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EPIRB检测仪的应用研究

作　者: Tauseef Ahmed
导　师: 姜弢
学　校: 哈尔滨工程大学
专　业: 通信与信息系统
关键词: EPIRB tester SDR
分类号: U676.82
类　型: 硕士论文
年　份: 2010年
下　载: 15次
引　用: 0次
阅　读: 论文下载

内容摘要

The safety of human life in the maritime industry is carried out by taking into the considerations which are proposed by the International Maritime Organization (IMO). When any emergency condition arises, there are certain set of rules which should be followed. The Global Maritime Distress and Safety System (GMDSS) describe those communication protocols which are meant to be carried out in the situation where there is a threat to human life, health, property or environment.The emergency position indicating radio beacon (EPIRB) is an important part of the GMDSS systems which transmits a 406 MHz identification signal which is received by search and rescue satellite-aided tracking (SARSAT) satellites which are in orbit around earth (GEOSAR and LEO satellite). The ground receiving station relays the position coordinates for the EPIRB as well as identification information relating to the vessel to which EPIRB was assigned. It is housed in a buoy which is designed to float on the surface of water, and the upper portion of the buoy includes an antenna cone which contains the transmitting antenna and in order to aid in visual location of EPIRB by the SAR vehicles, the top of the antenna cone is provided with light.The next generation of the EPIRB is software realized based on the theoretical fundamentals of software defined radio. The software based EPIRB and EPIRB tester has the same functionalities which are provided in the second generation 406 MHz EPIRB and is developed in the research project. These software based transceivers are tested on the Test case, which shows that the goals of the research project are achieved.

全文目录

ABSTRACT  4-8
Chapter 1 INTRODUCTION  8-16
  1.1 Background  8
  1.2 Global Maritime Distress Safety System (GMDSS)  8-14
    1.2.1 Concept of the GMDSS  9-13
    1.2.2 Classifications of the Sea Areas  13-14
  1.3 Goals of the Thesis  14
  1.4 Author's Contributions  14-15
  1.5 Overview of the Dissertation  15-16
Chapter 2 EMERGENCY POSITION-INDICATING RADIO BEACON  16-30
  2.1 Introduction  16-17
  2.2 EPIRB  17-18
  2.3 Types of EPIRB  18-21
    2.3.1 Class A  19
    2.3.2 Class B  19
    2.3.3 Class C  19
    2.3.4 Class S  19
    2.3.5 Category Ⅰ  19
    2.3.6 Category Ⅱ  19-20
    2.3.7 INMARSAT E  20
    2.3.8 121.5/243 MHz EPIRB  20
    2.3.9 The 406 MHz EPIRB  20-21
  2.4 Phased Out Beacons  21
  2.5 Registration of 406 MHz EPIRB  21
  2.6 Design and Specification of 406 MHz EPIRB  21-23
  2.7 The 406 MHz EPIRB Transmitter  23-26
    2.7.1 Digital Message Generator  24-25
    2.7.2 Modulator and 406 MHz Transmitter  25-26
  2.8 The 406 MHz EPIRB Tester  26-28
  2.9 Chapter Summary  28-30
Chapter 3 SOFTWARE DEFINED RADIO  30-38
  3.1 Introduction  30-31
  3.2 Software Defined Radio Definition and Objectives  31-32
  3.3 Software Defined Radio Architectures  32-34
    3.3.1 Ideal SDR Architecture  32-33
    3.3.2 Realistic SDR Architectures  33-34
  3.4 SDR Model for the EPIRB  34-36
  3.5 Chapter Summary  36-38
Chapter 4 SIMULATION OF THE EPIRB in MATLAB  38-46
  4.1 Introduction  38
  4.2 Bose-Chaudhuri-Hocquenhem(BCH)Codes  38-39
  4.3 Line Coding  39-41
  4.4 Total Transmission time  41-42
    4.4.1 Short Message  42
    4.4.2 Long Message  42
  4.5 Transmitter Power Output  42-45
  4.6 Chapter Summery  45-46
Chapter 5 DEVELOPMENT of THE EPIRB & its TESTER  46-61
  5.1 Introduction  46-48
  5.2 The EPIRB Transmitter  48-51
  5.3 The EPIRB Tester(Receiver)  51-57
  5.4 EPIRB Tester GUI  57-61
CONCLUSION  61-62
REFERENCES  62-65
PUBLICATIONS  65-66
ACKNOWLEGEMENT  66

EPIRB检测仪的应用研究

内容摘要

全文目录

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