Relevant bibliographies by topics / Side lobe reduction

Contents

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

Academic literature on the topic 'Side lobe reduction'

Author: Grafiati
Published: 4 June 2025
Last updated: 15 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Side lobe reduction.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Side lobe reduction"

1

Adithya valli, N., and Dr D. Elizabath Rani. "Modified PWNLFM Signal for Side-Lobe Reduction." International Journal of Engineering & Technology 7, no. 4.20 (2018): 4. http://dx.doi.org/10.14419/ijet.v7i4.20.22110.

Full text
Abstract:
Many applications in radar systems require low range side-lobe performance which is achieved by pulse compression processing. Most used chirp signal for this processing is linear frequency modulation (LFM) signal but with a presence of first high side-lobe level. Suppression of this side-lobe requires weighting function causing the reduction in signal to noise ratio at the receiver owing to mismatch loss. Non-linear chirp signals are introduced as a solution and became most practiced signals aimed at reducing side-lobes. In this paper, an overall piece wise non-linear frequency modulation chirp signal is designed by merging two stages, one with linear function and the other with a tangent based non-linear function. Simulation results show significant reduction in the sidelobe level of autocorrelation function when NLFM is generated in this method.
APA, Harvard, Vancouver, ISO, and other styles
2

Gardner, Mick, and Michael L. Oelze. "The tradeoffs between grating lobes and larger array pitch using null subtraction imaging." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A352. http://dx.doi.org/10.1121/10.0019127.

Full text
Abstract:
Null Subtraction Imaging (NSI) is a new beamforming technique for producing B-mode images that results in high spatial resolution and low computational cost compared to other high-spatial resolution imaging techniques. Previous work has demonstrated that in addition to a narrow main lobe and low side lobes, NSI can also reduce or mitigate grating lobes. Grating lobes can appear when the wavelength of ultrasound is larger than the pitch of the array and these grating lobes can result in imaging artifacts. Lower grating lobes on a larger pitch array could allow larger linear arrays for abdominal imaging with lower element count. Experiments were conducted to quantify the tradeoff between grating lobe levels and pitch size when using NSI. NSI was able to reduce grating lobes by up to 19dB with an element pitch of five times the wavelength. The effects of the DC offset (a tunable parameter of NSI) on grating lobe reduction were also testedand found that NSI with a lower DC offset provides greater reduction in grating lobes, with up to 40dB reduction. The level of grating lobe reduction versus the depth of a target was also testedand found a slight decrease in grating lobe reduction at greater depths.
APA, Harvard, Vancouver, ISO, and other styles
3

Askeland, Bjørn, Halvor Hobæk, and Rolf Mjelde. "Semiperiodic chirp sequences reduce autocorrelation side lobes of pulsed signals." GEOPHYSICS 73, no. 3 (2008): Q19—Q27. http://dx.doi.org/10.1190/1.2903820.

Full text
Abstract:
A time-coded sequence of source pulses has been designed to allow for increased range to the target and reduced side-lobe energy with correlation. The method was designed for a new type of marine-combustion seismic source that can be fired repeatedly, but the method also can be applied to other acoustic-pulsed sources. The basic concept is that one can reduce autocorrelation side lobes by using semiperiodic sequences to concentrate much of the side-lobe noise into time intervals corresponding to the semiperiod. Signals can then be detected with better sensitivity in the time interval after the first autocorrelation peak and before the first periodic side lobe, because this interval contains only lower-level crosscorrelations between the sequence components. Compared with a source which fires pulses randomly, an 8-dB reduction of autocorrelation side lobes has been simulated for sequences of [Formula: see text] duration.
APA, Harvard, Vancouver, ISO, and other styles
4

Chukka, Anoosha, and B. T. Krishna. "Peak Side Lobe Reduction analysis of NLFM and Improved NLFM Radar signal." AIUB Journal of Science and Engineering (AJSE) 21, no. 2 (2022): 125–31. http://dx.doi.org/10.53799/ajse.v21i2.440.

