本文通过对噪声的分析,证明了从符号位记录恢复振幅的可能性。随后介绍了实现符号位水平迭加的方法和效果。一些试验表明,符号位水平迭加方法强调反射波的相干程度,因而在剖面上突出了弱反射波。文章指出,随着符号位技术的发展,过去认为比较难以实现的方法,有可能得到方便的应用。 This article demonstrates the possibility of recovering amplitude from sign bit records by analyzing noise. Then introduces the method and effect of realizing the sign bit level superposition. Some experiments show that the sign bit level superposition method emphasizes the degree of coherence of the reflected wave, thus highlighting the weak reflected wave in the profile. The article points out that with the development of the sign bit technology, it is possible to get a convenient application in the past, which was considered as a more difficult method to achieve.