Integrated waveform coexistence transmission system of measurement and control signal and ofdm signal

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 difficulty in meeting high-precision measurement requirements, and achieve good carrier suppression, reduced complexity, and reliable transmission.
CN111884971BActive Publication Date: 2022-07-2910TH RES INST OF CETC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
10TH RES INST OF CETC
Publication Date
2022-07-29

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Abstract

An integrated waveform coexistence transmission system for measurement and control signals and OFDM signals disclosed in the present invention aims to provide a high-speed, real-time, and reliable transmission waveform coexistence transmission system. The data information bits generated by the information module are amplitude modulated by the LDPC coding module and the QAM modulation module, and the OFDM module generates an orthogonal multiplexed OFDM signal. Superposition; after the measurement and control information module on the measurement and control link is modulated by the convolutional coding module, the BPSK modulation module and the spectrum spread by the spread spectrum module, the BPSK signal stream is mapped to the carrier, and after the power adjustment, together with the data signal in the channel superposition module The power domain superposition is completed, and the superposition forms an integrated waveform signal in which the spread spectrum measurement and control signal and the orthogonal frequency division multiplexing OFDM signal coexist.
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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. Background technique

[0002] 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 measurement and c...

Claims

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