Download e-book for kindle: Advances in Direction-of-Arrival Estimation (Artech House by Sathish Chandran

By Sathish Chandran

ISBN-10: 1596930047

ISBN-13: 9781596930049

As the path to objectives is generally expressed through the course of arrival (DOA) of transmitted indications, deciding on the course of arrival (DOA) of any sign is of serious value to electric engineers engaged on either civilian and tactical purposes in radar and communications. This state of the art source provides the most recent advancements in DOA estimation from the best researchers within the box. the 1st compiled publication within the box, this in-depth reference covers a variety of key subject matters, from DOA estimation tools and resource localization difficulties, to precise purposes of DOA estimation and experimental setup and effects. Practitioners notice how DOA estimation is without doubt one of the major practical specifications for direction-finding clever antennas in subsequent iteration cellular and stealth communique platforms. The e-book additionally serves as a good textual content for graduate scholars and researchers learning during this region.

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Additional resources for Advances in Direction-of-Arrival Estimation (Artech House Radar Library)

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Nix, ‘‘Problems with Direction Finding Using Linear Array with Element Spacing More Than Half Wavelength,’’ First Annual COST 273 Workshop, Expoo, Finland, May 29–30, 2002, pp. 1–6. Moffet, A. , ‘‘Minimum-Redundancy Linear Arrays,’’ IEEE Trans. on Antennas and Propagation Society, Vol. 16, No. 2, March 1968, pp. 172–175. Mailloux, R. , Norwood, MA: Artech House, 2005. Chan, Y. , ‘‘Direction Finding with a Four-Element Adcock-Butler Matrix Antenna Array,’’ IEEE Trans. on Aerospace and Electronic Systems, Vol.

Kailath, ‘‘Azimuth/Elevation Direction Finding Using Regular Array Geometries,’’ IEEE Trans. on Aerospace and Electronic Systems, Vol. 29, No. 1, January 1993, pp. 145–156. Liu, T. , and J. M. Mendel, ‘‘Azimuth and Elevation Direction Finding Using Arbitrary Array Geometries,’’ IEEE Trans. on Antennas and Propagation Society, Vol. 46, No. 7, July 1998, pp. 2061–2065. , and B. Friedlander, ‘‘Direction Finding with Time-Varying Arrays,’’ IEEE Trans. on Antennas and Propagation Society, Vol. 43, No.

The goal of the Butler matrix is to place predefined, linear phase progressions between elements of a linear array. The Butler matrix is a series of 3-dB quadrature hybrid couplers and phase shifting/delay elements. The 3-dB quadrature hybrid coupler is a device with two inputs (I1, I2) and two outputs (O1, O2). A signal incident to I1 will be split equally between the outputs, O1 and O2. However, the output signals will have a 90° phase shift between them. The phase shifting/delay may be an actual phase shifting device, or, if the matrix is on a printed circuit board, it may be a section of line that has an electrical length of 45° in phase.

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Advances in Direction-of-Arrival Estimation (Artech House Radar Library) by Sathish Chandran

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