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題, 您可以本頁添加留言。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

基于局部直角坐標(biāo)和子區(qū)域處理的彈載SAR頻域成像算法

別博文,  孫路,  邢孟道,  梁毅,  孫光才

別博文, 孫路, 邢孟道, 梁毅, 孫光才. 基于局部直角坐標(biāo)和子區(qū)域處理的彈載SAR頻域成像算法[J]. 電子與信息學(xué)報(bào), 2018, 40(8): 1779-1786. doi: 10.11999/JEIT171107
引用本文: 別博文, 孫路, 邢孟道, 梁毅, 孫光才. 基于局部直角坐標(biāo)和子區(qū)域處理的彈載SAR頻域成像算法[J]. 電子與信息學(xué)報(bào), 2018, 40(8): 1779-1786. doi: 10.11999/JEIT171107
BIE Bowen, SUN Lu, XING Mengdao, LIANG Yi, SUN Guangcai. A Frequency-domain Algorithm Based on Local Cartesian Coordinate and Subregion Processing for Missile-borne SAR Imaging[J]. Journal of Electronics & Information Technology, 2018, 40(8): 1779-1786. doi: 10.11999/JEIT171107
Citation: BIE Bowen, SUN Lu, XING Mengdao, LIANG Yi, SUN Guangcai. A Frequency-domain Algorithm Based on Local Cartesian Coordinate and Subregion Processing for Missile-borne SAR Imaging[J]. Journal of Electronics & Information Technology, 2018, 40(8): 1779-1786. doi: 10.11999/JEIT171107

基于局部直角坐標(biāo)和子區(qū)域處理的彈載SAR頻域成像算法

doi: 10.11999/JEIT171107
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61621005), 高分辨率對(duì)地觀測(cè)系統(tǒng)重大專項(xiàng)(41-Y20A13-9001-15116)

A Frequency-domain Algorithm Based on Local Cartesian Coordinate and Subregion Processing for Missile-borne SAR Imaging

Funds: 

The National Natural Science Foundation of China (61621005), The High Resolution Earth Observation System major Project (41-Y20A13-9001-15116)

