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本文介绍了一种约束反投影双参数———密度与体变模量成象方法。说明在Ｒａｄｏｎ反变换中引入约束因子后，可以合理地应用测井等已知信息。并通过对实际地震记录进行的反演成象实验结果表明，该方法抗噪能力较强，计算量可以接受，能够提供更多的地下介质变化信息。
This paper presents a constrained backprojection two-parameter density and bulk modulus imaging method. It shows that the known information such as well log can be reasonably applied after the constraint factor is introduced in Radon inverse transform. Experimental results of inversion imaging on actual seismic records show that this method is robust against noise and computationally acceptable, and can provide more information about the change of underground media.