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GPU-based RF semi-physical clutter simulation method

A semi-physical simulation and clutter technology, applied in radio wave measurement systems, special data processing applications, instruments, etc., can solve the problem that the electromagnetic environment is no longer realistic, and achieve the effect of ensuring fidelity and improving simulation speed

Inactive Publication Date: 2017-10-03
BEIJING SIMULATION CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that the clutter signal provided to the seeker is not the clutter signal faced by the seeker at the current moment, but the clutter signal 100ms ago, which will cause the electromagnetic environment provided to the seeker to be no longer realistic

Method used

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  • GPU-based RF semi-physical clutter simulation method

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Embodiment Construction

[0040] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0041] In the description and claims of the present invention and the above drawings, the terms "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that a...

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Abstract

The invention discloses a GPU-based RF semi-physical clutter simulation method, which comprises the steps of: constructing a clutter real-time semi-physical simulation platform; subjecting clutter to clutter element division based on a Doppler ring; performing parallel calculation on the divided clutter elements and generating a baseband signal by utilizing a GPU technology; calculating missile and target flight parameters; and conducting multi-system data interchange and transmission, and completing the transmission of a clutter RF signal. The GPU-based RF semi-physical clutter simulation method realizes model parallel calculation on ground division of iso-Doppler rings and equidistance rings in a clutter model through establishing the clutter real-time semi-physical simulation platform and utilizing thread blocks and thread programming in the CUDA, realizes parallel acceleration of the clutter model by utilizing the GPU technology, realizes the data interchange and transmission between the GPU and an RTX real-time operating system, accelerates the simulation speed, and ensures the realistic performance of a homing head electromagnetic environment.

Description

technical field [0001] The invention relates to clutter radio frequency hardware-in-the-loop simulation. More specifically, it relates to a GPU-based radio frequency hardware-in-the-loop clutter simulation method. Background technique [0002] Radar clutter is the backscattering of radar beams formed on the surface of objects, such as the surface of the ground and the surface of the ocean. These include ground clutter, sea clutter, and weather clutter. Among them, in addition to the point clutter produced by man-made buildings, ground clutter is usually a kind of distributed scattering phenomenon; sea clutter refers to the echo of the sea surface, which shows stronger dynamic characteristics; meteorological clutter Mainly the backscatter of the rain layer. [0003] The seeker will be interfered by ground clutter in a complex battlefield environment. To test the low altitude look-down performance of the seeker, it is necessary to use hardware-in-the-loop simulation to test...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G06F17/50
CPCG01S7/4052G06F30/20Y02T90/00
Inventor 马静揭力石彬
Owner BEIJING SIMULATION CENT
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