Method for optimizing carrier frequency of frequency-agile radar

A technology of frequency agility and optimization method, which is used in the design of radar real-time signal processing system and electronic reconnaissance, countermeasures, radar signal processing, and missile fields, which can solve the problems affecting Doppler information extraction and nonlinear change of target echo phase. , to achieve the effect of strong survivability, optimized design, and increased reliability

Active Publication Date: 2016-07-20
XIDIAN UNIV
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AI Technical Summary

Problems solved by technology

[0004] Due to the agility of the radar carrier frequency within a certain range, the target echo phase changes nonlinearly, which affects the high-resolution range image synthesis and Doppler information extraction of the target.

Method used

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  • Method for optimizing carrier frequency of frequency-agile radar
  • Method for optimizing carrier frequency of frequency-agile radar
  • Method for optimizing carrier frequency of frequency-agile radar

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] An embodiment of the present invention provides a method for optimizing the carrier frequency of a frequency-agile radar, such as figure 1 As shown, the method includes the following steps:

[0023] Step 1, establishing the echo signal model of the frequency agile radar.

[0024] Step 1 specifically includes:

[0025] (1a) Acquiring the coarse distance image of the target;

[0026] A carrier frequency sequence with a length of Q is randomly generated...

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Abstract

The invention belongs to the field of radar signal processing, and discloses a method for optimizing carrier frequency of a frequency-agile radar. The method comprises the steps of establishing an echo signal model of the frequency-agile radar; converting the echo signal model of the frequency-agile radar to a corresponding compression perception model of the frequency-agile radar, and obtaining the compression perception model of the echo signal of the frequency-agile radar; constructing an objective function according to the compression perception model of the echo signal of the frequency-agile radar, wherein the objective function comprises the carrier frequency sequence of the frequency-agile radar; and solving the objective function by means of a simulated annealing algorithm, and obtaining the carrier frequency sequence of the frequency-agile radar after optimization.

Description

technical field [0001] The invention relates to the field of radar signal processing, in particular to a frequency-agile radar carrier frequency optimization method, which can be applied to the design of radar real-time signal processing systems and the fields of electronic reconnaissance, countermeasures, and missiles. Background technique [0002] The frequency of the pulse carrier frequency transmitted by the frequency agile radar changes rapidly within a certain range, and each carrier frequency can change according to a certain rule, or it can jump randomly. [0003] Frequency agile radar has a series of advantages: 1) It can improve the anti-jamming performance, 2) Increase the detection range of the radar, 3) Effectively suppress the interference of sea clutter and other distributed clutter, 4) Improve the tracking accuracy, etc. In the increasingly complex electromagnetic environment of the modern battlefield, frequency agility radar has broad application prospects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 全英汇吴耀君冉磊邢孟道李亚超
Owner XIDIAN UNIV
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