Receiver of radar simulator

Abstract

The invention discloses a receiver of a radar simulator. The receiver comprises a first down-conversion system, a second down-conversion system, a detection system and a frequency storage system. A target radar signal serves as a first radio frequency input signal, the first down-conversion system provides a detection input signal for the detection system and provides a second radio frequency input signal for the second down-conversion system according to the first radio frequency input signal; the detection system provides a first digital signal for the frequency storage system according to the detection input signal; the second down-conversion system provides a second digital signal for the frequency storage system according to the second radio frequency input signal; and the frequency storage system is used for providing a second local oscillator input signal for the second down-conversion system according to the first digital signal and generating a radar analog signal according tothe first digital signal and the second digital signal. According to the receiver of the radar simulator, the cost and the design difficulty are reduced, and the research and development speed is increased.

Description

technical field [0001] The invention relates to the technical field of radar testing, in particular to a receiver of a radar simulator. Background technique [0002] The radar simulator is a tool used to test radar performance and reduce the cost of radar experiments. Common radar simulators transmit the signal of the target radar by copying it, and simulate a virtual target on the radar screen to achieve the effect of target radar deception. , this technology has a very wide range of applications in military and civilian radar testing, radar electronic countermeasures, radar operation training and other occasions. [0003] In the design process of the radar simulator, in order to achieve a complete simulation of the target radar signal, it is usually necessary to completely "copy" the signal emitted by the target radar after down-conversion. This method is relatively easy to achieve when the radar bandwidth is not high. , For example, the target radar is a 10GHz-10.2GHz ch...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a radar simulator receiver, which solves the problem that the existing radar receiver cannot reduce the frequency of the radio frequency part and the intermediate frequency sampling part, thereby increasing the cost of the entire sampling and processing link and design difficulty, reducing the speed of research and development

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