针对压制干扰和质心干扰的特点，分别建立了噪声干扰模型、信号功率衰减模型和质心干扰模型。
To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.
建立了目标噪声信号传播和衰减的数学模型。
Build target acoustic signal's transmission and attenuation math model.
本文在考虑地震烈度评定和预测的不确定性的基础上，提出建立烈度衰减概率模型的方法。
A method is presented for use in establishing probability model of seismic intensity attenuation in regions with abundant data of isoseismal maps.
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