ULTRA WIDEBAND TECHNOLOGIES IN MOBILE OBJECT MANAGEMENT SYSTEMS

Abstract

The subject of study is the processes of noise immunity ensuring of wireless control channels and mobile objects communication. The aim of article is to increase the capacity and noise immunity of control and communication systems under the natural and intentional interference influence. The concept is based on the technology of ultra-wideband communication that consists in the transmission of low-power coded pulses in a very wide bandwidth without a carrier wave. The task is to ensure stable and safe operation of mobile objects. Methods used: methods of analytical, simulation, and temporal position-pulse coding. The following results were obtained. A security concept has been developed for wireless control channels and mobile objects communication. It is shown that in order to obtain high noise immunity of control and communication channels and to protect information from interception, it is necessary to apply wireless ultra-wideband communication technology, which allows providing of large capacity and transmission rate. The possibility of joint interference-free operation in the same frequency range of both traditional narrow-band communication systems and systems using ultra-wideband signals is grounded. A technical solution for the design of an ultra-wideband receiving-transmitting antenna system is proposed. Conclusion. The usage of channels with an ultra-wide bandwidth allows an almost unlimited increase in the number of control and communication channels of mobile objects. Pre-distribution between the channels of orthogonal codes implements the process of control and communication without interception of information and mutual interference. Moreover, the usage of the temporal position-pulse coding method prevents intersymbol distortions of coding ultrashort pulses. It also reduces the rate of information signals distortion caused by its multipath propagation that guarantees the safety of managing mobile objects.

Keywords

• control system
• mobile object
• noise immunity
• line capacity