On what principle does the X-band radar system find the enemy?

Keywords X-band Doppler weather radar technical indicators, working principle, key technology overview The X-band fully coherent Doppler weather radar newly developed by Sichuang Company is a new type of weather radar carefully designed according to the functional specifications of the new generation weather radar of China Meteorological Bureau and the operational characteristics of the army. In the design, many latest radar technologies and computer technologies are adopted, combined with the valuable experience summarized by meteorologists in analyzing meteorological data for more than ten years. It is mainly used to detect meteorological target information such as near-field thunderstorm, rainstorm and large-scale precipitation; The monitoring distance of large-scale precipitation weather such as tropical cyclone and rainstorm can be more than 300km, and the effective monitoring and identification distance of small and medium-scale strong weather phenomena such as hail cloud, tornado and hail is more than 150km. Using dual-frequency fading velocity ambiguity technology, the maximum radial wind speed measurement range is 48 m/s, and it has certain clear sky echo detection ability, which can obtain the information of environmental wind field before the storm and predict the future weather evolution. It is a powerful tool for short-term weather forecast. The radar design fully applies the environmental humanization engineering design technology, with advanced performance and technical indicators, compact and beautiful structure, stable and reliable work, simple operation and strong environmental adaptability. Main technical features of radar: ● Klystron amplification chain fully coherent transmitter ● Large dynamic digital IF receiver ● Signal processor based on network transmission ● Multi-mode range ambiguity resolution technology ● Antenna calibration technology using solar noise ● Real-time calibration technology ● single-phase power supply system.