Performance of the cross-correlator receiver for binary digital frequency modulation

Farrell, Kathryn; McLane, P.J.

doi:10.1109/26.592557

Cited by 11 publications

(1 citation statement)

References 9 publications

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“…Finally, a typical cross-correlator receiver consists of three stages: mixing the received signal with a sliding (delayed) reference signal, low-pass filtering and integrating. Likewise, the deramping technique of a FMCW radar is similar to cross-correlation [18], [19] i.e. matched filtering.…”

Section: Principle Of Fmcw Radar Techniquementioning

confidence: 99%

Millimetre-wave MIMO FMCW radar architecture towards highly integrated front-ends for high-resolution imaging applications

Mbeutcha¹

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High-resolution, compactness, scalability, efficiency – these are the critical requirements which imaging radar systems have to fulfil in applications such as environmental monitoring, cloud mapping, body sensing or autonomous driving. This thesis presents a modular millimetre-wave frequency modulated continuous-wave (FMCW) radar front-end solution intended for such applications. High-resolution is achieved by enlarging the operating frequency band of the radar system. This can be realized at millimetre-wave frequencies due to the large spectrum availability. Furthermore, the size of components decreasing with increasing frequency makes millimetre-wave systems a good candidate for compactness. However, the full integration of radar front-ends is a challenge at millimetre-wave frequencies due to poor signal integrity and spectral purity, which are essential for imaging applications. The proposed radar uses an alternative technique and tackles this limitation by featuring highly-integrable architectures, specifically the Hartley architecture for signal conversion and enhanced push-pull amplifier for harmonic suppression. The resolution of imaging radars can be further improved by increasing the number of transmitters and receivers. This has spurred the investigation of spectrum, time and energy-efficient multiplexing techniques for multi-input multi-output (MIMO) radar systems. The FMCW radar architecture proposed in this thesis is based on code-division technique using intra-pulse, also called intra-chirp modulation. This advanced scalable and non-complex solution, made possible by the latest achievements on direct digital synthesis for signal generation, guarantees signal integrity and compact size implementation. The proposed architecture is investigated by a thorough system analysis. A transmitter module and a receiver module for a 35 GHz imaging radar prototype are designed, fabricated and fully characterized to validate the feasibility of our novel approach for high-resolution highly-integrated MIMO front-ends.

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Section: Principle Of Fmcw Radar Techniquementioning

confidence: 99%

Millimetre-wave MIMO FMCW radar architecture towards highly integrated front-ends for high-resolution imaging applications

Mbeutcha¹

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A general differentiation-based instantaneous frequency estimator

Wang¹,

Inkol²,

Rajan³

2008

2008 24th Biennial Symposium on Communications

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Instantaneous frequency estimation, a topic of fundamental importance in signal processing, has received considerable attention in the open literature. This paper presents a new instantaneous frequency estimator based on digital differentiation concepts. The proposed estimator, referred to as the GDF estimator, is closely related to, but computationally more efficient than the Kay estimator. A slightly modified version of the GDF estimator, referred to as the MGDF estimator, is especially attractive for software-based real time demodulation of binary FSK signals.

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CTH14-1: On the Integrated Cross-Noise Component in Correlation Receivers

Niranjayan

Beaulieu

2006

IEEE Globecom 2006

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An integrated cross-noise component frequently arises in communications and in signal processing. One typical example in communication is the autocorrelation receiver. Integrated cross-noise generally appears when a noisy signal is recovered (detected) using correlation techniques with a noisy signal as the reference. The statistics of the integrated crossnoise component are analyzed in general for both the cases of uncorrelated and correlated noise terms in the integrand. The statistics are characterized theoretically by an approximate probability density function. This theoretical probability density function is verified by simulation and its convergence towards a Gaussian distribution is discussed.T 0 N (t)N (t + t d )dt where N (t) is a filtered additive Gaussian noise process with zero mean and t d (> T ) is the distance between samples N (t) and N (t + t d ) of the © 1-4244-

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Performance of the cross-correlator receiver for binary digital frequency modulation

Cited by 11 publications

References 9 publications

Millimetre-wave MIMO FMCW radar architecture towards highly integrated front-ends for high-resolution imaging applications

Millimetre-wave MIMO FMCW radar architecture towards highly integrated front-ends for high-resolution imaging applications

A general differentiation-based instantaneous frequency estimator

CTH14-1: On the Integrated Cross-Noise Component in Correlation Receivers

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