target testing. . The radar moving target simulation system is used to simulate the echo signal of the moving target, and its simulation performance mainly includes dynamic range, simulation distance and simulation speed. Howeve...

AI Technical Summary

Problems solved by technology

However, in different application scenarios, the performance of moving targets is also different. For example, the speed of missiles is significantly higher than that of drones and birds. Therefore, traditional radar moving target simulation systems are often simulated for a certain type of moving targets, and cannot be simulated. Switching between multiple types of targets

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