Transmitting end of multi-frequency sub-channel array communication system, receiving end and system

A channel array and communication system technology, applied in the field of multi-channel wireless communication systems, can solve the problems of difficult application of spread spectrum technology, discrete, discontinuous, etc.

Active Publication Date: 2020-10-20
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the realization of spread spectrum communication requires a continuous spectrum width, and in many practical wireless communication environments, the spectrum that can be used is often discrete and discontinuous, so spread spectrum technology is difficult to apply

Method used

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  • Transmitting end of multi-frequency sub-channel array communication system, receiving end and system
  • Transmitting end of multi-frequency sub-channel array communication system, receiving end and system
  • Transmitting end of multi-frequency sub-channel array communication system, receiving end and system

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Embodiment Construction

[0072] The technical solution of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0073] For the transmitting end of the multi-frequency sub-channel array communication system of the present invention, its system block diagram can be found in figure 1 , including a baseband signal input terminal, an optimization unit, an adder, a transmitting antenna and at least two transmitting terminal channels, wherein the baseband signal input terminal is connected to the input terminal of each transmitting terminal channel, and the output terminal of each transmitting terminal channel They are respectively connected to each input end of the adder in one-to-one correspondence, and the output end of the adder is connected to the transmitting antenna; for any channel of the transmitting end, it includes an amplitude adjustment unit, a modulation unit, a filter unit and a power amplification unit, and the amplitude ad...

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Abstract

The present invention relates to a communication technology, the objective of the invention is to effectively utilize discrete spectrum. The transmission reliability and the data rate of the wirelesscommunication system are improved; the invention provides a transmitting end of a multi-frequency sub-channel array communication system, a receiving end and a system. The technical scheme can be summarized as follows: a plurality of frequency bands are utilized to transmit signals with the same reduced amplitude, and signal energy from different channels is aggregated through coherent combination, so that the received signal-to-noise ratio and the signal transmission reliability are improved, the data transmission rate and capacity are improved, and the method is suitable for an array communication system.

Description

technical field [0001] The present invention relates to communication technology, in particular to the technology of multi-channel wireless communication system. Background technique [0002] In wireless communication, there are often some unoccupied frequencies in the space occupied by the communication range of the transmitter and receiver. These spectrum resources can be used to improve the transmission performance of the wireless communication system, such as transmission reliability and data rate. Mining these spectrum resources actually increases the transmission bandwidth of the system, which is very beneficial to the improvement of system performance. On the other hand, many wireless communication systems have wide frequency bands, and spread spectrum communication systems use spread spectrum to improve system transmission reliability and spectrum efficiency. However, the realization of spread spectrum communication requires a continuous spectrum width, and in many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/04H04B1/16
CPCH04B1/005H04B1/0483H04B1/16
Inventor 周渊平夏文龙
Owner SICHUAN UNIV
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