Costas CW frequency hopping radar waveform: peak sidelobe improvement using Golay complementary sequences

Pace, P.E.; Ng, Cho Yiu

doi:10.1049/el.2010.2209

Cited by 19 publications

(8 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Data Optional Fields It is important to note here that the Golay sequences have been previously studied in radar waveform applications [27]- [29]. The composite ambiguity function of GCS is studied in [30] and found to be suitable for radar applications [28].…”

Section: Stf Cef Header Data Datamentioning

confidence: 99%

A Survey on Joint Communication-Radar Systems

Mazahir¹,

Ahmed²,

Alouini³

2020

Preprint

View full text Add to dashboard Cite

<div>Concerns for spectrum congestion have spurred extensive research efforts on efficient spectrum management. Therefore, devising schemes</div><div>for spectrum sharing between radar and wireless communication systems has become an important area of research. Joint communications-radar (JCR) system is among the several approaches proposed to achieve this objective. In JCR systems, additional components and processes are added to an existing standardized communication platform to enable radar functions. Moreover, the communication waveform is used as an integrated JCR waveform, i.e., the same signal is used to communicate information to a receiver and to perform radar detection and estimation operations for a nearby target. The most common application of JCR systems is found in vehicle-to-vehicle (V2V) communication scenario. In this article, an overview of the spectrum sharing methods is presented, with focus on JCR systems in automotive applications. We first review the recent works on IEEE 802.11p- and IEEE 802.11ad-based radars. A basic description of the modeling of JCR system and channels is presented, followed by discussions on main components and processes employed in various JCR systems. Mainly, we are interested in how the radar detection and estimation functions are performed in conjunction with the communication receiver functions with minimal alterations in the existing system. At the end of the paper, some performance trade-offs between the communication and radar sub-systems are also discussed.</div>

show abstract

Section: Stf Cef Header Data Datamentioning

confidence: 99%

A Survey on Joint Communication-Radar Systems

Mazahir¹,

Ahmed²,

Alouini³

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Pace et al used Golay complementary sequences to encode Costa frequency hopping continuous waveforms. Their results indicated the improvement in sidelobe compared to the same frequency hopping waveform encoded with the Barker code [33]. Utilizing Golay complementary sequences as the probe signal and combining with single sideband transmission, Alejos et al improved the existing noise radar system.…”

Section: Introductionmentioning

confidence: 99%

A High Signal–Noise Ratio UWB Radar for Buried Pipe Location Using Golay Complementary Sequences

Liu

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

A Golay-based ultra wideband ground penetrating for underground pipes location is proposed and experimentally demonstrated. Golay complementary codes with the code length of 1024 and frequency of 1 GHz are used as the probe signals. The two-dimensional image of the buried pipes is achieved by a correlation method and a back-projection algorithm. The experimental results show that both the plastic pipe and metallic pipe can be located with a range resolution of 10 cm. Furthermore, as the Golay complementary sequences are a pair of complementary sequences, the sum of their correlation function yields twice the value of the peak at the target position and zero elsewhere. Thus, compared with the stepped frequency signal radar or chaotic signal radar, the Golay-based radar can significantly improve the signal–noise ratio and has the capability of deep detection.

show abstract

“…Indeed, in their basic version, Costas signals are used with constant frequency pulses, while their modified versions use sub‐pulse modulation. Phase coded Costas sub‐pulses and linear frequency modulation (LFM) modulated ones are proposed in [16–19]. Other Costas sub‐pulse natures such as spectrally balanced Slepian sequences are explored in order to improve signal diversity [20].…”

Section: Introductionmentioning

confidence: 99%