A Novel Bistatic Joint Radar-Communication System in Multi-path Environments

TL;DR

This paper introduces a bistatic joint radar-communication system designed for multi-path environments, featuring a novel waveform, joint detection, and low-cost channel equalization, demonstrating robust performance and low error rates.

Contribution

It proposes a new bistatic JRC system with a joint waveform and detection process suitable for multi-path environments, enhancing robustness and reducing complexity.

Findings

Symbol error rate similar to binary frequency shift keying

Less than 2 dB SNR increase needed in multi-path environments

Detection performance is robust to unknown information

Abstract

Radar detection and communication can be operated simultaneously in joint radar-communication (JRC) system. In this paper, we propose a bistatic JRC system which is applicable in multi-path environments. Basing on a novel joint waveform, a joint detection process is designed for both target detection and channel estimation. Meanwhile, a low-cost channel equalization method that utilizes the channel state information acquired from the detection process is proposed. The numerical results show that the symbol error rate (SER) of the proposed system is similar to that of the binary frequency shift keying system, and the signal to noise ratio requirement in multi-path environments is less than 2 dB higher compared with that in single-path environment to reach a SER of 10-5. Besides, the knowledge of the embedded information is not required for the joint detection process and the detection performance is robust to unknown information.