Full text
Abstract:
Signal design is an important component for good performance of radar systems. Here, the problem of determining a good radar signal with the objective of minimizing autocorrelation sidelobes is addressed. Linear Frequency Modulated signal (LFM) is frequently used pulse compression waveform. But using LFM makes it necessary to use weighting techniques in order to reduce the side lobes which considerably decrease the SNR. At the radar receiver, the LFM signal results in first side lobe of -13dB corresponding to the main lobe. This may reduce the resultant SNR usually by 1 or 2dB. In this paper, an attempt is done to design a radar signal to attain low autocorrelation Peak Side Lobe Ratio (PSLR) which exhibits high SNR and high range resolution. In order to maintain high SNR and to get suppressed side lobes of the signal, one can use Non-Linear Frequency Modulation (NLFM). A NLFM signal is designed for different time sweeps called as Improved NLFM. In Improved NLFM the total time sweep and bandwidth are divided into Two Stage and Tri-Stage sweeps NLFM. The quality of the overall best radar signal is assessed through the parameter PSLR for different values of BT. From this analysis, it is found that the tri stage NLFM gives the low PSLR up to -17.62dB. Simulation results shows the reduction in the sidelobe level from LFM to NLFM and in Improved two and Tri-Stage NLFM.
APA, Harvard, Vancouver, ISO, and other styles
5

Kavitha, Chandu. "Optimization of two-stage NLFM signal using Heuristic approach." Indian Journal of Science and Technology 13, no. 44 (2020): 4465–73. http://dx.doi.org/10.17485/ijst/v13i44.1841.

Full text
Abstract:
Background/Objectives: The design of appropriate Non-Linear Frequency Modulation (NLFM) signals continues to be the focus of research in radar pulse compression theory for sidelobe reduction. This study focuses on a heuristic design and optimization algorithm to optimize the side lobe values of the NLFM signal designed using two-piece wise linear frequency modulation (LFM) functions. Methods: 1) Heuristic search identifies the optimum B1, T1, and B2, T2, which yield the lowest sidelobe value of the designed function.2) Compute all the side lobe values of the designed NLFM signal using an algorithm developed in Python scripting language. To plot a complete contour map for all the calculated side lobe values, which helps identify the associated variations in the range of side lobe values. Finally, optimize the side lobe values keeping the main lobe width and time-bandwidth (BT) product unchanged by designing a dynamic optimization algorithm. Findings: The algorithm developed considered all side lobe levels after the main lobe for optimization. The focus is mainly on the peak sidelobe ratio (PSLR) value without affecting the other parameters. The results demonstrate that the achieved side lobes exhibit their desired levels. Novelty: The method is useful in all types of hardware associated with weather radar applications to military solutions. The technique can be extended to other multistage signals consisting of piecewise linear Segments. Keywords: Contour; LFM; NLFM; optimization; PSLR
APA, Harvard, Vancouver, ISO, and other styles
6

Chandu, Kavitha, Adithya Valli Nettem, and Dasari Madhavaprasad. "Optimization of two-stage NLFM signal using Heuristic approach." Indian Journal of Science and Technology 13, no. 44 (2020): 4465–73. https://doi.org/10.17485/IJST/v13i44.1841.

Full text
Abstract:
Abstract <strong>Background/Objectives:</strong>&nbsp;The design of appropriate Non-Linear Frequency Modulation (NLFM) signals continues to be the focus of research in radar pulse compression theory for sidelobe reduction. This study focuses on a heuristic design and optimization algorithm to optimize the side lobe values of the NLFM signal designed using two-piece wise linear frequency modulation (LFM) functions.&nbsp;<strong>Methods:</strong>&nbsp;1) Heuristic search identifies the optimum B1, T1, and B2, T2, which yield the lowest sidelobe value of the designed function.2) Compute all the side lobe values of the designed NLFM signal using an algorithm developed in Python scripting language. To plot a complete contour map for all the calculated side lobe values, which helps identify the associated variations in the range of side lobe values. Finally, optimize the side lobe values keeping the main lobe width and time-bandwidth (BT) product unchanged by designing a dynamic optimization algorithm.&nbsp;<strong>Findings:</strong>&nbsp;The algorithm developed considered all side lobe levels after the main lobe for optimization. The focus is mainly on the peak sidelobe ratio (PSLR) value without affecting the other parameters. The results demonstrate that the achieved side lobes exhibit their desired levels.&nbsp;<strong>Novelty:</strong>&nbsp;The method is useful in all types of hardware associated with weather radar applications to military solutions. The technique can be extended to other multistage signals consisting of piecewise linear Segments. <strong>Keywords:</strong> Contour; LFM; NLFM; optimization; PSLR
APA, Harvard, Vancouver, ISO, and other styles
7

Cheney, Margaret, and Ivars Kirsteins. "Reducing ambiguities in single-hydrophone matched-field processing by exploiting source motion." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A298. http://dx.doi.org/10.1121/10.0018922.

