一级黄色片免费播放|中国黄色视频播放片|日本三级a|可以直接考播黄片影视免费一级毛片

高級(jí)搜索

留言板

尊敬的讀者、作者、審稿人, 關(guān)于本刊的投稿、審稿、編輯和出版的任何問(wèn)題, 您可以本頁(yè)添加留言。我們將盡快給您答復(fù)。謝謝您的支持!

姓名
郵箱
手機(jī)號(hào)碼
標(biāo)題
留言內(nèi)容
驗(yàn)證碼

基于橢圓模型與改進(jìn)NLCS的一站固定式大基線雙站SAR成像算法

鐘華 胡劍 張松 孫閩紅

鐘華, 胡劍, 張松, 孫閩紅. 基于橢圓模型與改進(jìn)NLCS的一站固定式大基線雙站SAR成像算法[J]. 電子與信息學(xué)報(bào), 2016, 38(12): 3174-3181. doi: 10.11999/JEIT161016
引用本文: 鐘華, 胡劍, 張松, 孫閩紅. 基于橢圓模型與改進(jìn)NLCS的一站固定式大基線雙站SAR成像算法[J]. 電子與信息學(xué)報(bào), 2016, 38(12): 3174-3181. doi: 10.11999/JEIT161016
ZHONG Hua, HU Jian, ZHANG Song, SUN Minhong. Improved NLCS Algorithm Based on Ellipse Model for One-stationary Bistatic SAR with Large Baseline[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3174-3181. doi: 10.11999/JEIT161016
Citation: ZHONG Hua, HU Jian, ZHANG Song, SUN Minhong. Improved NLCS Algorithm Based on Ellipse Model for One-stationary Bistatic SAR with Large Baseline[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3174-3181. doi: 10.11999/JEIT161016

基于橢圓模型與改進(jìn)NLCS的一站固定式大基線雙站SAR成像算法

doi: 10.11999/JEIT161016
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61301248, 61271214),中國(guó)航天科技創(chuàng)新基金

Improved NLCS Algorithm Based on Ellipse Model for One-stationary Bistatic SAR with Large Baseline

Funds: 

The National Natural Science Foundation of China (61301248, 61271214), Chinese Innovation Foundation of Aerospace Science and Technology

