參數(shù)資料
型號(hào): GALAXY
英文描述: Galaxy Simulation Toolkit User's Guide
中文描述: 銀河仿真工具包用戶指南
文件頁(yè)數(shù): 4/23頁(yè)
文件大?。?/td> 435K
代理商: GALAXY
comtech
aha
corporation
PSGalaxy_STK_0100
A subsidiary of Comtech Telecommunications Corporation
Page 1 of 20
1.0
INTRODUCTION
The Galaxy Simulation Tool Kit is a Turbo
Product Code (TPC) simulator and Application
Programmers Interface (API) that enables
communication systems developers to integrate
TPC coding/decoding technology with system level
simulations. It allows system developers to evaluate
the performance of TPC technology under various
modulation formats and channel models prior to
building a hardware based system.
Two API options are available, a C/C++ API
and a Matlab API. The C/C++ code API includes a
sample project (developed with MSVC++ v6.0)
which gives samples of all API calls. The Matlab
API also includes a sample script (developed with
Matlab v5.0) which illustrates the API call.
Included with both APIs is an electronic user guide.
This user guide is intended to assist designers in
understanding how to operate the Galaxy Simulation
Tool Kit. It is also a reference guide for understanding
the various parameters that the user will specify prior
to performing simulations of Turbo Product Codes
(TPCs). Additional reference materials regarding
TPCs are available from AHA in the form of
Application notes and product specifications
Please note that the Galaxy Simulation Tool Kit
is a licensed product subject to AHA’s software
license agreement. A copy of this agreement is
included in the appendix of this document for your
reference. Be sure to carefully review this agreement
as you will be asked to accept the agreement when
you run the software on a computer.
1.1
CONVENTIONS, NOTATIONS AND
DEFINITIONS
– Code block - A data stream to be encoded or
decoded is segmented into blocks for processing
by the TPC core logic. Data in a code block is
configured as a 2D, 3D or enhanced array.
– Axis iteration - Decoding one axis of an array (all
x rows, all y columns, or all z columns).
– Full iteration - Decoding all axes of an array (all
rows and columns).
– Soft value - Input to the decoder from either an
Analog/Digital Converter(ADC) or digital
demodulator. Soft decode inputs to the TPC decoder
are used as confidence estimates of the binary value.
– Code rate - Ratio of the number of data bits to the
number of data and ECC bits.
– Axis code rate - Ratio of the number of data bits to
the number of total bits for a given axis.
– Data rate - The rate at which unencoded data is
input to the device when encoding or output from
the device when decoding.
– Channel Rate - The rate at which encoded data is
output from the device when encoding or input to
the device when decoding. Note that system
channel rate may be different due to external
synchronization marks or other overhead.
– (n1,k1)x(n2,k2) - A general representation of a
2D block code for use in the descriptions to follow
in this specification. For example, in a
(64,57)x(64,57) code; n1,n2=64 represents the
length of the data + ECC bits, and k1,k2=57
represents the length of only the data bits. 3D
codes are represented as (n1,k1)x(n2,k2)x(n3,k3)
– Vector - One row or column of data in a block.
– Latency - The time from the first bit of a block in
to first bit of the same block out.
– Hex values are represented with a prefix of “0x”,
such as register “0x00”. Binary values do not
contain a prefix.
2.0
GALAXY SOFTWARE LICENSE
The Galaxy Simulation Tool Kit is a licensed
product subject to AHA’s software license
agreement. The software is provided for evaluation
purposes only. The software cannot be copied or
shared to unauthorized users. By installing the
software the user is obligated to abide by the terms
of the software license. A complete copy of this
agreement is included in appendix A of this
document for your reference.
3.0
SOFTWARE INSTALLATION
Insert the Galaxy Simulation Toolkit CD and
run the setup program. The program instructs the
user to select a directory to place the Galaxy
software and documentation. The following
directories are created, and the files expanded and
copied to the appropriate directory:
AHA TPC Simulation
Galaxy Toolkit
Matlab Toolkit
TPC Publications
3.1
SYSTEM REQUIREMENTS
The minimum recommended system for using
the Galaxy simulation toolkit is a Pentium class PC
running at least at 400 MHz with 128 MBytes of
RAM. It will run on either Windows
95/98 or
Windows NT. Approximately 10 MBytes of free disk
space is required for installation. The C/C++ API
requires Microsoft Visual C++ 5.0 or higher. The
Matlab API requires Matlab version 5.3 or higher.
相關(guān)PDF資料
PDF描述
GASC-2410STM Aluminum Snap-In Capacitor; Capacitance: 5600uF; Voltage: 25V; Case Size: 22x25 mm; Packaging: Bulk
GASC-2410STM1 Aluminum Snap-In Capacitor; Capacitance: 6800uF; Voltage: 25V; Case Size: 22x30 mm; Packaging: Bulk
GASC-2410STM2 Aluminum Snap-In Capacitor; Capacitance: 10000uF; Voltage: 50V; Case Size: 35x35 mm; Packaging: Bulk
GASC-2410STM3 Aluminum Snap-In Capacitor; Capacitance: 12000uF; Voltage: 50V; Case Size: 30x50 mm; Packaging: Bulk
GB3210 GB3210-S01 PAL Configuration
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GALB-1 制造商:Thomas & Betts 功能描述:1/2"BX/SURF CVR,ALUM,LB-STYLE,XP 制造商:Thomas & Betts 功能描述:Outlet Boxes Hazardous Locations
GALB-1-OR 制造商:Thomas & Betts 功能描述:1/2BX/SURF CVR,LB-STYLE,XP,O-RING
GALB-2 制造商:Thomas & Betts 功能描述:3/4"BX/SURF CVR,ALUM,LB-STYLE,XP 制造商:Thomas & Betts 功能描述:Outlet Boxes Hazardous Locations
GALB-2-OR 制造商:Thomas & Betts 功能描述:3/4BX/SURF CVR,LB-STYLE,XP,O-RING
GALB-3-OR 制造商:Thomas & Betts 功能描述:1 BX/SURF CVR,LB-STYLE, XP, O-RING