Stray interference calibration method for target irradiator test equipment

Abstract

The invention provides a stray interference calibration method for target irradiator test equipment. The stray interference calibration method for the target irradiator test equipment fully uses a software radio technology; a virtual instrument technology and a general purpose instrument are integrated into a calibration system; a design mode of function modularization is adopted, and each function module is debugged separately, so that the stability and reliability of system software are improved, and the flexibility of software upgrading is much higher than hardware. Under the existing hardware condition, system upgrading and function extension can be realized only by modifying the software, and measurement of multiple modulation modes is adapted, thus the stray interference calibration method for the target irradiator test equipment provided by the invention has the characteristics of being stable in operation, reliable in performance, portable in operation and so on, can guarantee the overall performance of XXXX-1 and XXXX-2 weapon system ground equipment, guarantee the combat ability and quick reaction capability of forces, solve the requirement of field calibration of phase noise and nonlinearity (stray) of special test equipment of the target irradiator, and meet the requirements of model development, production and maintenance.

Description

technical field [0001] The invention relates to a method for calibrating stray interference of target illuminator test equipment. Background technique [0002] In order to ensure the stable and reliable performance of the entire weapon system, the XXXX-1 weapon system is equipped with maintenance support equipment, and the maintenance spare parts vehicle is one of the important equipment support vehicles. Level, intermediate level inspection and repair. The target irradiator test equipment equipped in the car is an important device for detecting the direct wave tuning circuit of the weapon system and the irradiation radio frequency parameters, and is used to test the technical performance of the target irradiation signal such as frequency, power, modulation parameters, phase noise and spurious Assessment, especially the quality of phase noise and spurious performance will directly determine the accuracy of the missile-target intersection and the quality of the successful de...

AI Technical Summary

Problems solved by technology

[0003] Within the power range of the guidance radar, under the aerodynamic target with certain speed and maneuvering characteristics and specific RCS performance, the phase noise of the target irradiation signal of the missile weapon system affects the threshold of the computer on the missile to solve the normal guidance command; the missile weapon system The stray target irradiation signal within the range of 2kHz-400kHz deviation from the carrier frequency will affect the correct calculation of the guidance information of the computer on the missile, and directly affect the servo command of the accurate intersection of the missile and the target, while the stray deviation within the range of 4MHz-6MHz from the carrier frequency will directly Affect the normal work of the missile close-combat fuze, so that even in the effective combat area where the projectiles and targets meet accurately, the missile warhead cannot work normally

Therefore, the performance of the phase noise and spurs of the target illuminator test equipment will directly affect the evaluation quality of the target irradiation signal. If the nonlinear (spurious) interference performance is too poor to calibrate the The anti-jamming performance of the system decreases, which directly affects the target hit rate of the missile weapon system, so periodic system-level calibration is required for the phase noise and nonlinear (spurious) performance of the target illuminator test equipment

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