Receiver Optimization of the L-Band Digital Aeronautical Communication System
نویسنده
چکیده
In this thesis, we consider the interference cancellation problem for the broadband digital aeronautical communication system. We investigate the L-band digital aeronautical communication system (L-DACS) in the presence of distance measuring equipment (DME) interference. First, we describe the OFDM receiver of the LDACS1. In addition, we discuss the impacts of the DME spectrum on the subcarriers of the L-DACS1. Then, we briefly point out the mitigation methods for canceling the effects of DME interference signals. To model the impacts of DME interference at the L-DACS1 receiver, we adopt a Gaussian mixture (GM) model for impulse noise superimposed to additive white Gaussian noise (AWGN). Thus, we obtain the statistical parameters of the GM model in terms of the energy and duration of DME pulses. Based on this modeling, we introduce a receiver optimization step of the L-DACS1 in the presence of DME interference. Herewith, we realize the optimum detector of OFDM systems in GM noise to cancel out the effect of DME interference.
منابع مشابه
Implementation of an adaptive burst DQPSK receiver over shallow water acoustic channel
In an environment such as underwater channel where placing test equipments are difficult to handle, it is much practical to have hardware simulators to examine suitably designed transceivers (transmitter/receiver). The simulators of this kind will then allow researchers to observe their intentions and carry out repetitive tests to find suitable digital coding/decoding algorithms. In this p...
متن کاملPower Amplifier Linearization Using Six-port Receiver for DVB-S2 Satellite Communications
A digital look-up table adaptive predistortion technique using a six-port receiver for power amplifier linearization is presented. The system is designed in Ka-band for a DVB-S2 satellite link. We use a six-port receiver at the linearizationloop in place of classic heterodyne receivers. The six-port receiver is implemented by the use of passive microwavecircuits and detector diodes. This approa...
متن کاملEfficient Spectrum Sensing for Aeronautical LDACS Using Low-Power Correlators
Air traffic has seen tremendous growth over the last decade pushing the need for enhanced air traffic management schemes. L-band Digital Aeronautical Communication System (LDACS) is gaining traction as a scheme of choice, and aims to exploit the capabilities of modern digital communication techniques and computing architectures. Cognitive radio based approaches have also been proposed for LDACS...
متن کاملThe SANDRA Communications Concept - Integration of Radios
The Single European Sky Air Traffic Management (ATM) research programme SESAR has identified continued growth in demand for aircraft communications as air traffic increases and communications become more network centric. Alongside existing systems such as VHF Data Link Mode 2, new systems such as the L-band Digital Aeronautical Communication System (LDACS) and the Aeronautical Mobile Airport Co...
متن کاملActs Broadband Aeronautical Experiment
In the last decade, the demand for reliable data, voice, and video satellite communication links between aircraft and ground to improve air traffic control, airline management, and to meet the growing demand for passenger communications has increased significantly. It is expected that in the near future, the spectrum required for aeronautical communication services will grow significantly beyon...
متن کامل