Full text
Abstract:
Matched-field processing for localizing an underwater acoustic source in range and depth from power-spectrum measurements obtained at a single hydrophone receiver often suffers from high side-lobes and ambiguities when the signal is narrowband or signal bandwidth is small. In this paper we review how source motion can be utilized to reduce side-lobes in depth and range via an incoherent synthetic-aperture-like approach and explain the mechanisms responsible for side-lobe reduction relative to the height of the main-lobe by using a normal-mode expansion for the pressure field. We also derive an approximation for the depth main-lobe width when the true source range is known for the ideal rigid-waveguide case. Numerical results are presented corroborating the analytical analysis along with some matched-field localization ambiguity surface examples for (a) an ideal shallow-water waveguide with a pressure-release top boundary and a rigid bottom boundary and (b) a more realistic shallow-water Pekeris environment, to demonstrate how side-lobes and ambiguities are reduced when source motion is exploited in the matched-field processing.
APA, Harvard, Vancouver, ISO, and other styles
8

Ifeoma, B. Asianuba. "Side Lobe Reduction in Linear Array Antenna using Numerical Computation Approach." European Journal of Advances in Engineering and Technology 6, no. 4 (2019): 29–35. https://doi.org/10.5281/zenodo.10687581.

Full text
Abstract:
<strong>ABSTRACT</strong> Large amount of energy is saved when a transmitting antenna propagates its field radiations painstakingly in the required direction of propagation. For this reason, reduction in side lobe radiation is essential to avoid degrading the total power and efficiency of the radiating structure. In this paper, a numerical approach is adopted other than the well known stochastic approach to reduce side lobe radiations in linear array antennas. This choice is as a result of the short design cycle of the numerical solution for antenna field problems, full exploration of design space and provision of large physical insights on the design output. The parameters of the array antenna are deployed in the reduction of the side lobe radiations. These include; non-uniform inter-element spacing, non-uniform excitation amplitude and varying number of antenna elements. Radiation patterns for linear array antenna with non-uniform characteristics are generated from the simulation result. The patterns with the least side lobe and beam width are determined. This outcome ensures signals are not transmitted in undesirable directions and efficient communication process can be guaranteed.&nbsp;
APA, Harvard, Vancouver, ISO, and other styles
9

Mohammed, Rasha Bashar, and Jafar R. Mohammed. "Side Lobe Reduction Using Non-Uniform Linear Phased Arrays." IOP Conference Series: Materials Science and Engineering 1152, no. 1 (2021): 012014. http://dx.doi.org/10.1088/1757-899x/1152/1/012014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Mohammed, Jafar Ramadhan. "An optimum side-lobe reduction method with weight perturbation." Journal of Computational Electronics 18, no. 2 (2019): 705–11. http://dx.doi.org/10.1007/s10825-019-01323-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Side lobe reduction"

1

Ahmed, Mamun. "Adaptive Sub band GSC Beam forming using Linear Microphone-Array for Noise Reduction/Speech Enhancement." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-6174.

Full text
Abstract:
This project presents the description, design and the implementation of a 4-channel microphone array that is an adaptive sub-band generalized side lobe canceller (GSC) beam former uses for video conferencing, hands-free telephony etc, in a noisy environment for speech enhancement as well as noise suppression. The side lobe canceller evaluated with both Least Mean Square (LMS) and Normalized Least Mean Square (NLMS) adaptation. A testing structure is presented; which involves a linear 4-microphone array connected to collect the data. Tests were done using one target signal source and one noise source. In each microphone’s, data were collected via fractional time delay filtering then it is divided into sub-bands and applied GSC to each of the subsequent sub-bands. The overall Signal to Noise Ratio (SNR) improvement is determined from the main signal and noise input and output powers, with signal-only and noise-only as the input to the GSC. The NLMS algorithm significantly improves the speech quality with noise suppression levels up to 13 dB while LMS algorithm is giving up to 10 dB. All of the processing for this thesis is implemented on a computer using MATLAB and validated by considering different SNR measure under various types of blocking matrix, different step sizes, different noise locations and variable SNR with noise.<br>Mamun Ahmed E-mail: mamuncse99cuet@yahoo.com
APA, Harvard, Vancouver, ISO, and other styles
2

Dieulangard, Anthony. "Nouvelles configurations d'interaction pour l'optimisation conjointe des performances des composants acouto-optiques." Thesis, Valenciennes, 2014. http://www.theses.fr/2014VALE0027/document.

