Pulse Compression with Ultra-low Range Sidelobe for Spaceborne Meteorology Radars
There is a very strict requirement for the range sidelobe,when spaceborne radar with pulse compression is used for detecting of meteorological phenomena such as precipitations.A novel technique for compressing pulse and suppressing range sidelobe is proposed:A spread chirp signal with wider bandwidth and longer duration is transmitted by the radar transmitter;the received signal and the transmitted signal are respectively truncated with their duration and bandwidth and weighted on their amplitudeInfrequency domain; pulse compression is accomplished through correlation processing. By the presented the techniques,the achieved peak range sidelobe level can be less then -110 dB.WithThis new technique,it is avoided that the high power amplifier can only operateInnonsaturated status which leads to the degradation of efficiency when compressing chirp signal,and the achieved range sidelobe is not sensitive to Doppler shifts.
Yin Hong-gang Dong Xiao-long
Graduate University of the Chinese Academy of Sciences,Beijing 100039,China Center for Space Science Center for Space Science and Applied Research CAS,Beijing 100080,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
796-798
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）