  • 摘要: 在一站固定式雙站SAR成像處理中,該文針對(duì)距離-方位2維空變描述不夠準(zhǔn)確導(dǎo)致成像性能迅速下降的問(wèn)題,提出一種新的橢圓模型精確描述一站固定式大基線雙站SAR的距離-方位空變特性,并基于此推導(dǎo)了改進(jìn)的非線性調(diào)頻變標(biāo)(NLCS)成像算法。在距離向,首先利用相位去斜完成距離去走動(dòng)和多普勒中心矯正,接著對(duì)剩余距離單元徙動(dòng)和距離方位高次耦合項(xiàng)進(jìn)行了去除處理。在方位向,根據(jù)一站固定式雙站SAR的2維空變特性,提出了一種用于描述回波距離-方位空變特性的橢圓模型,基于該模型對(duì)空變的回波方位調(diào)頻率進(jìn)行了分析,并重新推導(dǎo)NLCS算法的方位變標(biāo)函數(shù)和方位壓縮系數(shù)。理論分析與仿真結(jié)果證明,所提出的模型不僅揭示了一站固定式大基線雙站SAR數(shù)據(jù)的2維空變特性,而且對(duì)回波的距離-方位空變給出了更精確的解析式描述,使得基于該模型改進(jìn)的NLCS算法可以獲得更好的成像處理效果。
  • 楊建宇. 雙基地合成孔徑雷達(dá)技術(shù)[J]. 電子科技大學(xué)學(xué)報(bào), 2016, 45(4): 482-501. doi: 10.3969/J.issn.1001-0548.2016.04. 001.
    YANG J Y. Bistatic synthetic aperture radar technology[J]. Journal of University of Electronic Science and Technology of China, 2016, 45(4): 482-501. doi: 10.3969/J.issn.1001-0548. 2016.04.001.
    曾濤. 雙基地合成孔徑雷達(dá)發(fā)展現(xiàn)狀與趨勢(shì)分析[J]. 雷達(dá)學(xué)報(bào), 2012, 1(4): 329-341. doi: 10.3724/SP.J.1300.2012.20093.
    ZENG T. Bistatic SAR: State of the art and development trend[J]. Journal of Radars, 2012, 1(4): 329-341. doi: 10. 3724/SP.J.1300.2012.20093.
    孟自強(qiáng), 李亞超, 邢孟道, 等. 基于斜視等效的彈載雙基前視SAR相位空變校正方法[J]. 電子與信息學(xué)報(bào), 2016, 38(3): 613-621. doi: 10.11999/JEIT150782.
    MENG Ziqiang, LI Yachao, XING Mengdao, et al. Phase space-variance correction method for missile-borne bistatic forward-looking SAR based on equivalent range equation[J]. Journal of Electronics Information Technology, 2016, 38(3): 613-621. doi: 10.11999/JEIT150782.
    LI Z Y, WU J J, HUANG Y L, et al. Ground-moving target imaging and velocity estimation based on mismatched compression for bistatic forward-looking SAR[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(6): 3277-3291. doi: 10.1109/TGRS.2016.2514494.
    CHEN S, YUAN Y, ZHANG S N, et al. A new imaging algorithm for forward-looking missile-borne bistatic SAR[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(4): 1543-1552. doi: 10.1109/JSTARS.2015.2507260.
    ZHANG H, DENG Y K, WANG R, et al. Spaceborne/ stationary bistatic SAR imaging with TerraSAR-X as an illuminator in staring-spotlight mode[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(9): 5203-5216. doi: 10.1109/TGRS.2016.2558294.
    WANG R, WANG W, SHAO Y F, et al. First bistatic demonstration of digital beamforming in elevation with TerraSAR-X as an illuminator[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(2): 842-849. doi: 10.1109/TGRS.2015.2467176.
    ZENG T, HU C, WU L X, et al. Extended NLCS algorithm of BiSAR systems with a squinted transmitter and a fixed receiver: Theory and experimental confirmation[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(10): 5019-5030. doi: 10.1109/TGRS.2013.2276048.
    QIU X L, HU D H, and DING C B. An improved NLCS algorithm with capability analysis for one-stationary BiSAR [J]. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(10): 3179-3186. doi: 10.1109/TGRS.2008.921569.
    WONG F H and YEO T S. New applications of nonlinear chirp scaling in SAR data processing[J]. IEEE Transactions on Geoscience and Remote Sensing, 2001, 39(5): 946-953. doi: 10.1109/36.921412.
    WONG F H, CUMMING I G, and NEO Y L. Focusing bistatic SAR data using the nonlinear chirp scaling algorithm[J]. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(9): 2493-2505. doi: 10.1109/TGRS.2008. 917599.
    LI D, LIAO G S, WANG W, et al. Extended azimuth nonlinear chirp scaling algorithm for bistatic SAR processing in high-resolution highly squinted mode[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(6): 1134-1138. doi: 10.1109/LGRS.2013.2288292.
    WANG W, LIAO G S, LI D, et al. Focus improvement of squint bistatic SAR data using azimuth nonlinear chirp scaling[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(1): 229-233. doi: 10.1109/LGRS.2013.2254106.
    LI Z Y, WU J J, YI Q Y, et al. Bistatic forward-looking SAR ground moving target detection and imaging[J]. IEEE Transactions on Aerospace and Electronic Systems, 2015, 51(2): 1000-1016. doi: 10.1109/TAES.2014.130539.
    NEO Y L, WONG F H, and CUMMING I G. A two- dimensional spectrum for bistatic SAR processing using series reversion[J]. IEEE Geoscience and Remote Sensing Letters, 2007, 4(1): 93-96. doi: 10.1109/LGRS.2006.885862.
  • 加載中
計(jì)量
  • 文章訪問(wèn)數(shù):  1345
  • HTML全文瀏覽量:  118
  • PDF下載量:  273
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2016-09-30
  • 修回日期:  2016-11-25
  • 刊出日期:  2016-12-19

目錄

    /

    返回文章
    返回