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Measurement and control signal and OFDM signal integrated waveform coexistence transmission system

A transmission system and signal technology, which is applied in the field of integrated waveform coexistence transmission system of measurement and control signals and OFDM signals, can solve problems such as difficult to meet high-precision measurement requirements, and achieve good carrier suppression, good performance gain, and reduced complexity. Effect

Active Publication Date: 2020-11-03
10TH RES INST OF CETC
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  • Application Information

AI Technical Summary

Problems solved by technology

The 5G communication system can meet the current large-capacity and high-speed communication needs in terms of system delay, access quantity, and transmission rate, and achieve ultra-high spectrum utilization. However, based on OFDM waveform subcarriers, orthogonal superposition and other Relevant physical characteristics, it is difficult to meet the high-precision measurement requirements

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  • Measurement and control signal and OFDM signal integrated waveform coexistence transmission system
  • Measurement and control signal and OFDM signal integrated waveform coexistence transmission system
  • Measurement and control signal and OFDM signal integrated waveform coexistence transmission system

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Embodiment Construction

[0020] The invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] see figure 1 . In the preferred embodiment described below, an integrated waveform coexistence transmission system for measurement and control signals and OFDM signals includes: at least one data link and one measurement and control link, wherein the data link is provided with serially connected data information modules , LDPC coding module, QAM modulation module, OFDM module and power adjustment module; the measurement and control link is provided with serially connected measurement and control information module, convolutional coding module, BPSK modulation module, spread spectrum module and measurement and control power adjustment module, it is characterized in that : In the data link, the data information bits generated by the data information module are amplitude modulated on two orthogonal carriers by the LDPC coding module and the QAM modulation ...

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Abstract

The invention discloses a measurement and control signal and OFDM signal integrated waveform coexistence transmission system, and aims to provide a high-speed, real-time and reliable-transmission waveform coexistence transmission system, which is realized through the following technical scheme: in a data link, data information bits generated by a data information module are subjected to amplitudemodulation through an LDPC encoding module and a QAM module; an OFDM module generates an orthogonal multiplexing signal, and the OFDM signal and the measurement and control signal are subjected to rate adjustment by a power adjustment module to complete superposition of a power domain in a channel superposition module; a measurement and control information module on a measurement and control linkmaps a BPSK signal flow to a carrier after being modulated by a convolutional encoding module and a BPSK modulation module and spread by a spread spectrum module, and the power domain superposition ofthe BPSK signal flow and a data signal is completed in a channel superposition module after power adjustment. An integrated waveform signal in which the spread spectrum measurement and control signaland the OFDM signal coexist is formed through superposing.

Description

technical field [0001] The invention relates to an integrated transmission and access system of measurement and control data transmission based on power domain superposition, which can be used in the technical fields of aviation, aerospace measurement and control communication, etc. Waveform transmission and access system. [0002] technical background [0003] With the development of aviation and aerospace, the construction of the integration system of space and earth, and the continuous emergence of new measurement and control technologies, and the coexistence of various measurement and control signal systems has emerged, resulting in the various stages of testing of remote sensing, remote control and data transmission systems. The tasks are getting more and more difficult, and the task cycle is getting tighter. Especially with the further integration of measurement and control technology and wireless communication technology, the increase of the number of access measureme...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L27/38
CPCH04L27/2601H04L27/2688H04L27/2691H04L27/3854H04L27/2692
Inventor 穆航刘田张毅袁田余湋严平
Owner 10TH RES INST OF CETC
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