Bench Top VDES Prototype - Software Defined Radio Team 2028 - - PowerPoint PPT Presentation

▶

Feb 05, 2023 27 likes •158 views

Bench Top VDES Prototype - Software Defined Radio Team 2028 Bridget Kennedy Brittany Smith Matthew Sodoski Sponsor : Irene Gonin at the US Coast Guard Research and Development Center Advisor: Liang Zhang Talk Outline Project Overview

SLIDE 1

Bench Top VDES Prototype - Software Defined Radio

Team 2028 Bridget Kennedy Brittany Smith Matthew Sodoski Sponsor: Irene Gonin at the US Coast Guard Research and Development Center Advisor: Liang Zhang

SLIDE 2

Talk Outline

Project Overview
Approach
Design Specifications
Constraints
Management
Timeline

SLIDE 3

Project Overview

Create a VDES system that can be used by the Coast

Guard

Software Defined Radio
Benchtop Model Using USRP

SLIDE 4

Background

AIS - Automatic Identification System
Created in the 1990s
Collision Prevention
Coast Guard
Created on August 4th, 1709
Enforces the Laws of Sea

SLIDE 5

Approach

Hardware

Radios in SDR Lab
AIS → ASM → VDE
Starting with transmitter

Software

Open-source
GNU Radio Companion

○ Python/C++ blocks

SLIDE 6

AIS - Automatic Identification System

Ship ID, Position, Course, Speed
9.6 kb Gaussian Minimum Shift Keying (GMSK)
High Data Link Layer
2250 time slots established every 60 seconds
20 Nautical Miles

SLIDE 7

ASM - Application Specific Message

Build off of AIS
Weather
Sea Level
Safety Concerns
IALA ASM

SLIDE 8

VDE - Very High Frequency Data Exchange

Satellite and Terrestrial
Graphical Information
Global Maritime Distress and Safety System Requirements
World Radiocommunication Conference

SLIDE 9

Constraints

Lack of Knowledge

○ We have limited knowledge on SDRs

Sponsor Location
Budget

○ SDRs are expensive!

Lack of VDE Info
Time

SLIDE 10

Project Management - RACI Chart

SLIDE 11

SLIDE 12

Overview

Create VDES with SDR

○ AIS ○ ASM ○ VDE

Currently learning how to use

the SDR software

SLIDE 13