Unified simulation realization method of multiple-platform multiple-mode SAR (Specific Absorption Rate) echo

An implementation method, a multi-mode technology, applied in the field of signal processing, which can solve problems such as unfavorable program understanding, unfavorable code debugging, maintenance, porting and reuse.

Active Publication Date: 2012-07-11
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of SAR echo simulation programming, everyone has different programming habits, and has different programming methods for different simulation processes, which makes the program not conducive to understanding, and is also not conducive to code debugging, maintenance, transplantation and reuse.

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  • Unified simulation realization method of multiple-platform multiple-mode SAR (Specific Absorption Rate) echo
  • Unified simulation realization method of multiple-platform multiple-mode SAR (Specific Absorption Rate) echo
  • Unified simulation realization method of multiple-platform multiple-mode SAR (Specific Absorption Rate) echo

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] A unified simulation implementation method of multi-platform and multi-mode SAR echo, which needs to compare and distinguish the echo simulation characteristics of SAR under different platforms and working modes, and divide the simulation process into different functional sub-blocks according to the function, through a unified input Output interface to realize SAR echo simulation.

[0044] In order to facilitate the explanation of the theoretical basis required by the present invention, the signal model and flow chart of SAR point echo simulation are given below, and the differences brought by different platforms and modes to SAR simulation are compared, and the implementation is given on this basis The implementation steps of the multi-platform multi-mode SAR echo simulation platform.

[0045] (1) Unified signal model for SAR point e...

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Abstract

The invention provides a unified simulation realization method of a multiple-platform multiple-mode SAR (Specific Absorption Rate) echo. The invention provides a modularized programming unified simulation realization method for SAR echo simulation under different carrying platforms and irradiation modes. By analyzing and extracting the characteristics of the SAR echo simulation under the different platforms and modes, the method divides a SAR echo simulation flow into a function program section according to functions and carries out modularized programming for the function program section to form function modules with different actions. Finally, based on systemic thought, the input and output interfaces of the function modules are unified through an application program, and a unified multiple-platform multiple-mode SAR echo simulation system is built. According to the method, three modes of echo simulation on four typical platforms of SAR are integrated, the defects of independent simulation for the SAR under the different platforms and modes in the past are overcome, and meanwhile the reliability and portability of the simulation program are improved.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a method for realizing a unified simulation of multi-platform multi-mode SAR echo, which can be applied to a multi-platform multi-mode Synthetic Aperture Radar (SAR) original echo simulation platform . Background technique [0002] Synthetic Aperture Radar (SAR) is an active high-resolution space microwave remote sensing imaging radar, which has the characteristics of all-day, all-weather, and high resolution. The imaging range is large, and these features have unique advantages over traditional optical sensors. Using it, high-resolution radar images similar to optical photography can be obtained under extremely poor weather conditions, that is, the synthetic aperture principle is used to improve the azimuth resolution of the radar and the pulse compression technology is used to obtain the range resolution. In SAR system scheme design, imaging processing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/90G01S7/40
Inventor 徐华平朱洪
Owner BEIHANG UNIV
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