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Chaff interference simulation method and chaff interference simulator

A technology of chaff interference and simulation method, applied in instruments, radio wave measurement systems, etc., can solve problems such as poor versatility and accuracy, and achieve the effects of low complexity, high precision, and low implementation complexity

Pending Publication Date: 2020-02-28
SHANGHAI ZHILIANG ELECTRONICS TECH CO LTD
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AI Technical Summary

Problems solved by technology

The empirical formula method is simple to implement, but its versatility and accuracy are poor, mainly because there are many factors that affect the motion diffusion characteristics of chaff interference and radar echo characteristics, and the measured data in one scenario is not applicable to other scenarios

Method used

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  • Chaff interference simulation method and chaff interference simulator
  • Chaff interference simulation method and chaff interference simulator
  • Chaff interference simulation method and chaff interference simulator

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Embodiment Construction

[0074] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0075] see figure 2 Shown is a schematic structural diagram of the chaff disturbance simulator of the present invention.

[0076] In one embodiment, the chaff interferes with the simulator, such as figure 2 shown, including:

[0077] The chaff electromagnetic characteristic off-line simulation unit is used to perform off-line simulation based on the chaff electromagnetic characteristic to generate chaff interference filter coefficients;

[0078] a chaff echo coefficient generator, used to generate echo coefficients with chaff interference characteristics by using the chaff interference filter coefficients and the nonlinear transformation filter;

[0079] a convolver, used to generate the chaff interference analog signal by using the echo coefficient and the real-time acquired radar signal;

[0080] The signal transceiving device is used...

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Abstract

The invention relates to a chaff interference simulation method and a chaff interference simulator, and belongs to the technical field of radar. The method comprises the following steps: firstly, carrying out offline simulation based on chaff electromagnetic characteristics to generate a chaff interference filter coefficient; then, generating echo coefficients with chaff interference characteristics on line; and further generating a chaff interference analog signal. According to the invention, simulation of various chaff interferences can be realized with relatively low complexity and high precision, including chaff missile characteristics, various wind speeds, throwing speeds, throwing directions, one-time throwing, continuous throwing, various frequency ranges and various platform movement speeds of ship-borne, airborne and missile-borne platforms, thus adapting to various radar signals; the high-precision low-complexity and universality which are not possessed by a traditional chaffinterference simulator can be realized by the invention, and the chaff interference simulation method has an extremely high application prospect.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to the technical field of chaff interference simulation, in particular to a chaff interference simulation method and a chaff interference simulator. Background technique [0002] Chaff jamming refers to throwing chaff in the air to reflect radar signals, as a false target to interfere with the enemy's early warning and detection radar, or as a bait to lure the enemy's tracking radar, or to form a Length, width, and thickness of jamming corridors used to shield friendly targets. As the earliest and most widely used passive jamming measure, chaff jamming has become a common jamming capability for combat objects such as aircraft, missiles, and ships. [0003] The chaff interference characteristics mainly depend on the movement diffusion characteristics of the chaff and the echo characteristics of the radar reflection. Its motion characteristics are related to the chaff throwing speed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/38G01S7/41
CPCG01S7/38G01S7/418
Inventor 梁艳杨红卫王骁
Owner SHANGHAI ZHILIANG ELECTRONICS TECH CO LTD
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