Title :
Impedance control and match in remote sensing image real-time compression system
Author :
He, Feng ; Jiang, Hongxu ; Xiao, Chaosheng ; Wang, Yuanpeng
Author_Institution :
Digital Media Lab., Beihang Univ., Beijing, China
Abstract :
In a multi-FPGAs based remote sensing image realtime compression system, high-speed circuit design is carried out and a variety of signal integrity problems caused by system impedance discontinuity are analyzed. On the foundation of transmission line impedance control, taking the high-speed bus of DDR2 SDRAM as an example, signal reflection problem brought by impedance mismatch of the signal chain has been solved through HyperLynx software simulation and analysis. In this system, signal integrity problem caused by system impedance mismatch is effectively solved and reliability of the system is obviously improved, thus it achieves the expected goal of hardware design.
Keywords :
data compression; remote sensing; high-speed circuit design; image real-time compression; impedance control; multi FPGA; remote sensing; signal chain; signal integrity problem; signal reflection problem; Driver circuits; Hardware; Image coding; Impedance; Reflection; Remote sensing; Resistance; high-speed circuit; impedance control; impedance match; reflection noise; signal integrity;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5646372
