Relevant bibliographies by topics / Antenna interference

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Antenna interference'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Antenna interference"

1

Sanad, Mohamed, and Noha Hassan. "Low-Interference Dual Resonant Antenna Configurations for Multistandard Multifunction Handsets and Portable Computers." International Journal of Antennas and Propagation 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/407973.

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Low-interference dual resonant antenna configurations are developed for multistandard multifunction mobile handsets and portable computers. Only two wideband resonant antennas can cover most of the important wireless applications in portable communication equipment. The frequency bands of the dual antenna configuration can be adjusted according to the wireless applications that are required to be covered. The bandwidth that can be covered by each antenna is about 80% without using matching or tuning circuits. Three sample dual antenna configurations with different frequency bands are presented. The interference between the low-band and high-band antennas of these three configurations is investigated, and the ways of reducing this interference are studied. The most effective factor on the interference between the low-band and high-band antennas is their relative orientations. When the low-band and high-band antennas of each configuration are perpendicular to each other, the isolation between them significantly increases. This eliminates the need for any special tools or techniques to suppress the mutual coupling between them. The new antennas have very small cross-sectional areas, and they are made of a flexible material. They do not require any additional components or ground planes. They can be used as internal, external, or partially internal and partially external antennas.
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Zhao, Qiang, Shi Rui Peng, Bing Qie Wang, and Chang Wen Zheng. "Electromagnetism Compatibility Design of an Interference Antenna." Advanced Materials Research 588-589 (November 2012): 906–11. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.906.

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Aiming at electromagnetism efficiency evaluation of large ground interference antenna is complex, the paper proposes to model and simulate it by FEKO and then the radiation pattern of the antenna can be obtained. The simulation result is conform to the fact. In view of the large power of the vice and back orientation of antenna from the simulation, adopt the method of installing electromagnetism shield wall to solve. Through the simulation shows the efficiency of electromagnetism shield wall in improving antenna’s electromagnetism compatibility.
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Dawidowicz, Karol, and Radosław Baryła. "GNSS Antenna Caused Near-Field Interference Effect in Precise Point Positioning Results." Artificial Satellites 52, no. 2 (June 1, 2017): 27–40. http://dx.doi.org/10.1515/arsa-2017-0004.

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Abstract Results of long-term static GNSS observation processing adjustment prove that the often assumed “averaging multipath effect due to extended observation periods” does not actually apply. It is instead visible a bias that falsifies the coordinate estimation. The comparisons between the height difference measured with a geometrical precise leveling and the height difference provided by GNSS clearly verify the impact of the near-field multipath effect. The aim of this paper is analysis the near-field interference effect with respect to the coordinate domain. We demonstrate that the way of antennas mounting during observation campaign (distance from nearest antennas) can cause visible changes in pseudo-kinematic precise point positioning results. GNSS measured height differences comparison revealed that bias of up to 3 mm can be noticed in Up component when some object (additional GNSS antenna) was placed in radiating near-field region of measuring antenna. Additionally, for both processing scenario (GPS and GPS/GLONASS) the scattering of results clearly increased when additional antenna crosses radiating near-field region of measuring antenna. It is especially true for big choke ring antennas. In short session (15, 30 min.) the standard deviation was about twice bigger in comparison to scenario without additional antenna. When we used typical surveying antennas (short near-field region radius) the effect is almost invisible. In this case it can be observed the standard deviation increase of about 20%. On the other hand we found that surveying antennas are generally characterized by lower accuracy than choke ring antennas. The standard deviation obtained on point with this type of antenna was bigger in all processing scenarios (in comparison to standard deviation obtained on point with choke ring antenna).
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Parshina, E. S., and K. Yu Cheredeev. "USE OF AN ACTIVE PHASED ARRAY ANTENNA IN RADAR’S SIDE LOBES CANCELLATION SYSTEM." Issues of radio electronics, no. 1 (January 20, 2019): 19–23. http://dx.doi.org/10.21778/2218-5453-2019-1-19-23.

