Contents & References of Investigation of the performance and simulation of CVOR and DVOR navigation systems in multi-track channels
List:
Chapter One: Introduction of CVOR and DVOR navigation system and description of their operation principles 2
Introduction. 22
1-1- Definitions and introduction of words 22
1-2- Mission and function of the VOR system. 23
1-3- Navigation applications of the VOR system. 23
1-4- Explaining the principles of the CVOR system. 24
1-4-1- CVOR transmitter antenna. 25
1-4-2- Structure and function of CVOR ground station. 25
1-4-3- CVOR transmitter horizontal pattern. 27
1-4-4- How to rotate the band-side antenna pattern and create a heart-shaped pattern. 28
1-4-5- Diagram of transmitter and transmitted signal. 31
1-4-6- CVOR transmission signal relationships. 33
1-4-7- CVOR frequency spectrum. 34
1-5- Explaining the principles of DVOR operation. 35
1-5-1- DVOR antenna. 35
1-5-2- Structure and function of DVOR ground station. 35
1-5-3- horizontal pattern of DVOR transmitter. 38
1-5-4- The method of electrical rotation of band-side antennas. 38
1-5-5- block diagram of DVOR transmitter. 38
1-5-6- DVOR transmission signal relationships. 39
1-5-7- The frequency spectrum of the received signal of the DVOR system. 40
1-5-8- DVOR ground check. 40
1-6- VOR signal silence cone area. 42
1-7- The relationship between the phase difference of two 30 Hz signals and the position of the aircraft in the VOR system. 42
1-8- Specifications of the ground site of the VOR and its surroundings. 43
z
1-9- VOR receiver. 44
Title
1-9-1- Principles of side calculation. 44
1-9-2- Processing operations in the receiver 44
1-9-3- Received signal at the input of the receiver 45
1-10- Determining the signal characteristics of the ground station telecommunication link. 45
1-11- signal coverage. 46
1-12- VOR navigation system parameters. 47
1-13- Conclusion. 50
The second chapter: Reviewing the research done regarding CVOR and DVOR. 51
Introduction. 52
2-1- CVOR and DVOR angle error in reflective N conditions 54
2-1-1- CVOR signal processing algorithm. 54
2-1-2- DVOR signal processing algorithm. 56
2-2- Simulating the angle measurement error. 61
2-3- Conclusion. 61
Chapter 3: Investigation and simulation of air communication channels. 62
Introduction. 63
3-1- Generalities. 63
3-2- Multipath channel model for air links. 65
3-2-1- Large scale feeding. 65
3-2-2- Small scale feeding. 66
3-3- Statistical model of ground-to-air channels in the VHF band. 70
3-3-1- flight scenario on the route. 73
3-3-2- Aircraft arrival and departure scenarios 75
3-3-3- Taxi scenario. 77
3-3-4- Parking scenario. 78
3-4- Aggregation of channel parameters in different scenarios for simulation. 79
R
3-5- The method of selecting random channel parameters for the processing system. 80
Title Page
3-6- Simulation of the statistical models of received signals in ground-to-air channels 81
3-7- Conclusion. 83
Chapter 4: Investigation and simulation of multipath effects on CVOR and DVOR navigation system performance 84
Introduction. 85
4-1- Presentation of receiver and channel parameters and its simulation. 85
4-2-Relationships of the received signal under the influence of the channel. 92
4-3- Calculating the dynamic range of the receiver 94
4-4- Revealing the power of the received signal. 95
4-5- Determining the error of the navigation system only in the presence of noise and without multipath signal. 98
4-6- Summarizing the considered conditions and parameters and selecting the scenario. 101
4-7- Presentation of simulation results. 102
4-8- Summary and conclusion. 115
Chapter five: conclusions and suggestions. 117
The fifth chapter. 118
Conclusion and suggestions. 118
List of references. 120
>> Appendix <<. 122
Appendix 1: Detailed description of the functional principles of the Alford loop antenna. 123
Appendix Two: The frequency of the transmitted and received channels of the VOR and LOC system. 125
Appendix three: Morse code. 126
Appendix Four: Feeding Riley and Rice. 127
Source:
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