Title :
The digital wide band chirp pulse generator and processor for Pi-SAR2
Author :
Matsuo, Shingo ; Fujimura, Takashi ; Oihara, Isamu ; Totsuka, Eiji ; Ohura, Yoshitaka ; Kimura, Tsunekazu
Author_Institution :
Guidance & Electro-Opt. Div., NEC Corp. (NEC), Tokyo, Japan
Abstract :
This paper shows the technology and the performance of the digital wide band chirp pulse generator and processor for Pi-SAR2, and the history of its development at NEC. This chirp pulse generator and processor can generate the 150, 300 or 500MHz bandwidth chirp pulse and process the same bandwidth video signal. The offset video method is applied for this component in order to achieve small phase error, instead of I/Q video method for the conventional SAR system. Pi-SAR2 realized 0.3m resolution SAR image with the 500 MHz bandwidth using this component.
Keywords :
pulse generators; video signal processing; Pi-SAR2; digital wide band chirp pulse generator; video signal; Atmospheric modeling; Bandwidth; Chirp; Generators; Image resolution; Pulse generation; Signal resolution; Pi-SAR2; SAR; chirp pulse generator;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5653144