三維成像聲吶平面基陣稀疏化目標(biāo)函數(shù)的設(shè)計(jì)
發(fā)布時(shí)間:2018-10-11 09:41
【摘要】:為使具有稀疏陣的三維成像聲吶在成像信噪比、角分辨率及穩(wěn)定性方面均具有良好的性能,提出包含主副瓣比、旁瓣高度和、主瓣寬度、通道間幅相誤差4個(gè)因素的評(píng)價(jià)函數(shù)。改進(jìn)優(yōu)化過(guò)程,在保證陣增益、降低陣元失效影響的同時(shí),使優(yōu)化結(jié)果對(duì)幅相誤差不敏感。通過(guò)對(duì)不同優(yōu)化過(guò)程及實(shí)驗(yàn)結(jié)果進(jìn)行分析,驗(yàn)證提出的目標(biāo)函數(shù)可以使三維成像聲吶具有更好的綜合性能。
[Abstract]:In order to make 3D imaging sonar with sparse array have good performance in imaging signal-to-noise ratio (SNR), angular resolution and stability, an evaluation function is proposed, which includes four factors: principal sidelobe ratio, sidelobe height and sidelobe height, main lobe width, amplitude and phase error between channels. The optimization process is improved to ensure the gain of the array and reduce the effect of the failure of the array elements at the same time, the optimization results are insensitive to the amplitude and phase error. Through the analysis of different optimization processes and experimental results, it is verified that the proposed objective function can make 3D imaging sonar have better comprehensive performance.
【作者單位】: 中國(guó)科學(xué)院聲學(xué)研究所;
【基金】:國(guó)家自然科學(xué)基金(11304343)資助
【分類號(hào)】:TB56
[Abstract]:In order to make 3D imaging sonar with sparse array have good performance in imaging signal-to-noise ratio (SNR), angular resolution and stability, an evaluation function is proposed, which includes four factors: principal sidelobe ratio, sidelobe height and sidelobe height, main lobe width, amplitude and phase error between channels. The optimization process is improved to ensure the gain of the array and reduce the effect of the failure of the array elements at the same time, the optimization results are insensitive to the amplitude and phase error. Through the analysis of different optimization processes and experimental results, it is verified that the proposed objective function can make 3D imaging sonar have better comprehensive performance.
【作者單位】: 中國(guó)科學(xué)院聲學(xué)研究所;
【基金】:國(guó)家自然科學(xué)基金(11304343)資助
【分類號(hào)】:TB56
【相似文獻(xiàn)】
中國(guó)期刊全文數(shù)據(jù)庫(kù) 前10條
1 王素紅;;聲吶技術(shù)及其應(yīng)用[J];現(xiàn)代物理知識(shí);2009年06期
2 舒清;;泰坦尼克悲劇后的發(fā)明——講述“聲吶”的故事[J];發(fā)明與創(chuàng)新(綜合版);2010年01期
3 朱革非,張宏彬;小型綜合平面聲吶陣的研制[J];聲學(xué)技術(shù);1991年02期
4 李良忠;朱春紅;;提高聲吶微機(jī)系統(tǒng)的可靠性的方法[J];海洋技術(shù);1991年01期
5 錢炳興;聲吶接收系統(tǒng)中的座標(biāo)變換技術(shù)[J];聲學(xué)技術(shù);1996年01期
6 許稼,蔣興舟,朱W,
本文編號(hào):2263732
本文鏈接:http://sikaile.net/guanlilunwen/gongchengguanli/2263732.html
最近更新
教材專著