Variable binary coding and decoding method based on communication integrated signals of MIMO radar

Abstract

The invention relates to the radar communication technology and provides a variable binary coding and decoding method based on communication integrated signals of an MIMO radar. The variable binary coding and decoding method solves the problem that prior information of a coding party and a decoding party is possibly not synchronous in existing MIMO radar communications. According to the technical scheme, the method comprises the steps that firstly (M-1)*Ls spread spectrum subcode strings are optimized out through a genetic algorithm and are averaged to be M-1 sections, each spread spectrum subcode string corresponds to a channel and serves as a standby subcode string of the channel, then communication information to be sent by the nth channel is mapped to be a numerical value Dn, then the numerical value Dn comprising the communication information is converted to be a variable binary number, an arrangement serial number of the spread spectrum subcode strings is obtained, spread spectrum subcode strings of the launch channels carrying the information are generated sequentially again, finally the generated spread spectrum subcode strings of the launch channels carrying the information are added into a benchmark channel signal sequence, and a spread spectrum subcode string distribution list is formed and is launched out after signal generation and up conversion. The variable binary coding and decoding method based on the communication integrated signals of the MIMO radar has the advantages of increasing the throughput rate and being applicable to the MIMO radar.

Description

technical field [0001] The invention relates to radar communication technology, in particular to MIMO radar / communication radio frequency integration technology. Background technique [0002] The two major systems of radar and communication have different functions, but both rely on the transmission and reception of electromagnetic waves, and there are considerable similarities or similarities in the system structure. The development of solid-state devices and digital information technology has made it feasible for radar and communication to share hardware resources. The radar communication integrated system can realize the real-time data transmission required for guidance and control while completing space target detection, tracking and positioning, which is helpful for realizing generalization, miniaturization and multi-functionalization of equipment without increasing the complexity of the system. Improving the automation and networking level of the equipment system unde...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming that the prior information of both encoding and decoding parties may not be synchronized in the current MIMO radar communication, and to provide a variable encoding and decoding method based on the integrated signal of MIMO radar communication

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