Title :
RF electronics digital chirp for the Spaceborne Imaging Radar-C instrument
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The SIR-C (Spaceborne Imaging Radar-C) RF electronics subsystem generates the multifrequency RF signals to drive the antenna distributed array high-power amplifiers. The digital frequency step chirp signals are designed to allow flexibility in the selection of radar parameters such a range bandwidth to improve resolution, and pulsewidth to reduce DC power usage.<>
Keywords :
digital circuits; driver circuits; microwave imaging; pulse generators; radar equipment; remote sensing by radar; RF electronics; Spaceborne Imaging Radar-C instrument; antenna distributed array; chirp generator; digital chirp; high-power amplifiers; multifrequency RF signals; Antenna arrays; Chirp; Distributed power generation; Drives; High-resolution imaging; Multifrequency antennas; Pulse amplifiers; Radio frequency; Signal generators; Spaceborne radar;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147221