  • 摘要: 針對(duì)彈載SAR平臺(tái)非直線軌跡運(yùn)動(dòng)和大斜視成像的特點(diǎn)，該文提出一種基于局部直角坐標(biāo)和子區(qū)域處理的頻域成像算法。對(duì)大斜視成像模式，采用局部直角坐標(biāo)系建模的方法，使距離走動(dòng)校正后的方位信號(hào)具有更高的近似精度；為精確補(bǔ)償包絡(luò)和相位的方位空變，采用子區(qū)域成像的方式，可顯著提高場(chǎng)景邊緣處的聚焦質(zhì)量；將各子區(qū)域圖像校正至統(tǒng)一的地面坐標(biāo)系下，即可得到最終的SAR圖像。點(diǎn)目標(biāo)仿真和實(shí)測(cè)數(shù)據(jù)驗(yàn)證了所提算法的有效性。
    Abstract: The missile-borne SAR platform has the characteristics of nonlinear trajectory and high-squint mode. A frequency-domain imaging algorithm based on local Cartesian coordinate and subregion processing is proposed. For high-squint mode, the range model is built in local Cartesian coordinate to match accurately the azimuth signal after range walk correction. To compensate the azimuth-dependent range cell migration and Doppler parameters accurately, the imaging area is divided into several subregions. The final focused image can be obtained when all the subregion images are interpolated uniformly into the ground coordinate. Finally, the point targets simulation and real SAR data verify the effectiveness of the proposed algorithm.
    • HTML全文
  • CUMMING I G and FRANK H W. Digital Processing of Synthetic Aperture Radar Data[M]. Washington DC: Artech House, 2005: 1-30.
    保錚, 邢孟道, 王彤. 雷達(dá)成像技術(shù)[M]. 北京: 電子工業(yè)出版社, 2005: 9.
    LIANG Y, LI Zhenyu, ZENG Letian, et al. A high-order phase correction approach for focusing HS-SAR small- aperture data of high-speed moving platforms[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015, 8(9): 4551-4561. doi: 10.1109/ JSTARS.2015.2459765.
    李震宇, 陳濺來, 梁毅, 等. 帶有多普勒中心空變校正的大斜視SAR成像方法[J]. 西安電子科技大學(xué)學(xué)報(bào)(自然科學(xué)版), 2016, 43(3): 19-24. doi: 10.3969/j.issn.1001-2400.2016.03.004. LI Zhenyu, CHEN Jianlai, LIANG Yi, et al. Imaging method for highly squinted SAR with spatially-variant Doppler centroid correction[J]. Journal of Xidian University (Natural Science), 2016, 43(3): 19-24. doi: 10.3969/j.issn.1001-2400. 2016.03.004.
    LI Zhenyu, LIANG Yi, XIMG Mengdao, et al. Focusing of highly squinted SAR data with frequency nonlinear chirp scaling[J]. IEEE Geoscience and Remote Sensing Letters, 2016, 13(1): 23-27. doi: 10.1109/LGRS.2015.2492681.
    懷園園, 梁毅, 李震宇, 等. 一種基于方位譜重采樣的大斜視子孔徑SAR成像改進(jìn)Omega-K算法[J]. 電子與信息學(xué)報(bào), 2015, 37(7): 1743-1750. doi: 10.11999/JEIT141383. HUAI Yuanyuan, LIANG Yi, LI Zhenyu, et al. Modified Omega-K algorithm for sub-aperture high squint SAR imaging based on azimuth resampling[J]. Journal of Electronics Information Technology, 2015, 37(7): 1743-1750. doi: 10.11999/JEIT141383.
    LIANG Yi, HUAI Yuanyuan, DING Jinshan, et al. A modified algorithm for HS-SAR small-aperture data imaging[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(6): 3710-3721. doi: 10.1109/TGRS.2016. 2525787.
    LI Zhenyu, XING Mengdao, LIANG Yi, et al. A frequency- domain imaging algorithm for highly squinted SAR mounted on maneuvering platforms with nonlinear trajectory[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(7): 4023-4038. doi: 10.1109/TGRS.2016.2535391.
    ZENG Tao, LI Yinghe, DING Zegang, et al. Subaperture approach based on azimuth-dependent range cell migration correction and azimuth focusing parameter equalization for maneuvering high-squint-mode SAR[J]. IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(12): 6718-6734. doi: 10.1109/TGRS.2015.2447393.
    LI Zhenyu, XING Mengdao, XING Wenjie, et al. A modified equivalent range model and wavenumber-domain imaging approach for high-resolution-high-squint SAR with curved trajectory[J]. IEEE Transactions on Geoscience and Remote Sensing, 2017, 55(7): 3721-3734. doi: 10.1109/TGRS.2017. 2678763.
    LI Zhenyu, LIANG Yi, XING Mengdao, et al. An improved range model and omega-K-based imaging algorithm for high-squint SAR with curved trajectory and constant acceleration[J]. IEEE Geoscience and Remote Sensing Letters, 2016, 13(5): 656-660. doi: 10.1109/LGRS.2016.2533631.
    江淮, 陳思, 趙惠昌, 等. 一種彈載SAR子孔徑成像算法[J]. 電子與信息學(xué)報(bào), 2017, 39(10): 2526-2530. doi: 10.11999/ JEIT161337. JIANG Huai, CHEN Si, ZHAO Huichang, et al. Subaperture imaging algorithm for missile-borne SAR[J]. Journal of Electronics Information Technology, 2017, 39(10): 2526-2530. doi: 10.11999/JEIT161337.
    李震宇, 梁毅, 邢孟道, 等. 彈載合成孔徑雷達(dá)大斜視子孔徑頻域相位濾波成像算法[J].電子與信息學(xué)報(bào), 2015, 37(4): 953-960. doi: 10.11999/JEIT140618. LI Zhenyu, LIANG Yi, XING Mengdao, et al. A frequency phase filtering imaging algorithm for highly squint missile-borne synthetic aperture radar with subaperture[J]. Journal of Electronics Information Technology, 2015, 37(4): 953-960. doi: 10.11999/JEIT140618.
    TANG Shiyang, ZHANG Linrang, GUO Ping, et al. An omega-K algorithm for highly squinted missile-borne SAR with constant acceleration[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(9): 1569-1573. doi: 10.1109/LGRS. 2014.2301718.
    SUN Guangcai, XING Mengdao, WANG Yong, et al. A 2-D space-variant chirp scaling algorithm based on the RCM equalization and subband synthesis to process geosynchronous SAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(8): 4868-4880. doi: 10.1109/TGRS.2013.2285721.
    NEO Y L, FRANK W, 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
  • 文章訪問數(shù):  1455
  • HTML全文瀏覽量:  193
  • PDF下載量:  231
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2017-11-24
  • 修回日期:  2018-04-16
  • 刊出日期:  2018-08-19

目錄

    /

    返回文章
    返回