Title :
A low range-sidelobe pulse compression technique for spaceborne rain radar
Author :
Sato, Kenji ; Hanado, Hiroshi ; Kumagai, Hirosh
Author_Institution :
Communications Res. Lab., Ibaraki, Japan
Abstract :
A method using a digital-expansion and analog-compression technique for making a compressed pulse with a very low range-sidelobe level for future application to spaceborne rain radar is studied. In this method, the transmission signal which is modulated both in frequency and in amplitude is generated digitally, and the signal is compressed using a surface acoustic wave dispersive delay line. A range-sidelobe suppression of more than 60 dB is obtained in the calculation, and a 54 dB suppression is attained in test measurement
Keywords :
atmospheric measuring apparatus; meteorological radar; microwave circuits; pulse compression; pulse shaping circuits; radar transmitters; radio transmitters; rain; remote sensing by radar; spaceborne radar; surface acoustic wave signal processing; SHF; analog-compression; atmosphere; compressed pulse; digital-expansion; geophysical measurement technique; low range-sidelobe pulse compression; meteorological radar; microwave radar; pulse forming method; rain; rainfall; range-sidelobe suppression; remote sensing; spaceborne radar; surface acoustic wave dispersive delay line; transmission signal; Acoustic pulses; Amplitude modulation; Digital modulation; Frequency modulation; Pulse compression methods; Radar applications; Rain; Signal generators; Spaceborne radar; Surface acoustic waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516381