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The paper describes an example of designing the radar’s side lobes cancellation system. It is based on the scheme of one channel interference canceler. The analysis of the antennas, which are ussually used in radar’s side lobes cancellation systems, is done, and active phased array antenna is chosen as an antenna of the radar’s side lobes cancellation system. The array pattern was formed by using antenna synthesis iterative method in order to fulfill the radar’s side lobes cancellation system’s antenna requirements. The antenna modeling results and its’ analysis are presented. The radar’s side lobes cancellation system with active phased array antenna eliminates intentional noise or impulse interference from any side lobe directions of the radar antenna.
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Caizzone, Stefano, Georg Buchner, Mihaela-Simona Circiu, Manuel Cuntz, Wahid Elmarissi, and Emilio Pérez Marcos. "A Miniaturized Multiband Antenna Array for Robust Navigation in Aerial Applications." Sensors 19, no. 10 (May 16, 2019): 2258. http://dx.doi.org/10.3390/s19102258.

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Satellite navigation is more and more important in a plethora of very different application fields, ranging from bank transactions to shipping, from autonomous driving to aerial applications, such as avionics as well as unmanned aerial vehicles (UAVs). Due to the increasing dependency on satellite navigation, the need for robust systems able to counteract unintentional or intentional interferences is growing. When considering interference-robust designs; however, the complexity increases. Top performance is obtained through the use of multi-antenna receivers capable of performing spatial nulling in the direction of the interference signals. In particular, mobile applications (aeronautics, UAVs, automotive) have a substantial interest in robust navigation, but they also have the strongest constraints on the weight and available places for installation, with the use of bigger and heavier systems posing a substantial problem. In order to overcome this limitation, the present work shows a miniaturized five element (4+1) antenna array, which operates at the L1/E1 band (with array capability), as well as at the L5/E5 band (as a single antenna). The proposed antenna array is able to fit into a 3.5-inch footprint, i.e., is compliant with the most widespread footprints for single antennas. Moreover, it is capable of multiband operation and meets the requirements of dual-frequency multi-constellation (DFMC) systems. Thanks to its extreme miniaturization and its compliance with current airborne single antenna footprints, the presented antenna array is suitable for easy integration in future aerial platforms, while enabling robustness and enhancing interference mitigation techniques using multi-antenna processing.
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Khan, Muhammad Irshad, Muhammad Anab, Muhammad Kabir Khan, Saeed Ur Rahman, and Aamir Sultan. "A Survey on Beam Steering Techniques in Printed Antennas." International Journal of Recent Contributions from Engineering, Science & IT (iJES) 9, no. 2 (June 30, 2021): 4. http://dx.doi.org/10.3991/ijes.v9i2.21691.

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<span>Beam steering antennas is essential part of various WCN (Wireless Communication Networks) such as radar and satellite communication. The increasing demand of high data rate, high SNR (Signal to Noise Ratio) and high gain, therefore pattern reconfigurable antennas are required to improve such properties. </span><span>Beam steering is the technique of changing the main lobe direction of radiation. The constructive and distractive interference are used to steer the lobe in specific direction. Beam steering is necessary in various communications such as localization, satellite, tracking system and airborne application.</span><span> Beam steering antenna decreases interference and power consumption and also increases directivity and gain. Beam steering antenna transmit and receive signals in specific direction. </span><span>Beam steering antenna decreases interference and power consumption and also increases directivity and gain. The researchers are interested to find optimal beam steering solution for single and multi-point application. </span><span>In past various techniques are used to achieve beam reconfigurable antennas. This paper presents, beam steering principle and their theory, beam steering techniques such as; Mechanical Steering, Beamforming, Switching Pin Diodes, Reflector and array antenna (Reflectarray), Parasitic Steering, Phase Shifters, Switched Beam Antennas, Metamaterial Antennas, Traveling Wave Antennas, Retro-directive Antennas, Integrated Lens Antennas (ILAS), merits and demerits and comparison among various techniques.</span>
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Choi, Hyun-Ho. "On the Degrees of Freedom of Interference Alignment for Multicell MIMO Interfering Broadcast Channels." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/827357.

