The use of track-before-detect in pulse-Doppler radar

Advanced sensing solutions are central in the realization of energy-efficient lighting systems. This paper presents an ultrasonic array sensor for localized presence sensing in indoor environments. Localized presence sensing refers to the determination of presence and locations of occupants. Our proposed sensing solution comprises of a single transmitter and a linear array of receiving elements. In order to meet presence sensing requirements in indoor office scenarios, a pulsed sinusoid transmitter waveform and receiver processing algorithms for location estimation are designed. The signals at the receiver array are processed to obtain range and direction-of-arrival estimates. These location estimates are improved using a tracking algorithm based on occupant movement models and by mitigating multipath effects. The performance of the proposed presence sensing solution is shown in multi-occupant office environments.Index Terms-Direction-of-arrival estimation, indoor lighting systems, moving target indicator, presence sensing, tracking algorithms, ultrasonic array sensor.

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“…For target tracking, we introduce a score vector as done in [22] and [23]. This score vector represents the past history of the targets.…”

Section: Target Trackingmentioning

confidence: 99%

Ultrasonic Arrays for Localized Presence Sensing

Caicedo

Pandharipande

2012

IEEE Sensors J.

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“…The integration is transformed to an optimal estimation of the physically admissible trajectory with maximal multi‐frame test statistic. The DP‐based TBD (DP‐TBD) can detect targets of arbitrary motion forms, so it has been widely applied to kinds of sensors [7–10].…”

Section: Introductionmentioning

confidence: 99%

Dynamic programming track‐before‐detect algorithm for radar target detection based on polynomial time series prediction

Zheng¹,

Wang²,

Meng³

2016

IET Radar, Sonar & Navigation

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“…TBD-based procedures jointly process several consecutive pings in a batch algorithm and, relying on target kinematics or, simply, exploiting the physically admissible target transitions, declare the presence of a target and, eventually, estimate its track [2][3][4][5][6][7]. TBD algorithms are typically fed by unthresholded data or thresholded data with significantly lower thresholds than the ones used by conventional trackers.…”

Section: Introductionmentioning

confidence: 99%

Batch tracking algorithm for multistatic sonars

Ehlers

Orlando

Ricci

2012

IET Radar, Sonar &Amp; Navigation

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In this study, the authors propose a new tracking algorithm for multistatic sonar systems, where the measurements collected by different sensors are sent to a fusion centre. The proposed algorithm relies on the main idea behind the trackbefore-detect paradigm, which consists of processing data from several consecutive pings, and estimates target positions by maximising the likelihood function of the available measurements. The authors assume that one manoeuvring target is present within the surveillance area. The preliminary performance assessment, carried out on simulated scenarios, shows that the proposed algorithm has acceptable performance also when the probability of detection per sensor is low (in the order of 0.3) and measurement errors are significant.

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The use of track-before-detect in pulse-Doppler radar

Cited by 32 publications

References 3 publications

Ultrasonic Arrays for Localized Presence Sensing

Ultrasonic Arrays for Localized Presence Sensing

Dynamic programming track‐before‐detect algorithm for radar target detection based on polynomial time series prediction

Batch tracking algorithm for multistatic sonars

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