基于遺傳算法的一維散射中心提取研究
1-D Scattering Centers Extraction Technique Based on Genetic Algorithm
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摘要: 該文提出了一種基于遺傳算法的雷達(dá)目標(biāo)一維散射中心提取方法并給出了適用條件。它采用非衰減指數(shù)和模型與CLEAN方法，將每個(gè)散射中心的提取轉(zhuǎn)化為一個(gè)非線性優(yōu)化問(wèn)題，并利用遺傳算法進(jìn)行優(yōu)化求解。仿真結(jié)果表明，相對(duì)于傳統(tǒng)的FFT方法和Prony方法，該文提出的一維散射中心估計(jì)方法在準(zhǔn)確性、魯棒性和分辨力等方面具有優(yōu)勢(shì)。
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關(guān)鍵詞:
- 散射中心;指數(shù)模型;遺傳算法
Abstract: A novel 1-D scattering center extraction method based on genetic algorithm and its applicable conditions are provided in this paper. The undamped exponential model and CLEAN method are used in the extraction algorithm to transform 1-D scattering center extraction into non-linear optimization problem with genetic algorithm. Experimental results show that the proposed extraction method has advantages in accuracy, robustness and range resolution, comparing with the FFT and Prony methods. -
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