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The interference alignment (IA) is a promising technique to efficiently mitigate interference and to enhance capacity of a wireless network. This paper proposes an interference alignment scheme for a cellular network withLcells andKusers under a multiple-input multiple-output (MIMO) Gaussian interfering broadcast channel (IFBC) scenario. The proposed IA scheme aligns intercell interferences (ICI) into a small dimensional subspace through a cooperative receive beamforming and cancels both the ICI and interuser interferences (IUI) simultaneously through a transmit beamforming. We characterize the feasibility condition for the proposed IA to achieve a total number of degrees of freedom (DoF) ofLKin terms of the numbers of transmit antennas and receive antennas. Then we derive the maximum number of DoF achieved by the proposed IA by finding an optimal dimension of ICI alignment subspace for a given antenna configuration. The numerical results show that the proposed IA scheme has a better DoF performance than the conventional schemes.
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Javor, V. "Electromagnetic Interference between Cranes and Broadcasting Antennas." International Journal of Antennas and Propagation 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/452962.

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An interesting phenomenon was noticed in some cases by workers operating with cranes in electromagnetic field of broadcasting antennas. They experienced electrical shock or burning pain at distances of kilometers away from powerful transmitters because cranes act as unintentional receiving antennas. The solution to this problem depends on dimensions and positioning of the crane structure, electromagnetic field strength at the site, frequency, and directional characteristic of the transmitting antenna. Electromagnetic interference between such structures is analyzed in this paper. Computational results for the induced currents and voltages in crane, treated as wire antenna problem, are determined using integrodifferential equations for the current along conductive structure, satisfying boundary condition for the electric field. Point matching method as the Method of Moments (MoM) is applied for solving these equations and polynomial approximation of the current is used. Results are presented for different crane structures and possible solutions to this problem are given.
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Mathew, Jestin John, Nitish HS, Dr Jayavrinda V. V, and Dr Raghunandan S. "Implementation of Beam Steering using Phased Array Antennas." International Journal of Innovative Science and Research Technology 5, no. 6 (July 9, 2020): 1006–8. http://dx.doi.org/10.38124/ijisrt20jun716.

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Beam steering is a phenomenon of varying the direction of the main lobe in the radiation pattern, so in radar systems it can be achieved by changing the relative phases of the antenna being implemented.But,some of the setbacks of implementing beam steering in mechanical antennas like microstrip antenna is that the directivity and, gain is low,and interference is very high.Whereas,in our project we have implemented beam steering using phased array antennas which has produced better results.So,an phased array antenna is electronically scanned antenna ,which produces a beam of radio waves that can be steered to different points based on our requirements by keeping the antenna stationary.Also,these type of antennas require less maintenance as compared to mechanical antennas
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Sun, Kai, Fei Biao Li, and Ye Qing Sun. "Capacity Analysis for Multiple Antennas Network in Spectrum Sharing System." Applied Mechanics and Materials 543-547 (March 2014): 2575–80. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.2575.

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In this paper, we consider a system where a secondary base station (SBS) with K antennas utilizes the licensed spectrum of a single primary user (PU) to send information to N secondary users (SUs). Each SU and PU is equipped with one antenna, respectively. The SBS selects only one antenna out of the K antennas by using maximum signal power to leak interference power ratio strategy (SLIR). Using asymptotic analysis, we first derive the average capacity of the best user scheme, with perfect channel state information from the SBS to the PU (interference CSI) available at the SBS. Due to limited cooperation between the SBS and the PU, perfect interference CSI is not always available at the SBS. Then, we characterize their capacity loss in the case that perfect interference CSI is not always available at the SBS.
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Dissertations / Theses on the topic "Antenna interference"

1

Zhou, Jun. "Antenna aided interference mitigation for cognitive radio." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/10676.

