Radar-Communication Integration Based on DSSS Techniques

Study of the Target Self-Interference in a Low-Complexity OFDM-Based Radar Receiver

“…As such, it directly addresses the well-known spectrum congestion problem which is mostly due to the never-ending hunger for spectral resources of radar and communications systems [4]. Accordingly, for the last two decades, several radar-communications systems involving direct-sequence spread spectrum (DSSS) techniques [5], linear frequency modulated (LFM) waveforms [6], [7] and multicarrier signals, among others, have been investigated in various configurations. This paper focuses on the "monostatic broadcast channel topology" [3] also referred to as RadCom [8], as sketched in Fig.…”

Spectrum sharing methods for the coexistence of multiple RF systems: A survey

“…• Joint Resource Allocation: In systems where radar imaging and communications are integrated into the same hardware [192]- [194], joint resource allocation schemes can leverage the integration such that the spectrum usage efficiency is maximized. For example, the joint automotive radar and communication (JARC) system is studied in [171], in which radar imaging and vehicular communications are performed through the same antenna phase array in the 79 GHz millimeter wave band.…”

“…Most of the existing works on the coexistence of radar and communication systems focus on physical layer issues such as joint waveform and OFDM modulation design [187] [188][189] [190] [191]. Among the few research projects targeting higher layers, SSPARC program supported [184] few coordination operations in communication systems, high spatial spectral efficiency significant changes to radar systems, preknowledge of communication system by DARPA targets the design of spectrum sharing mechanisms to improve radar and communication joint operational capabilities [4] in the S-band (2 GHz -4 GHz).…”

A software defined radar system for joint communication and sensing

“…In [4], analog chirp filters were used to produce an up-chirp, which is used as a radar waveform, coupled with a down-chirp that is used as a spread spectrum communication signal; this approach results in low correlation between the radar and communication signals. In [5], the use of direct sequence spread spectrum (DSSS) was proposed which will also result in a low correlation between the radar and communication signals.…”