Shallow stratum profile equipment is widely used in marine engineering survey. It has the advantages of high portability, high efficiency, high frequency and high resolution. The random noise, multiple waves and some other factors may reduce the profile quality and resolution seriously, so practical operation largely depends on sea states. This paper analyzes the data processing and equipment upgrading of shallow stratum profile, and puts forward several kinds of methods to suppress noise and improve the quality of data. The dimensional source broadens the frequency band of shallow stratum profile, obtaining deeper profile and higher resolution. Multi-channel receiving system data are more conducive to indoor data processing. For the shallow stratum profile data, researcher should firstly identify the source and characteristics of noise. Secondly, the bandpass filter, predictable deconvolution and related filter should be properly dealt with, so as to obtain high-quality shallow stratum profile. |