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Spyropoulos, Ioannis. "Interference management in multiple-antenna wireless networks." Diss., [La Jolla] : University of California, San Diego, 2009. http://wwwlib.umi.com/cr/ucsd/fullcit?p3378675.

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Thesis (Ph. D.)--University of California, San Diego, 2009.
Title from first page of PDF file (viewed Oct. 21, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 82-86).
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Anderson, Adam L. "Unitary space-time transmit diversity for multiple antenna self-interference suppression /." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd500.pdf.

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Lundin, Andreas. "Interference and Energy Conservation in Phased Antenna Arrays and Young’s Double Slit Experiment." Thesis, Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188035.

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The interest in creating and detecting electromagnetic waves carryingangular momentum in such a way that they form helical wavefronts,so called "twisted light'', has increased in recent decades.One possible way of generating such waves at radio frequenciesis to use a circular phased antenna array, where a larger relativephasing of the antenna elements corresponds to more twist of thewavefront per wavelength.However, analytical computations of the radiated power, and in turn theamountof emitted angular momentum, displays a quite rapid decrease with increasedphasing. This decrease in intensity may cause problems when alarge range of twisting is desired; for instance, as a means to encodeand transmit information. We have found that the decrease in radiatedpower does not haveany explicit relation to the beam being endowed with angular momentum.Instead, the decrease in emitted power can be explained byelectromagnetic couplingof the antenna elements in the array and that energy conservationholds, because an equal decrease in power is seen at the input of the array.We also show that a similar discrepancy is seen between the incomingand the total diffracted power in Young's classic double slit experiment,which, having only two slits, cannot provide any twisted light.The source of that discrepancy should be of a different origin.Although an explanation in terms of surface plasmons was recently givenin the literature, that is only applicable to metal screens. A general explanation of the problem therefore remains to be found.
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Chan, Chung Ph D. Massachusetts Institute of Technology. "Single antenna interference cancellation in asynchronous GSM/GPRS networks." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/36760.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.
Includes bibliographical references (p. 73-74).
In this project, we have proposed a decorrelator-based single antenna interference cancellation algorithm for the asynchronous GSM/GPRS network. The algorithm is tested according to the current SAIC/DARP performance requirement in the computer simulation, and is shown to give various gains in different test scenarios.
by Chung Chan.
M.Eng.
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Kogon, Stephen Michel. "Adaptive array processing tecniques for terrain scattered interference mitigation." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/14927.

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Seco, Granados Gonzalo. "Antenna arrays for multipath and interference mitigation in GNSS receivers." Doctoral thesis, Universitat Politècnica de Catalunya, 2000. http://hdl.handle.net/10803/6876.

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Esta tesis aborda la sincronización de una o varias réplicas de una señal conocida recibidas en un entorno con propagación multicamino e interferencias direccionales. Uno de los hilos conductores de este trabajo es la aplicación sistemática del principio de máxima verosimilitud (ML) junto con un modelo de señal en el cual las armas espaciales no tienen estructura, y en cual el ruido es Gaussiano y presenta una matriz de correlación desconocida. Esta última suposición es fundamental a la hora de obtener estimadores capaces de atenuar las señales interferentes que presentan algún tipo de estructura, y esto se consigue sin necesidad de recurrir a la estimación de ciertos parámetros de dichas señales. Por otra parte, la suposición de que las armas espaciales carecen de estructura tiene ventajas desde un punto de vista práctico, al mismo tiempo que simplifica la estimación del resto de parámetros ya que las estimaciones de estas firmas se pueden calcular de forma cerrada. Esto constituye un primer paso hacia la eliminación de las búsquedas en múltiples dimensiones, que es otro de los objetivos perseguidos en este trabajo.

