River Profile Velocity Analysis And Display System Design Based On Surface Flow Data

The development and utilization of river water resources is closely related to human survival and development.It is of strategic significance to strengthen the research and protection of river environment for the development of national and social economy.Non-contact measurement technology represented by radar remote sensing technology has great advantages in dealing with special river basins geological conditions and environmental conditions,non-contact measurement technology also has great advantages in measuring efficiency and safety.The amount of data obtained from the radar remote sensing method is very large.The traditional performance method is mainly in the form of data report,and the form of data report is very unintuitive.Computer visualization technology has developed in the last 30 years.Computer visualization technology has great advantages in efficiency and speed in the display and processing of big data.This paper studies rivers,the river surface velocity is extracted from the remote sensing echo data of uhf radar.The river profile velocity was extracted and analyzed by correlation algorithm.The river hydrological parameter display system is designed and implemented.The main research contents of this paper include the following points:1?The Doppler spectrum of radar echo data is analyzed.The principle of measuring surface velocity of river by radar remote sensing technology is introduced.The direction of echo data is determined by the principle of digital beam forming.The distribution map of the region is obtained by the measurement data,and the measured data and actual data are compared and analyzed.2?Introduces three classical algorithms for calculating section velocity by surface velocity,and compares the three methods according to the change of surface velocity and depth of water3?Analyze the system requirements and design the overall architecture of the system.The layout of each interface was designed according to the requirements analysis.Microsoft Visual Studio 2010 software is used to implement a simple and user-friendly system.Link the data to the display system,the design principle,production method and application process of the special data file are described in detail.