FMCW Automotive Radars Using Only In-Phase Channel

Mitsumoto, Masashi; Kirimoto, Tetsuo; Uehara, Naohisa; Inatsune, Shigeho

doi:10.4271/1999-01-0486

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…Echo signal received by FMCW radar can be expressed as where A r (t) is the amplitude term and φ is the phase term of the echo. The beat frequency f beat of up-chirp and down-chirp can be expressed as [25]…”

Section: The Proposed Methodsmentioning

confidence: 99%

“…5, f beat is dependent on by both velocity and range. Therefore, due to range-Doppler coupling, ambiguity problem arises in velocity and range estimations of moving target [25]. Triangle LFM and V-LFM pulse waveforms created by combining up chirp and down chirp signals eliminate this problem as velocity components cancel each other out in the f beat equation.…”

Section: The Proposed Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

Sümen¹,

Kurt²,

Görçin³

2022

Preprint

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There is no doubt that we need to keep our eyes on the sky as satellite networks aim to address the demands of 6G and beyond communications systems. On the other hand, existence of millions of space debris pieces, large or small, poses a threat to the new space communications systems which consist of large number of small satellites, especially in the low-orbit. In this study, a dual-functioning pulsed linear frequency modulated (LFM) waveform at Terahertz (THz) bands is proposed for both wireless communications and space debris sensing over low-orbit inter-satellite links (ISLs). Initially, the ambiguity function of the proposed waveform is derived. Then, velocity and range estimation performance for radar function and bit error rate performance for the communications function are investigated. Simulation results indicate important performance gains in the THz-bands when compared to the legacy LFM systems.

show abstract

Section: The Proposed Methodsmentioning

confidence: 99%

Section: The Proposed Methodsmentioning

confidence: 99%

A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

Sümen¹,

Kurt²,

Görçin³

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…To combine the correct pair of target, an additional unmodulated continuous wave is required and a popular waveform is a trapezoid shape as shown in Figure 3 [5]. Since the Doppler frequency is measured in the period of unmodulated wave, the ambiguity between r f and d f in equation (3) and (4) `can be resolved as equation (5).…”

Section: The Proposed Algorithmmentioning

confidence: 98%

A meothod for multi-target range and velocity detection in automotive FMCW radar

Hyun

Lee

2009

2009 12th International IEEE Conference on Intelligent Transportation Systems

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FMCW(Frequency Modulation Continuous Wave) radar has many useful applications but a serious problems can occur in multi-target situations. Range-velocity processing should suppress so-called ghost targets and detect missing targets presented by beat frequency shift with Doppler frequency. In this paper, a new method is proposed for effective identification of the correct pairs of beat frequencies received from real targets.

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A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

Sumen

Kurt

Görçin

2022

GLOBECOM 2022 - 2022 IEEE Global Communications Conference

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FMCW Automotive Radars Using Only In-Phase Channel

Cited by 5 publications

References 2 publications

A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

A meothod for multi-target range and velocity detection in automotive FMCW radar

A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links

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