Research Of Key Technology For Monitoring System In Phased Array WPR

Phased-array WPR(wind profile radar) is a special wind-detecting radar, which is widely applied in testing atmosphere, supplies resource of pollution meteorology for environmental impact assessment; advances forecasting standard for disastrous weather, such as thunderstorm, gale;monitors and predicts forest-fire; charts the pilot's course which skimps on fuel; supplies air current data which is needed by weapon position, shooting range, base etc.With the rapid development of modern process and information technology,electrical products which is based on embedded system have been widely used in people's life. This improved the technology level of traditional technology manufacture and service style. NiosII microprocessor based on SOPC technology is a changeable, general RISC CPU. The developer can conveniently design the system with SOPC Builder. So the high integration, high reliability monitoring system in phased array wind profile radar which is realized by FPGA is a possible and essential means.The article analyzes and researches the key technology of phased array WPR and gives the newest answer to the key technology. With the NiosII microprocessor based on SOPC which is developed by American, the article realizes coordination transformation of azimuth angle and pitching angle which is used in geodetic axis, deck axis and antenna axis on shipborne phased-array WPR antenna beam. and the developer also implements shipborne phased-array WPR's revising and compensating prediction algorithm of electron waves, achieves the real-time and correct tracking for aircraft azimuth target. The result shows that the wasting time of one coordination transformation is about 7ms and the dissipative time of one time kalman prediction algorithm is less than 1ms.The results satisfy the designing demand of one revising periods which is 25ms.