A novel radar waveform compatible with communication

Chen, Xingbo; Wang, Xiaomo; Xu, Shanfeng; Zhang, Jing

doi:10.1109/iccps.2011.6092272

Cited by 66 publications

(23 citation statements)

References 5 publications

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“…In addition to the frequency components caused by f mod , which carry the data-information, two frequency terms can be observed in (8). The first one results from the offset between the starting frequencies f 0,i of the ramp.…”

Section: I M E a S U R E M E N T A N D C O M M U N I C A T I O N mentioning

confidence: 99%

“…In [7], a concept of amplitude modulation is presented to enhance a classical FMCW radar system with the ability to send data to specially designed receivers. In [8], an analysis of the combined waveform of frequency-shift keying (FSK) and linear frequency modulation, using up-and downchirps for communication and distance measurement, respectively is given. In [9], a specially designed direct digital synthesis (DDS)-based hardware-realization is used for characterization in a laboratory.…”

Section: I M E a S U R E M E N T A N D C O M M U N I C A T I O N mentioning

confidence: 99%

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In-chirp FSK communication between cooperative 77-GHz radar stations integrating variable power distribution between ranging and communication system

Scheiblhofer

Feger

Haderer³

et al. 2016

Int. J. Microw. Wireless Technol.

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We present the realization of a cooperative radar system for ranging applications with integrated data-transmission capability. The simultaneous transmission is performed by the radar-hardware without the necessity of additional components or an auxiliary data-link. Therefore, the data are directly embedded in the transmitted chirp of a frequency-modulated continuouswave radar sensor. A second station, acting as receiver, uses an identical, but unmodulated chirp for down-conversion. The resulting signal then is processed by a non-coherent demodulator setup, extracting the communication data. Measurement results from transmission of messages with different bit-rates are shown. By utilizing existing radar-hardware a transmission rate of up to 256 kbps is possible, without the need of a dedicated transceiver. Additionally, a method to optimize the ranging results by variable distribution of the available signal power between distance-measurement and communication system is presented.

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Section: I M E a S U R E M E N T A N D C O M M U N I C A T I O N mentioning

confidence: 99%

Section: I M E a S U R E M E N T A N D C O M M U N I C A T I O N mentioning

confidence: 99%

In-chirp FSK communication between cooperative 77-GHz radar stations integrating variable power distribution between ranging and communication system

Scheiblhofer

Feger

Haderer³

et al. 2016

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

show abstract

“…Other methodologies that have been applied to the radar-communications coexistence problem include signal sharing [10], [11] and waveform shaping [12]- [15]. In other research and applied systems radars based on communication system waveforms have been considered.…”

Section: A Backgroundmentioning

confidence: 99%

Cooperative radar and communications signaling: The estimation and information theory odd couple

Bliss

2014

2014 IEEE Radar Conference

176

119

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Abstract-We investigate cooperative radar and communications signaling. While each system typically considers the other system a source of interference, by considering the radar and communications operations to be a single joint system, the performance of both systems can, under certain conditions, be improved by the existence of the other. As an initial demonstration, we focus on the radar as relay scenario and present an approach denoted multiuser detection radar (MUDR). A novel joint estimation and information theoretic bound formulation is constructed for a receiver that observes communications and radar return in the same frequency allocation. The joint performance bound is presented in terms of the communication rate and the estimation rate of the system.

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“…Example of FDD mode approach with single-carrier waveform is [8], in which a Direct Sequence Spread Spectrum (DSSS) technique is proposed as method to avoid mutual interference between radar and communication data. In [9] the authors proposed a Linear Frequency Modulated (LFM) Minimum Shift Keying (MSK) waveform design while in [10] and [11] an approach based on the orthogonality between up-chirp and down-chirp signals able to reach 1 M b/s at a maximum range of 2 Km is presented and validated, respectively. Orthogonal Frequency Division Multiplexing (OFDM) waveforms [12] are widely used in radar systems nowadays for their high time-bandwidth product, and they also represent a natural candidate for the implementation of a multi-carrier joint radar-communication system [13].…”

Section: Introductionmentioning

confidence: 99%

Fractional fourier based waveform for a joint radar-communication system

Gaglione

Clemente

Ilioudis

et al. 2016

2016 IEEE Radar Conference (RadarConf)

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Abstract-The increasing demand of spectrum resources and the need to keep the size, weight and power consumption of modern radar as low as possible, has led to the development of solutions like joint radar-communication systems. In this paper a novel Fractional Fourier Transform (FrFT) based multiplexing scheme is presented as joint radar-communication technique. The FrFT is used to embed data into chirp sub-carriers with different time-frequency rates. Some optimisation procedures are also proposed, with the objective of improving the bandwidth occupancy and the bit rate and/or Bit Error Ratio (BER). The generated waveform is demonstrated to have a good rejection to distortions introduced by the channel, leading to low BER, while keeping good radar characteristics compared to a widely used Linear Frequency Modulated (LFM) pulse with same duration and bandwidth.

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A novel radar waveform compatible with communication

Cited by 66 publications

References 5 publications

In-chirp FSK communication between cooperative 77-GHz radar stations integrating variable power distribution between ranging and communication system

In-chirp FSK communication between cooperative 77-GHz radar stations integrating variable power distribution between ranging and communication system

Cooperative radar and communications signaling: The estimation and information theory odd couple

Fractional fourier based waveform for a joint radar-communication system

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