Electromagnetic environment analog simulation system of radio fuse

Abstract

The invention discloses an electromagnetic environment analog simulation system of a radio fuse. A mathematical simulation calculation subsystem simulates and generates an electromagnetic environment echo model base according to a working environment, a test condition and actually measured data; an analog simulation control subsystem controls the working state of the radio fuse to be tested and collects the state parameter of the fuse and realizes controlling the simulation process of a semi-physical simulation device; the semi-physical simulation device converts the data of the electromagnetic environment echo model base into corresponding radio frequency echo signal so as to realize echo signal semi-physical closed feed simulation. The invention ensures the integrality and the uniformity of the system and has good expansibility and applicability; different electromagnetic environment analogs are realized through modifying software and models, the simulation flexibility and repeatability are greatly improved, and the invention has high environment applicability and good economic benefit.

Description

Technical field [0001] The invention relates to a radio fuze electromagnetic environment simulation system. Background technique [0002] The development trend of modern air defense missiles is generalized and multi-purpose operations, requiring weapon systems to accurately destroy targets under conditions of multiple combat targets, multiple combat airspaces, complex electromagnetic environments, and background environments. Accordingly, the fuze is required to have accurate short-range target detection, Interference and target recognition capabilities in ultra-low altitude environments to meet the requirements of accurate target detection under different combat targets, different combat airspaces, and anti-complex electromagnetic and background interference. At the same time, after the fuze recognizes the effective target during the rendezvous process, the fuze needs to accurately control the optimal detonation time to ensure that the warhead detonates in time and effectively d...

AI Technical Summary

Problems solved by technology

[0005] Among the currently commonly used hardware-in-the-loop simulation systems, there are many systems that use high-speed DAC chips for hardware-in-the-loop simulation, such as the journal "Radar Guidance Hardware-in-the-loop Simulation Error Analysis", but this system uses hardware-in-the-loop simulation based on radio frequency storage technology. The modulation of the signal is carried out by the computer, and the real-time performance is poor. For the cooperative target environment such as the fuze test, the system is relatively complicated

The journal "Design and Realization of Echo Simulator Based on Earth Echo Simulation" uses a dual-channel DAC to simulate echoes, but in this system, an EPROM memory is used as a data storage chip, which leads to limited storage capacity of the system and flexible The performance is also relatively poor, and continuous multi-echo simulation cannot be carried out.

In the journal "Implementation of a Radar Echo Simulator", DRFM technology is also used, which makes the system complex and the simulation similarity of the environment is poor

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