Full text
Abstract:
Une description des différentes configurations d’interaction ayant lieu dans les matériaux usuellement employés dans le domaine acousto-optique est proposée. Un exemple d’application illustre les caractéristiques déterminantes propres à chaque fonction que permet l’interaction acousto-optique, à savoir la modulation, la déviation, le décalage en fréquence et le filtrage d’un faisceau optique. Cette thèse est plus particulièrement consacrée aux interactions acousto-optiques anisotropes dans le cristal de Paratellurite, matériau majoritairement employé pour les applications de déflexion et de filtrage de par ses qualités photo-élastiques remarquables et son large domaine de transparence optique. Ces propriétés optiques, acoustiques et acousto-optiques sont décrites en détail. Nous nous intéressons plus particulièrement aux caractéristiques de l’interaction NPM (Narrow Phase Mismatch) et TPM (Tangent Phase Mismatch), respectivement employées pour le filtrage et la déflexion. Ceci nous conduit à l’étude de la bande passante spectrale d’un déflecteur et de sa potentielle application en tant que réseau de diffraction à bande passante et périodicité spatiale modulable. Ensuite nous proposons la mise en cascade d’un déflecteur et d’un filtre dans le but de concevoir un décaleur de fréquence variable à faible décalage. Enfin, nous proposons une configuration originale pour répondre aux contraintes d’utilisation rencontrées avec l’interaction NPM pour les applications de filtrage. La conception et la réalisation d’un composant multiélectrodes à interaction double est alors présentée dans la gamme spectrale [400; 650 nm]. La configuration proposée permet à la fois de réduire de 50% l’intensité des lobes secondaires tout en homogénéisant la bande passante optique du filtre sur sa bande spectrale de travail<br>The different configurations of acousto-optic interactions taking place in usual employed materials are presented. For each function (modulation, deflection, shifting and filtering), an exemple of application highlights the decisive characteristics of the component. This thesis is particularly devoted to the anisotropic interactions occuring in Paratellurite crystal. Such material is widely used for filtering and deflection applications due to its high figure of merit and also for its large optical transparency domain, from Ultra-Violet to Infra-Red. Optical, acoustical and acoustooptical properties of Paratellurite cristal are detailed. More precisely, we are interested in anisotropic interactions, in particular NPM (Narrow Phase Mismatch) and TPM (Tangent Phase Mismatch), respectively employed for Acousto-Optic Tunable Filters (AOTF) and Acousto-Optic Deflectors (AOD). This leads to the study of the optical bandwidth of a deflector with a potential application as a tunable transmissive grating beam splitter for multiple laser line separation. Then, we propose to cascade an AOTF with an AOD in order to get a wide bandwidth tunable optical low frequency shifter. Finally, we present the design and fabrication of a multi-transducer component based on dual anisotropic interaction in the visble spectral range, from 400 to 650 nm. A significative reduction of sides lobes is observed (-50%) with an homogenisation of the optical bandwidth of the filter on its spectral working range
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Side lobe reduction"

1

Lavanya, Y. Laxmi, and G. Sasibhushana Rao. "Comparison of Various Algorithms for Side Lobe Level Reduction in 5G Antenna Arrays." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3828-5_48.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Parmar, Poonam, Rahul Dubey, and Karuna Markam. "Improvement in Side Lobe Reduction in FIR Filter Design Using Proposed Hybrid Blackman Window." In Intelligent Computing Applications for Sustainable Real-World Systems. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44758-8_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Yang, Ruliang, Haiying Li, Shiqiang Li, et al. "SAR Super-Resolution Methods Based on Spectral Bandwidth Extrapolation and Adaptive Side Lobe Reduction." In High-Resolution Microwave Imaging. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7138-6_16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chakravorty, Pragnan, and Durbadal Mandal. "PSO in Concentric Circular Arrays for Side Lobe Reduction with Symmetric Relocation Boundary Condition." In Intelligent Computing and Applications. Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2268-2_51.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bera, Rajesh, Durbadal Mandal, Rajib Kar, and Sakti Prasad Ghoshal. "Application of Particle Swarm Optimization Technique in Hexagonal and Concentric Hexagonal Antenna Array for Side Lobe Level Reduction." In Intelligent Computing and Applications. Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2268-2_36.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mukherjee, Prarthana, Ankita Hajra, Sauro Ghosal, Soumyo Chatterjee, and Sayan Chatterjee. "Side Lobe Reduction and Beamwidth Control of Amplitude Taper Beam Steered Linear Array Using Tschebyscheff Polynomial and Particle Swarm Optimization." In Smart Innovation, Systems and Technologies. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07353-8_76.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Azkiya, Nailah, and Untung Yuwono. "Superstructure of Discourse and Cohesion in Narratives Spoken by People with Alzheimer’s." In Engaging Indonesia. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-2336-2_15.

