CAJ | 학술논문

在Goldstein的合成孔径雷达干涉测量干涉相位图滤波算法基础上,构造了一种自适应的域加权系数来取代原先人工设定的经验值,并以局部相干系数计算其幂指数,解决了原算法在面对复杂干涉条纹图时,由于均采用一致性处理而导致的过滤波和欠滤波问题.仿真数据和实际ERS数据处理结果表明,改进算法在显著降低干涉相位噪声的同时,也很好地保持了相位分辨率.
재Goldstein적합성공경뢰체간섭측량간섭상위도려파산법기출상,구조료일충자괄응적역가권계수래취대원선인공설정적경험치,병이국부상간계수계산기멱지수,해결료원산법재면대복잡간섭조문도시,유우균채용일치성처리이도치적과려파화흠려파문제.방진수거화실제ERS수거처리결과표명,개진산법재현저강저간섭상위조성적동시,야흔호지보지료상위분변솔.
Based on the Goldstein algorithm for InSAR interferometic phase filtering,an auto-adaptive spectrum weight function is constructed in place of the original fixed value ascertained artificially,and its exponential power parameter is calculated by the local coherence.Over filtering and under filtering problems are solved when processing the complex interferometric stripes caused by the uniform filtering.Experimental results from simulated data and ERS data indicate the validity of the modification algorithm,with good denoising effect and nice preserving of the phase resolution.