BLOCKED SPECTRUM COMPRESSIVE SENSING BASED ON ROOT-MUSIC ALGORITHM FOR SAR IMAGE

被引：2
作者：
Li, Xiaobo [1 ]
Chen, Jie [1 ]
Zhu, Yanqing [1 ]
机构：
[1] Beihang Univ, Sch Elect Informat Engn, Beijing, Peoples R China
来源：
2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2012年
关键词：
SAR image; compressive sensing; block; root-music algorithm; signal reconstruction;
D O I：
10.1109/IGARSS.2012.6350959
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In order to effectively reduce the storage volume of complex image data in high-resolution synthetic aperture radar (SAR), blocked spectrum compressive framework [1][2] based on Root-MUSIC algorithm is proposed. In this paper block-wise processing [3] of SAR image method is introduced, which can effectively reduce the storage space of measurement matrix. Gaussian random matrix is employed as observation matrix [4][5] to obtain observed value of each sub-block. Model parameters can be calculated by means of Root-MUSIC algorithm. Spectrum signal is reconstructed from small amount of measurements. Simulation results with real spatial-sparse SAR image demonstrate that data storage capacity can be reduced to as low as 1.17%, which validate the effectiveness of the method.
引用
收藏
页码：2094 / 2096
页数：3
相关论文
共 12 条
[1]  
Baraniuk Richard, 2007, 2007 IEEE Radar Conference, P128, DOI 10.1109/RADAR.2007.374203
[2]  
Candès EJ, 2008, IEEE SIGNAL PROC MAG, V25, P21, DOI 10.1109/MSP.2007.914731
[3]   Compressed sensing [J].
Donoho, DL .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (04) :1289-1306
[4]   On compressive sensing applied to radar [J].
Ender, Joachim H. G. .
SIGNAL PROCESSING, 2010, 90 (05) :1402-1414
[5]  
Gan Lu, 2007, C DIG SIGN PROC DSP
[6]  
Huang Q, 2010, IEEE T GEOSCI REMOTE, V48, P1408, DOI 10.1109/TGRS.2009.2030321
[7]   Xampling: Analog Data Compression [J].
Mishali, Moshe ;
Eldar, Yonina C. .
2010 DATA COMPRESSION CONFERENCE (DCC 2010), 2010, :366-375
[8]  
Nord Michael E., 2009, IEEE T GEOSCIENCE RE, V47
[9]   COMPRESSION AND RADIATION OF HIGH-POWER SHORT RF PULSES. I. ENERGY ACCUMULATION IN DIRECT-FLOW WAVEGUIDE COMPRESSORS [J].
Sirenko, K. ;
Pazynin, V. ;
Sirenko, Y. ;
Bagci, H. .
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, 2011, 116 :239-270
[10]   A Novel Strategy for Radar Imaging Based on Compressive Sensing [J].
Tello Alonso, Marivi ;
Lopez-Dekker, Paco ;
Mallorqui, Jordi J. .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2010, 48 (12) :4285-4295
12