A high reliability on-board parallel system based on multiple DSPs

Author

Bo Zhang ; Yuzhuo Fu ; Ting Liu ; Xiaoyan Peng

Author_Institution

Sch. of Microelectron., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2013

fDate

20-22 Dec. 2013

Firstpage

1984

Lastpage

1988

Abstract

Data volumes produced by various space missions have increased significantly, creating an urgent need for on-board systems with higher performance and reliability. A “2 parallel + 1 standby” system based on multiple DSPs is proposed in this paper. This system consists of three DSPs and four FPGAs. Two DSPs work in parallel and the rest one is standby. The standby DSP replaces the fault DSP when an unrecoverable error is detected by radiation hardening modules. We applied a 2048-point FFT on this system to evaluate the performance. Then we injected some errors into the system and repeated the FFT application. The experimental results show that the system reaches a speedup of 1.63 and could recover from errors in a short time.

Keywords

digital signal processing chips; field programmable gate arrays; radiation hardening (electronics); reliability; 2048-point FFT; FPGA; multiple DSP; onboard parallel system; radiation hardening modules; reliability; Digital signal processing; Error correction codes; Field programmable gate arrays; Radiation hardening (electronics); Reliability; SDRAM; Software; DSP; parallel; radiation hardening; reliablity;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on

Conference_Location

Shengyang

Print_ISBN

978-1-4799-2564-3

Type

conf

DOI

10.1109/MEC.2013.6885376

Filename

6885376