Signal Generation and Processing Method of Space-Time Complementary Coding Radar Communication Integrated System

Abstract

The invention belongs to the field of electronic information and communication, and discloses a signal generation and processing method of a space-time complementary coding radar communication integrated system. The steps include: 1) constructing a space-time complementary coding objective function and solving it to obtain a space-time complementary coding set; 2) coding the communication content and The time-space complementary encoding is used for correlation calculations and then chaotic disturbance secondary encryption is performed; 3) The integrated system radiates radar coded signals and communication coded signals respectively; 4) The radar receiver is processed based on the general radar receiving process; 5) The signal received by the communication terminal is processed by the general After the communication receiving process, the code is demodulated, and the code of the communication content is obtained by reverse inversion of the local key code and the space-time complementary coding convention. The invention uses complementary code idea, modern optimization method, chaotic synchronization and encryption technology to construct signal generation and receiving processing method, which enhances the flexibility of integrated system, maximizes radar detection and communication transmission and confidentiality performance, and reduces the cost of receiving processor .

Description

technical field [0001] The invention relates to a radar communication integrated system signal generation and processing method, in particular to a radar signal and communication signal generation and processing method based on space-time complementary coding technology, which belongs to the field of electronic information and communication. Background technique [0002] Although both are based on the principles of electromagnetism, radar systems and communication systems are two completely different electronic systems. In recent years, due to the rise of the concept of multi-function, the development of software technology, and the advancement of electronic technology, the research on integrating radar and communication into an integrated system has attracted more and more attention. Among them, signal sharing is one of the key technologies for the real realization of radar communication integration. The existing typical signal sharing methods mainly include the following ...

AI Technical Summary

Problems solved by technology

The existing methods have verified the feasibility of the integrated signal design to a certain extent, but they are insufficient in considering the functional characteristics of communication and radar, such as the different requirements for the signal of communication coding security and confidentiality, and the spatial differences of communication objects and radar objects. , After the integrated signal design, the radar and communication performance will be reduced to varying degrees and other unfavorable factors

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