Read e-book online Advances in Waveform-Agile Sensing for Tracking PDF

By Sandeep Prasad Sira, Antonia Papanreou-Suppappola, Darryl Morrell

ISBN-10: 159829671X

ISBN-13: 9781598296716

Fresh advances in sensor know-how and knowledge processing come up with the money for a brand new flexibility within the layout of waveforms for agile sensing. Sensors at the moment are constructed having the ability to dynamically decide upon their transmit or obtain waveforms with a view to optimize an target expense functionality. This has uncovered a brand new paradigm of vital functionality advancements in energetic sensing: dynamic waveform model to atmosphere stipulations, objective buildings, or info beneficial properties. The manuscript presents a assessment of modern advances in waveform-agile sensing for objective monitoring functions. A dynamic waveform choice and configuration scheme is built for 2 energetic sensors that music one or a number of cellular ambitions. an in depth description of 2 sequential Monte Carlo algorithms for agile monitoring are offered, including appropriate Matlab code and simulation stories, to illustrate the advantages of dynamic waveform variation. The paintings might be of curiosity not just to practitioners of radar and sonar, but additionally different purposes the place waveforms will be dynamically designed, reminiscent of communications and biosensing. desk of Contents: Waveform-Agile aim monitoring software formula / Dynamic Waveform choice with program to Narrowband and Wideband Environments / Dynamic Waveform choice for monitoring in litter / Conclusions / CRLB assessment for Gaussian Envelope GFM Chirp from the anomaly functionality / CRLB evaluate from the complicated Envelope

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19). , when both position and velocity variances contribute to the cost function. This is due to the fact that the target tracker uses both velocity and position estimates at time k − 1 to estimate the position at time k. A poor estimate of velocity thus also contributes to position errors. 8. 75 s during the tracking sequence. This is due to the fact that during this period, the target is furthest from both sensors leading to poor SNR. Thus, the estimation errors in range and range-rate are high.

In the first example, the library consists of the HFM chirp only, while in the second example, the selection of the waveform phase function is also permitted. 3 s. 14), where r0 = 500 m was the range at which 0 dB SNR was obtained. 2 with tr = 1. We define the frequency sweep to be if = |ν i (λi /2) − ν i (−λi /2)|, where ν i (t) is the instantaneous frequency, and limit it to a maximum of 2 kHz. We fix ν i (−λi /2) = fc + 2 kHz (downswept chirps) or ν i (λi /2) = fc + 2 kHz (upswept chirps). 2 for each waveform for any chosen frequency sweep.

Although this was only shown for S = 2 targets, it can be extended to an arbitrary number of targets as in [3]. 5 DYNAMIC WAVEFORM SELECTION AND CONFIGURATION The waveform selection algorithm seeks the waveform for each sensor that minimizes the sum of the predicted MSE for all targets at the next time step. The cost function to be minimized is still 50 CHAPTER 4. 4. This method of approximating the predicted cost is presented next. Let Pk−1|k−1 represent the covariance of the state estimate at time k − 1.

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Advances in Waveform-Agile Sensing for Tracking by Sandeep Prasad Sira, Antonia Papanreou-Suppappola, Darryl Morrell

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