Analysis of Sea Clutter Characteristics of Digital Array Multi-Channel Ubiquitous Radar

As an important influencing factor of radar on sea target detection, the study of sea clutter has always been the focus of radar target detection. Based on the sea clutter data measured by the digital array multi-channel ubiquitous radar, this paper analyzes the multi-channel sea clutter characteristics from the time-frequency analysis, correlation and amplitude characteristics, establishes the multi-channel radar sea clutter signal model, proposes the analysis method of multi-channel sea clutter, and uses the differences of multiple channels to improve the accuracy of the analysis parameters and the accuracy of model fitting. The analysis results show that the multi-channel sea clutter data can provide richer time-frequency information in the direction dimension, reveal the time, distance and channel correlation of sea clutter signals in different channels, and can understand the amplitude characteristics of sea clutter more comprehensively, and there are different statistical distribution models for different channels.