En la primera parte de la tesis se deduce la solución de máxima verosimilitud para el problema general de estimación de retardos cuando el ruido tiene correlación espacial desconocida. Se demuestra que el criterio resultante para los retardos es consistente y asintóticamente eficiente, pero también es altamente no-lineal debido a la presencia del determinante de una matriz y no permite, por tanto, el uso de procedimientos sencillos de optimización. Asimismo, se demuestra y se argumenta intuitivamente que el criterio _ optimo ML se puede aproximar por una función de coste más sencilla que es asintóticamente equivalente. A diferencia de otros problemas de estimación, en el caso tratado aquí, el primer término del desarrollo de Taylor del estimador ML no conserva la eficiencia asintótica. La característica esencial de la nueva función de coste es que depende linealmente de la matriz de proyección sobre el subespacio de las señales y, por lo tanto, admite ser minimizada mediante el algoritmo IQML, que es eficiente desde el punto de vista computacional. Además, la existencia de métodos de inicialización sencillos y robustos a las interferencias, los cuales se basan en el uso de una matriz de pesos igual a la identidad y posiblemente también en el algoritmo ESPRIT, hace que el esquema de estimación propuesto pueda ser viable para un diseño práctico. La nueva función de coste se puede aplicar de la misma manera a la estimación del retardo en un canal FIR. En este caso, el algoritmo IQML se puede modificar de forma que, en cada iteración, la estimación del retardo se obtiene a partir de las raíces de un polinomio cuyo orden es igual a la longitud del canal.

El objetivo perseguido por los estimadores presentados en la segunda parte de la tesis es aprovechar una particularidad de los sistemas GNSS (Global Navigation Satellite Systems), que consiste en que la dirección de llegada de la señal directa puede ser conocida a priori. Basándose en esta información adicional y suponiendo que el array está calibrado, se propone un modelo simplificado, aunque al mismo tiempo aproximado, para la señal recibida. En este modelo todas las señales excepto la señal directa se engloban en un término con correlación espacial desconocida. Se analizan los estimadores ML del retardo y de la fase de portadora de la señal directa. El sesgo producido por las componentes multicamino al utilizar estos estimadores se reduce de forma muy importante con respecto al sesgo que sufren otros métodos. De hecho, el error cuadrático medio de los estimadores propuestos es en muchas ocasiones muy próximo o incluso inferior al mínimo error que se puede alcanzar con modelos más detallados del canal multicamino. Asimismo, se presentan dos algoritmos de estimación del retardo basados en el cálculo de las raíces de un polinomio. Se demuestra también que las estimaciones ML se pueden obtener a partir de la señal de salida de un conformador de haz híbrido. Debido a que el propio conformador depende de las estimaciones del retardo y de la amplitud de la señal directa, el uso de un algoritmo iterativo surge de forma natural. La formulación mediante el conformador híbrido proporciona una interpretación alternativa interesante de la estimación ML, y podrá ser apropiada para una realización práctica. Finalmente, se demuestra analíticamente y numéricamente que el estimador propuesto para el retardo es robusto frente a errores en el valor nominal del vector de enfoque de la señal directa, y se presenta una manera de extender el margen tolerable de errores de apuntamiento.

