Journal ArticleDOI
Passive source localization employing intersecting spherical surfaces from time-of-arrival differences
H. C. Schau,A. Robinson +1 more
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TLDR
A closed-form solution for source location is presented given time-of-arrival difference measurements when the distance from the source to any arbitrary reference is unknown.Abstract:
Problems associated with the use of intersecting hyperboloids for passive source localization from time-of-arrival difference signals are discussed. A closed-form solution for source location is presented given time-of-arrival difference measurements when the distance from the source to any arbitrary reference is unknown.read more
Citations
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Journal ArticleDOI
A simple and efficient estimator for hyperbolic location
Yiu-Tong Chan,K.C. Ho +1 more
TL;DR: An effective technique in locating a source based on intersections of hyperbolic curves defined by the time differences of arrival of a signal received at a number of sensors is proposed and is shown to attain the Cramer-Rao lower bound near the small error region.
Journal ArticleDOI
Closed-form least-squares source location estimation from range-difference measurements
Julius O. Smith,Jonathan S. Abel +1 more
TL;DR: Three noniterative techniques are presented for localizing a single source given a set of noisy range-difference measurements, and in one case the maximum likelihood bearing estimate is approached.
Book
UWB theory and applications
TL;DR: This paper presents UWB Channel Models, a Hierarchical Model for Modulation Schemes of Receiver Structures, and Integrated Circuit Topologies, which describe the construction of receiver structures and the role of antennas in this system.
Journal ArticleDOI
Maximum-likelihood source localization and unknown sensor location estimation for wideband signals in the near-field
TL;DR: The proposed maximum-likelihood location estimator for wideband sources in the near field of the sensor array is derived and is shown to yield superior performance over other suboptimal techniques, including the wideband MUSIC and the two-step least-squares methods.
Journal ArticleDOI
An accurate algebraic solution for moving source location using TDOA and FDOA measurements
TL;DR: The estimated accuracy of the source position and velocity is shown to achieve the Crame/spl acute/r-Rao lower bound for Gaussian TDOA and FDOA noise at moderate noise level before the thresholding effect occurs.
References
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Journal ArticleDOI
Time delay estimation for passive sonar signal processing
TL;DR: In this article, an overview of applied research in passive sonar signal processing estimation techniques for naval systems is presented, where the authors present a discussion of this problem in terms of estimating the position and velocity of a moving acoustic source.
Journal ArticleDOI
Time delay estimation using phase data
TL;DR: In this paper, the estimation of time delays between two received signals using phase measurements is discussed and the accuracy of such estimates is detailed for the ideal case of statistically independent noise and no scattering at the receiver locations, it is shown that phase data regression lines yield time delay estimates with the same accuracy as other optimal time delay estimation procedures.
Journal ArticleDOI
An in-place, in-order prime factor FFT algorithm
C.S. Burrus,P. Eschenbacher +1 more
TL;DR: A Fortran program that calculates the discrete Fourier transform using a prime factor algorithm is presented that is faster than both the Cooley-Tukey algorithm and the Winograd nested algorithm.
Journal ArticleDOI
A design technique for circularly symmetric low-pass filters
TL;DR: In this paper, a spectral transformation from the one-dimensional discrete domain into the 2D discrete domain is proposed, which retains the advantages of the original technique while permitting design entirely in the discrete domain, yielding filters with better stability characteristics, and facilitating frequency response optimization via nonlinear programming.
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Closed-form least-squares source location estimation from range-difference measurements
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