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Radar and communication integrated waveform design method based on multi-objective ant lion optimization

A waveform design and multi-target technology, applied in the direction of calculation, calculation model, phase modulation carrier system, etc., can solve the problems of lack of guidance and difficulty in accurately finding radar integrated waveform parameters

Active Publication Date: 2018-10-02
HARBIN ENG UNIV
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Problems solved by technology

In the above method, due to the lack of guidance of particles (or individuals) in the optimization process, it is easy to fall into local optimum, and it is difficult to accurately find the integrated waveform parameters that achieve the maximum radar and communication performance at the same time

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  • Radar and communication integrated waveform design method based on multi-objective ant lion optimization

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Embodiment Construction

[0070] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0071] The present invention provides a radar communication integrated waveform design method based on multi-objective antlion optimization, the flow diagram is as follows figure 1 shown, including the following steps:

[0072] Step 1: Establish the fitness function of radar communication integrated waveform design.

[0073] The radar communication integrated signal adopts OFDM technology. According to the OFDM technology, the length of one OFDM symbol in the signal is first determined as T s =T g + T, T g is the length of the cyclic prefix, and T is the basic symbol duration. The subcarrier spacing can be obtained The number of subcarriers is N c , then the bandwidth of the integrated signal is B s =N c Δf. Communication information is included in OFDM symbols, and radar signals need to exist in the form of pulses, so there are two co...

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Abstract

The invention relates to a radar and communication integrated waveform design method based on multi-objective ant lion optimization, which comprises the steps of establishing a fitness function of theradar and communication integrated waveform design; initializing an ant population and an ant lion population, and determining the number of multi-objective ant lion optimization iterations; initializing a fitness value of each ant, and initializing the elite ant position; updating the ant position; calculating a fitness value of each ant in the population; updating a storage space, and dealing with a condition of exceeding the capacity of the storage space; updating the ant lion position and the elite ant lion position; judging whether the number of multi-objective ant lion optimization iterations is reached or not, if so, stopping the search, and randomly selecting a group of Pareto optimal solutions to serve as integrated waveform parameters; and if not, repeating the execution. The radar and communication integrated waveform design method takes the blind area range and information transmission rate in the integrated waveform application into consideration, thereby being more capable of meeting practical engineering requirements. The ant lions and elite ant lions guide together in the ant evolution process, thereby effectively avoiding falling into local optimum in the optimization process, and improving the convergence accuracy.

Description

technical field [0001] The invention relates to a radar communication integrated waveform design method, in particular to a radar communication integrated waveform design method based on multi-object antlion optimization, which belongs to the technical field of radar and wireless communication. Background technique [0002] In modern combat systems, various radar communication electronic equipment are more and more widely used, which greatly improves the combat capability of the platform. However, due to the complexity of electronic equipment, the system is bulky, energy consumption increases, and electromagnetic compatibility deteriorates. And other issues. In order to solve these problems, an integrated radar and communication system (IRCS) can be constructed to organically combine radar and communication equipment, thereby reducing the use of various electronic equipment. Combining radar and communication systems can give full play to their respective advantages, make up...

Claims

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Application Information

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IPC IPC(8): G01S7/28G06N3/00H04L27/20
CPCH04L27/20G06N3/006G01S7/28
Inventor 赵忠凯阮嘉恒禹永植郜丽鹏蒋伊琳
Owner HARBIN ENG UNIV
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