Signal generation and processing method for 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 for a space-time complementary coding radar communication integrated system. The method comprises the following steps: 1) constructing a space-time complementary coding objective function and solving to obtain a space-time complementary coding set; 2) performing chaotic disturbance secondary encryption after performing correlation operation on communication content coding and space-time complementary coding; 3) radiating a radar coding signal and a communication coding signal by the integrated system respectively; 4) processing a radar receiving end based on a general radar receiving processing flow; and 5) demodulating and coding a signal received by a communication end after the general communication receiving processing flow, and performing conventional reverse inversion through local key coding and space-time complementary coding to obtain the communication content coding. According to the signal generation and processing method disclosed by the invention, a signal generation and receiving processing method is constructed by applying technologies such as a complementary code idea, a modern optimization method, chaotic synchronization and encryption, so that the flexibility of the integrated system is enhanced, the radar detection, communication transmission and security performance are maximized, and meanwhile the cost of a receiving processor is reduced.

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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