En la última parte de la tesis se trata la sincronización de un usuario deseado que transmite una secuencia de entrenamiento conocida en un sistema de comunicaciones DS-CDMA.
El modelo de señal utilizado agrupa el ruido, y la interferencia externa y de acceso múltiple en un término de ruido equivalente que presenta una matriz de correlación espacio-temporal desconocida. Partiendo de este modelo, se deduce un estimador del retardo que es una aproximación para un numero grande de muestras del estimador ML exacto y que es apropiado para canales con desvanecimientos lentos y noselectivos en frecuencia. El estimador propuesto es una técnica de un solo usuario y es resistente al efecto near-far. Su importancia radica en el hecho de que aprovecha la estructura de las señales en el dominio temporal y espacial, lo que contrasta con otros métodos existentes que, a pesar de utilizar un array de antenas, sólo utilizan la estructura de las señales en uno de los dos dominios. En un sistema de comunicaciones móviles, el usuario deseado está interferido por un número generalmente elevado de señales de otros usuarios y por posibles interferencias externas. En concordancia con este hecho, los resultados numéricos han mostrado que el uso conjunto de todos los grados de libertad espacio-temporales es indispensable para la correcta adquisición y seguimiento del retardo en sistemas con una carga elevada de usuarios y/o en presencia de interferencias externas.
The thesis deals with the synchronization of one or several replicas of a known signal received in a scenario with multipath propagation and directional interference. A connecting theme along this work is the systematic application of the maximum likelihood (ML) principle together with a signal model in which the spatial signatures are unstructured and the noise term is Gaussian with an unknown correlation matrix. This last assumption is key in obtaining estimators that are capable of mitigating the disturbing signals that exhibit certain structure. On the other hand, the assumption of unstructured spatial signatures is interesting from a practical standpoint and facilitates the estimation. The elimination of the multidimensional searches required by many estimators is one of the main objectives of the thesis.

In the first part of the thesis, the maximum likelihood solution to the general time delay estimation problem for the case of noise with unknown spatial correlation is derived. The resulting criterion for the delays is shown to be consistent and asymptotically efficient; but it is highly non-linear, and does not lead to simple optimization procedures. It is shown that the optimal ML criterion can be approximated by an asymptotically equivalent cost function. The cost function depends linearly on the projection matrix onto the subspace spanned by the signals, and hence it can be minimized using the IQML algorithm. The existence of simple initialization schemes based on identity weightings or ESPRIT makes the approach viable for practical implementation. The proposed cost function can be applied to the estimation of the delay in a FIR channel. In this case, each iteration of IQML comes down to rooting a polynomial.

The goal of the estimators presented in the second part of the thesis is to take advantage of one particularity of the GNSS (Global Navigation Satellite Systems) systems, such as GPS and GLONASS, consisting in that the direction-of-arrival of the line-of-sight signal may be known a priori. A simplified and approximate model for the received signal is proposed. The ML estimators of the time delay and carrier phase of the direct signal largely reduce the bias produced by multipath components. Their RMSE is in many situations very close to or even better than the best possible performance attainable with more detailed models of the multipath channel. It is also shown that the ML estimates can be obtained from the output signal of a hybrid beamformer.

In the last part of the thesis, the synchronization of a desired user transmitting a known training sequence in a DS-CDMA communication system is addressed. Multiple-access interference, external interference and noise are assumed to have unknown space-time correlation. A large-sample ML code-timing estimator that operates in frequency-nonselective, slowly fading channels is derived. It is a single-user and near-far resistant method. It is shown that the use of all spatial and temporal degrees of freedom is indispensable for the correct acquisition and tracking of the synchronization parameters in heavily loaded systems and/or in the presence of external interference.
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Amihood, Patrick. "Performance analysis of interference suppression techniques for multiple antenna systems." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3274524.

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Thesis (Ph. D.)--University of California, San Diego, 2007.
Title from first page of PDF file (viewed October 3, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 114-119).
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Geoghegan, Mark, and Louis Boucher. "Space-Time Coding Solution to the Two-Antenna Interference Problem." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/577388.

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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CA
In order to provide reliable line-of-sight communications, test aircraft typically use two transmit antennas to create top and bottom hemispherical patterns that cover the full range of possible aircraft orientations. The two transmit signals are normally generated by a single transmitter with the power being split between the two antennas. Although this configuration is straightforward and easy to implement, problems can arise due to the two signals constructively and destructively interfering with each other. This can result in the composite antenna pattern having periodic nulls with a depth and geometric spacing dependent upon the amplitude and phase differences of the two transmitted signals. This problem is usually addressed by either unevenly splitting the transmit power between the two antennas, or by using two separate transmitters at different frequencies. Unfortunately, these methods have drawbacks that require either system performance or cost trade-offs. This paper discusses the use of Space-Time Coding to eliminate this antenna interaction by transmitting modified waveforms that simultaneously allow for both full power transmission and single-channel operation. This approach effectively restores the nominal antenna performance, thereby resulting in better overall coverage and less pattern-induced dropouts. Telemetry performance results from recent flight testing are presented to validate the benefits of this approach.
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De, Lorenzo David S. "Navigation accuracy and interference rejection for GPS adaptive antenna arrays /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Books on the topic "Antenna interference"

1

Witney, J. W. An HF radar antenna system for interference cancellation. Birmingham: University of Birmingham, 1989.

