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Noise wave simulation data generating method based on environmental information

A technology of environmental information and simulation data, applied to radio wave measurement systems, instruments, etc., can solve the problems of combination, less consideration of the inevitable connection between clutter and environmental information, etc.

Inactive Publication Date: 2014-02-19
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing radar signal simulators can provide a series of echo signals with clutter characteristics, they are not combined with a variety of complex environmental information factors, and the inevitable connection between clutter and environmental information is less considered, and only separate clutter signals are provided. Wave Generation Technology

Method used

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  • Noise wave simulation data generating method based on environmental information
  • Noise wave simulation data generating method based on environmental information
  • Noise wave simulation data generating method based on environmental information

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specific Embodiment approach

[0010] First, set radar simulation environment information according to specific verification objectives and simulation requirements. Environmental information builds on existing data collection, correlation and mapping. Meteorological information includes: weather conditions (sunny, cloudy, rainy), temperature, wind speed, wind direction, etc. Ocean information includes various sea state information, wave height, wave speed, flow direction, etc. Geographic information includes: coastline, altitude, city or mountain and other information. By collecting the above-mentioned various information. Classify, correlate, and map the collected sea clutter data, and establish the following table for dynamic generation of sea clutter. Similarly, create a similar table for ground clutter, and perform the same classification, correlation, and mapping operate.

[0011]

[0012] After collecting, summarizing and organizing the environmental parameters, the grid is divided according to ...

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Abstract

The invention relates to a noise wave simulation data generating method based on environmental information. The noise wave simulation data generating method based on environmental information is characterized in that environmental information around a radar and noise wave features are collected, related and mapped, wherein the environmental information comprises weather information, ocean information and geographic information. The environment information is divided into reseaus according to the longitude and the latitude and the sizes of the reseaus are set according to resolution cells of the radar. Environmental information parameters or noise wave feature parameters which influence a noise wave model are recorded in each reseau; according to the environmental information parameters or the noise wave feature parameters stored in each reseau, modeling is performed on sea noise waves and noise wave data are generated; according to the coordinates of the longitude and the latitude of the radar and the coordinates of the longitude and the latitude of all reseau centers, the noise wave data are converted into noise wave data under polar coordinates of the radar and the resampling technology is used for generating radar noise wave echo data which are expressed with the polar coordinates.

Description

technical field [0001] The invention belongs to radar signal simulation generation technology. More specifically, by collecting the environmental information in the observation area, dividing the latitude and longitude grids according to the radar resolution unit, and setting the environmental information parameters and clutter models of each grid, generating clutter data based on environmental information, and realizing radar clutter signal analysis. Realistic simulation technology. Background technique [0002] In the field of radar research, radar signal simulators are widely used to verify the working performance of actual products. For marine radar, the very important job of the radar signal simulator is to generate clutter under various environmental conditions, including ground clutter, meteorological clutter (cloud, rain clutter), sea clutter, radar interference clutter Wait. There are many factors that affect the clutter form, including land form, vegetation, urb...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 徐超
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND
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