Results 81 to 90 of about 147 (116)
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Cross-spectral TDOA and FDOA estimation
SPIE Proceedings, 2014We present methods for accurately estimating and tracking instantaneous frequency and relative time delay of narrowband signal components. These methods are applied to the problem of estimating the location of an emitter from the signal(s) received by one or more receivers.
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One intelligent algorithm for estimation of TDOA and FDOA
2014 IEEE 7th Joint International Information Technology and Artificial Intelligence Conference, 2014The calculation is large to estimate the TDOA and FDOA with cross ambiguity function. Existing algorithms which are based on the ergodic theory have poor real-time performance. To solve this problem, the genetic algorithm is proposed with improvements based on the characteristics of cross ambiguity function.
Zhi yu Lu +3 more
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TDOA/FDOA Geolocation with Adaptive Extended Kalman Filter
2010In this paper, we propose a moving target tracking algorithm using the measurement signals of time difference of arrival (TDOA) and the frequency difference of arrival (FDOA). As the conventional target tracking using TDOA measurement is not accurate enough to estimate the target location, we use the TDOA and FDOA measurement signals together to ...
Hongshuo Shao, Dongkyun Kim, Kwanho You
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Mobile Emitter Geolocation and Tracking Using TDOA and FDOA Measurements
IEEE Transactions on Signal Processing, 2010This paper considers recursive tracking of one mobile emitter using a sequence of time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurement pairs obtained by one pair of sensors. We consider only a single emitter without data association issues (no missed detections or false measurements).
Darko Musicki +2 more
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Coherent TDOA/FDOA estimation method for frequency-hopping signal
2016 8th International Conference on Wireless Communications & Signal Processing (WCSP), 2016Considering the limited FDOA estimation performance for frequency-hopping signal, a coherent accumulation method is developed in this paper. The method normalizes the FDOA of every hopping pulse and then accumulates all these modified CAFs coherently.
Dexiu Hu +3 more
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Optimal Sensor Velocity Configuration for TDOA-FDOA Geolocation
IEEE Transactions on Signal Processing, 2017This paper establishes the velocity orientation requirements for dual or multiple mobile sensors to achieve optimal localization of a stationary emitter, based on TDOA and FDOA measurements. In one approach, optimal velocities are obtained by maximizing the determinant of the Fisher Information Matrix (FIM).
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Iterative source localization based on TDOA and FDOA measurements
2016 35th Chinese Control Conference (CCC), 2016In this paper, we address the source localization problem by using time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements. The localization problem is formulated as a constrained weighted least-squares (CWLS) problem.
Xiaomei Qu, Lihua Xie, Wenrong Tan
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A two-step algorithm for locating the emitter by FDOA
2023 IEEE International Conference on Consumer Electronics (ICCE), 2023Hao Xu, Qing Chang 0003, Rongling Lang
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A new TDOA/FDOA-based recursive geolocation algorithm
2010 42nd Southeastern Symposium on System Theory (SSST 2010), 2010In this paper, geolocation problem using noisy differences in time of arrival (TDOA) and frequency difference of arrival (FDOA) measurements is considered, and a sub-BLUE solution is proposed, a new TDOA/FDOA based recursive geolocation algorithm is also developed. The efficiency of the new algorithms is illustrated with simulation results.
Jiecai Luo +3 more
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Noise-Resistant Estimation Algorithm for TDOA and FDOA in Passive Emitter Localization
2019 28th Wireless and Optical Communications Conference (WOCC), 2019This paper addresses the joint time difference of arrival (TDOA) and frequency difference of arrival (FDOA) estimation problem in passive emitter localization, involving range migration during the long observation time. A noise-resistant estimation algorithm based on Keystone transform is proposed.
Zhixin Liu 0003 +5 more
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