Pulse ultra-broadband communication method based on multi-domain coordinated multi-address technology

Abstract

The present invention provides an impulse ultra-wideband communication method basing on a multi-field cooperative multiple access technique. The invention is a communication method of an impulse ultra-wideband system multiple access basing on multiple field cooperation to settle the problem of higher system error code rate caused by the increasing of the number of the describer and the increased probability of collision of different user signals in the ultra-wideband system. Firstly a linear superposition coefficient is calculated and is stored in a transmitting end superposition coefficient memorizer. A fundamental pulse waveform gn which is obtained by executing parallel moving weighted-superposition to the generated Chips waveform modulates the information b (t). The fundamental pulse waveform obtains a transmitting signal sn (t) according to the time hopping of the time-hopping sequence. The sn (t) is divided to two signals at the receiving end. The two signals are respectively executed with pn stage and 2-pn stage Fourier Transforms. When the domain filtering wave is executed with fractional Fourier Transform, a -pn stage and pn-2 stage fractional Fourier Transforms are respectively executed. The time domain reconstruction is obtained by adding two signals. According to the pulse waveform with a same shape of the transmitting end and the time-hopping sequence, a formwork signal generator generates an integration formwork signal and is related to the signal after reconstruction. The determination is executed according the relative result and the modulating mode and the information output apparatus outputs.

Description

technical field [0001] The invention relates to an ultra wide-band (Ultra Wide-Band) wireless communication technology, in particular to a multiple-access communication method of a pulse ultra-wide band system based on multi-domain coordination. Background technique [0002] The emergence of ultra-wideband technology applied to radar and communication can be traced back to the 1960s. Due to the limitation of technology and industrial development level, the development of ultra-wideband technology is slow. Since the mid-1990s, the United States has developed a variety of ultra-wideband radio communication, radar, imaging and high-precision positioning systems, as well as ultra-wideband systems with comprehensive functions such as communication positioning and communication radar, as special equipment for the military and government departments. The UWB radio system has been practically applied, but it was not until 1993 that Professor Scholtz of the Communication Science Inst...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that when the number of users increases in the existing pulse ultra-wideband system, the probability of different user signal collisions increases accordingly, resulting in a high bit error rate of the system, the present invention provides a multi-domain cooperative multiple access technology-based Impulse UWB communication method

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