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Moses, Randolph L. Effects of additional interfering signals on adaptive array performance. Columbus, Ohio: Ohio State University, ElectroScience Laboratory, 1989.

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Akima, H. A model of a shaped-beam emission pattern of a satellite antenna for interference analysis. [Washington, D.C.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1986.

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Akima, H. A model of a shaped-beam emission pattern of a satellite antenna for interference analysis. [Washington, D.C.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1986.

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Dilsavor, Ronald Louis. Analysis of modified SMI method for adaptive array weight control. Washington, DC: National Aeronautics and Space Administration, 1989.

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Elliniadis, Panagiotis. An investigation of near fields for HF shipboard antennas: Surface PATCH and wire grid modeling using the Numerical Electromagnetics Code. Monterey, Calif: Naval Postgraduate School, 1988.

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Harman, J. M. Sidelobe gain characteristics for Ku-band earth-station antennas. [Washington, D.C.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1986.

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Harman, J. M. Sidelobe gain characteristics for Ku-band earth-station antennas. [Washington, D.C.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1986.

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Harman, J. M. Sidelobe gain characteristics for Ku-band earth-station antennas. [Washington, D.C.]: U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1986.

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High-frequency electromagnetic techniques: Recent advances and applications. New York: Wiley, 1995.

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Book chapters on the topic "Antenna interference"

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Weik, Martin H. "antenna interference." In Computer Science and Communications Dictionary, 54. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_717.

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Maalouf, Khalil J., and Marwan A. Simaan. "Wideband Interference Attenuation in Sensor Arrays." In Adaptive Antenna Arrays, 65–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-05592-2_4.

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Kazemitabar, Seyed Javad. "Diversity Analysis of Multiple-Antenna Multi-User Systems." In Coping with Interference in Wireless Networks, 31–57. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-9990-7_3.

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Kwak, Jong Woo, Min Soo Sim, In-Woong Kang, Jaedon Park, and Chan-Byoung Chae. "Antenna/RF Design and Analog Self-Interference Cancellation." In Full-Duplex Communications for Future Wireless Networks, 39–60. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2969-6_2.

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Ruan, Cen, Laiding Zhao, Gengxin Zhang, and Jidong Xie. "Interference Source Location Based on Spaceborne Multi-beam Antenna." In Wireless and Satellite Systems, 251–60. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69069-4_21.

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Abdulrazak, Lway Faisal. "FSS Shielding and Antenna Discrimination as an Interference Mitigation Technique." In Coexistence of IMT-Advanced Systems for Spectrum Sharing with FSS Receivers in C-Band and Extended C-Band, 65–80. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70588-0_4.

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Wu, Jian, Long Huang, Xiaomei Tang, Baiyu Li, and Feixue Wang. "Distortionless Blind Beamformer for Interference Suppression in GNSS Antenna Array Receiver." In China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume III, 733–41. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3715-8_66.

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Sälzer, T., and D. Mottier. "Downlink Strategies Using Antenna Arrays for Interference Mitigation in Multi-Carrier CDMA." In Multi-Carrier Spread-Spectrum, 315–25. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-017-0502-8_36.

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Yang, Bo, Lianwen Meng, Yunfeng Liang, Yongsheng Zhang, and Hui Zhou. "Analysis of Radar Signals Induced by Symmetric Antenna Interference Region of Transponder." In Proceedings of the 28th Conference of Spacecraft TT&C Technology in China, 81–91. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4837-1_7.

