Implementation of Multi-core Embedded System on
Compound Guidance System
He Chen, Liang Yin, Guihua Peng
The School of Information and Electronics
Beijing Institute of Technology
Beijing,100081, China
chenhe@bit.edu.cn
Abstract – In this paper the architecture and single-chip
integration technology of multi-source information fusion
processor for the application of millimeter wave/infrared
(MMW/IR) compound guidance seeker are researched. Some key
technologies of multi-core embedded system have been resolved.
Information processing integrated system based on SoPC is built
according to MMW/IR seeker specific applications. A large
number of simulation and experiment results show that this
system architecture is effective and robust. The system model has
a strong generality and compatibility which can be extended to
other multi-mode compound guidance systems.
Keywords- MMW/IR compound guidance signal processing; multi-
core embedded system; SoPC (system on a programmable chip);
signal-chip integration technology; data fusion
I.
INTRODUCTION
Electromagnetic environment is more and more complex,
the means of interference come out one after the other, and
stealth technology is more advanced in modern war.
Moreover, the number of target detected and tracked is
increased substantially, battlefield integrated decision-making
and real-time threat assessment is strictly required. Therefore,
a single mode seeker system has been difficult to adapt to the
needs of the modern battlefield. Now, compound guidance
technology combining different bands is one of the main
directions in precision guidance technology, which can make
full use of respective advantages and improve the
antagonizing capabilities and hitting precision of weapons
systems greatly. Generally speaking, the compound guidance
of active/passive millimeter wave and passive infrared is a
better configuration. So far, no goals can do millimeter wave
and infrared stealth at the same time. Both Chinese and
foreign researchers have engaged widespread and thorough
research in multi-source information process and data fusion
technology including the fusion system structural design,
fusion algorithm, chip design technology and so on. For
example, Raytheon Company modified Sea Sparrow air
Missile into RIM27R (ESSM) on the basis of the RIM27M. It
transformed the original single-pulse radar seeker into
Radar/Infrared Seeker. USA, Germany and Denmark jointly
developed RAM seeker which used passive microwave/IR
compound seeker. The most famous MMW/IR terminal
guidance is American Sense and Destroy Armour, called
"SADARM". Therefore, it has important military significance
and application value to research the MMW/IR seeker multi-
source information processing system
[1]
.
Recently, many researchers have made a lot of research
results in real-time signal processing system of dual-mode or
multi-mode compound guidance based on the board which
includes Multi-DSP and Multi-FPGA. However, the volume
of this system is large, the coordination and synchronization
between the chips are complicated because it includes multiple
processing chips
[2]-[4]
. The emergence of SoPC technology
represents the latest technology trends of ASIC design, also is
one of the goals of weapons information processing system
development. The rapid development of microelectronics
makes it possible to integrate and embed multiple processor
cores in a FPGA chip (including the CPU or DSP softcore and
hardcore)
[5]-[10]
, so that the various subsystems of weapon
system can be implemented in a FPGA chip.
In this paper a kind of SoPC design is introduced, which
can achieve all processing from data sampling to MMW/IR
information fusion with a FPGA chip.
II. T
HE BASIC ARCHITECTURE
The system can receive two or more targets information
because of dual-mode or multi-mode compound guidance
seeker. Compared to a single seeker system, the architecture
has changed dramatically. Different sensors have different
distances and measurement accuracy, so data from different
sensors are needed to fuse, called multi-sensor data fusion, to
obtain the best results.
The structure of data fusion can be divided into
centralized, distributed and hybrid. The structure that all the
sensor data are sent to centre processing unit to fusion is
named centralized structure. Its main advantage is that all the
sensor data are received, and main disadvantage is that the
processing data are large and it is difficult to meet the real-
time requirement. The structure that each sensor first deals
with the data received by itself to get target parameters and
then send target parameters to the fusion centre is named
distributed structure. Its advantage is that the data of fusion
centre handling is less, relatively speaking, and it is possible to
4348
978-1-4577-0321-8/11/$26.00 ©2011 IEEE
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