General signal generator for radar target simulation

Abstract

The invention, which relates to the technical field of the radar target simulation, discloses a general signal generator for radar target simulation. With the signal generator, a defect that the existing radar target signal generator is based on a special-purpose signal generator and only serve a radar system with a specific type in terms of frequency band coverage and function setting and thus the application range is limited can be solved. The signal generator comprises an embedded main control computer, a timing sequence control unit, an attenuation drive, a local oscillation module, a filtering, amplifying and limiting amplitude power divider, a plurality of digital radio frequency storage and playback modules, a plurality of Doppler frequency simulation modules, a radar cross section control module, a noise modulation module, a microwave down mixer, and IQ up mixing unit and the like. The output terminal of the microwave down mixer is connected with the filtering, amplifying and limiting amplitude power divider; the multiple digital radio frequency storage and playback modules are connected to the filtering, amplifying and limiting amplitude power divider; and the output terminal of each digital radio frequency storage and playback module is connected with one Doppler frequency simulation module.

Description

technical field [0001] The invention relates to the technical field of radar target simulation, in particular to a general signal generator for radar target simulation. Background technique [0002] Radar is an important category of military and civilian electronic equipment. Since its inception for more than 70 years, with its unique advantages in information acquisition, weapon system guidance, measurement and evaluation, etc., it has been used in various major local wars and national economies after World War II and after the war. Playing an important role, radar technology has become an important symbol to measure the level of a country's electronic technology to some extent. [0003] As the radar system becomes more and more complex, it becomes increasingly difficult to analyze and research radar equipment in the design, manufacture, test and application stages. How to simulate the environment of radar and judge its performance characteristics are urgent problems to be...

AI Technical Summary

Problems solved by technology

The radar target simulator consists of two standard cabinets, which are bulky and heavy, expensive, and the maximum simulated target distance is 262 kilometers

[0027] The vast majority of radar target signal generators in China are mainly dedicated signal generators. Both frequency band coverage and function settings are aimed at a specific type of radar system, which greatly limits the scope of application.

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