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Miao, Sheng, Hua Zhou, and Hongji Yang. "Interference Location Using an Improved TDOA Algorithm with Antenna Array and Beamforming." In Advances in Intelligent Systems and Computing, 143–49. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8944-2_18.

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Conference papers on the topic "Antenna interference"

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Saroj, Avinash, and Nitesh Kashyap. "A Review of Various Approaches for Beam Steering in Lens Antenna Authors Avinash Saroj." In International Conference on Women Researchers in Electronics and Computing. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.114.45.

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In this paper, we will be reviewing beam steering application using lens antenna. Various approaches are available for achieving beam steering of lens antennas for different applications and some of them will be reviewed here. In radar systems, beam steering is accomplished by switching the antenna element or changing the relative phase. Beam steering has major role for 5g due to the quasi optic layer. Beam steering can also be done by varying the refractive index. In most of these papers studies, we found out that beam steering overcomes the interference, improves gain, increases directivity and also save power. Wide angle is also achieved in lens antenna.
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Zamanighomi, Mahdi, and Zhengdao Wang. "Multiple-antenna interference channel with receive antenna joint processing and real interference alignment." In 2013 IEEE International Symposium on Information Theory (ISIT). IEEE, 2013. http://dx.doi.org/10.1109/isit.2013.6620289.

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Gray, Robert, and Mike DiBenedetto. "RF Coupling Simulation Model Development for Optimal Placement of Antennas Supporting Wireless Communications Systems." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63036.

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The locomotive cab’s limited rooftop area requires that the transmitting and receiving antennas for communications be placed in close proximity to one another. Currently, no means exist to aid the railroad radio frequency (RF) engineer in placing these antennas so that mutual communications interference is minimized. The goal of this paper is to describe a method that can be used to determine optimal antenna placement in a time- and cost-effective manner. The method described below utilizes various forms of the Friis transmission equation in Monte Carlo simulations.
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Klo, Johannes Georg, and Aydin Sezgin. "Antenna selection criteria for interference alignment." In 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC 2010). IEEE, 2010. http://dx.doi.org/10.1109/pimrc.2010.5671906.

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Hanna, Salim A. "Interference rejection by adaptive antenna systems." In 2004 10th International Symposium on Antenna Technology and Applied Electromagnetics and URSI Conference. IEEE, 2004. http://dx.doi.org/10.1109/antem.2004.7860623.

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Jeon, Wonseok, and Sae-Young Chung. "Interference mitigation utilizing antenna mutual coupling." In 2015 49th Asilomar Conference on Signals, Systems and Computers. IEEE, 2015. http://dx.doi.org/10.1109/acssc.2015.7421074.

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Renuka, R., P. V. N. Murthy, Vaddi Raghavaiah, P. Sowjanya, Varia Ashok Kumar, S. S. Kumar, V. K. Hariharan, and M. Nageswara Rao. "Charging analysis of GSAT-17 patch antenna." In 2016 International Conference on ElectroMagnetic Interference & Compatibility (INCEMIC). IEEE, 2016. http://dx.doi.org/10.1109/incemic.2016.7921508.

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Batista, Rodrigo, Yuri Silva, Elvis Stancanelli, and Francisco Cavalcanti. "Interference management and antenna downtilt in multi-antenna CoMP systems." In XXX Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2012. http://dx.doi.org/10.14209/sbrt.2012.155.

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Luchaninov, A. I., E. A. Medvedev, and S. R. Owaid. "Carbon nanotubes interference." In 2013 IX International Conference on Antenna Theory and Techniques (ICATT). IEEE, 2013. http://dx.doi.org/10.1109/icatt.2013.6650829.

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Shar, Reuben. "Wideband adaptive near/field interference cancellation antenna system." In 2014 International Workshop on Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT). IEEE, 2014. http://dx.doi.org/10.1109/iwat.2014.6958688.

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