Full text
Abstract:
AbstractAlzheimer’s is part of dementia, a symptom of memory loss commonly known as senility. Alzheimer’s will initially distract memory, then disrupt language skills. The disruption in language skills is mainly due to reduced memory of the language form and vocabulary. In addition, memory disorders also affect the reduction in language skills because people with Alzheimer’s lose things they have remembered and understood to the point of being unable to express their thoughts in the language form. This study analyzes the superstructure and cohesion in narratives spoken by people with Alzheimer's. The purpose of this study is to explain the narrative superstructure and cohesive device used by people with Alzheimer’s in their narratives. This research uses a qualitative method. The subjects in this study were elderlies with Alzheimer’s who live in a nursing home in East Jakarta. It was a large government-owned social institution that accommodated large numbers of patients from various backgrounds. The data were collected by conducting open interviews to elderlies with Alzheimer’s in several levels of seriousness based on the results from the Mini Mental Status Exam (MMSE) test; namely, those with mild Alzheimer’s and serious Alzheimer’s. Those who match the criteria were randomly chosen, resulting in three selected respondents with Alzheimer’s as the samples. Then they were given two questions as the trigger for their stories, which are, “What was the most happily experience in your life?” and “What was the most sinister experience in your life?” It is found that narratives produced by people with mild Alzheimer’s have a complete narrative structure, which are orientation, complication, evaluation, resolution, and coda. On the other side, people with serious Alzheimer’s could not produce narratives without guidance. Narratives about unpleasant experiences are more remembered than narratives about pleasant experiences. In addition, the cohesion that is commonly used by people with Alzheimer’s are references, substitutions, and conjunctions. The research result shows the aspects of language that can be maintaned by people with mild Alzheimer’s. It gives an implication in how medical practioners handle the language maintenance of the people with mild Alzheimer’s. The decreased ability of mild Alzheimer’s to narrate and use cohesive device can signalize the worsening of Alzheimer’s. Furthermore, by continuously encouraging people with Alzheimer’s to tell memorable things in their lives, it would be possible to slow down the degeneration process as they are invited to recall their memories perpetually.
APA, Harvard, Vancouver, ISO, and other styles
8

Kingsley Eyiogwu, Onu. "The Issue of Sidelobe Level in Antenna Array: The Challenge and the Possible Solution." In Antenna Arrays [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106344.

Full text
Abstract:
This work looked at the issue of sidelobe level associated with antenna array and the challenge, providing a way that the issue and challenge can be overcome. Different authors have used different techniques in trying to find solutions to the problems in antenna array. This research work considered enhanced firefly algorithm and genetic algorithm as techniques or methods in addressing the issues in antenna array, such as side lobe level reduction. The work has shown that enhanced firefly algorithm (EFA) performs better than genetic algorithm (GA) in optimizing side lobe level of antenna array without any serious effect on the beam width. The best side lobe level obtained while using enhanced firefly was (−32.5 dB) compared to the value of (−20.0 dB) obtained with genetic algorithm. It was also found that tilting beam towards the direction of end fire, genetic algorithm optimization technique can be used to reasonably reduce the level of side lobe in array antennas. It was also found from this research work that reducing the number of active elements in an antenna array by way of turning OFF some elements can be used to improve performance of the array.
APA, Harvard, Vancouver, ISO, and other styles
9

Valli, N. Adithya, D. Elizabath Rani, and C. Kavitha. "Study on Conventional vs. Convolutional Windows for Reduction of Side Lobes." In Recent Developments in Engineering Research Vol. 12. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/rder/v12/5076d.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Roques, Bernard P., Christiane Durieux, Mariano Ruiz-Gayo, et al. "In vitro and in vivo characterization of CCKB receptors and behavioural responses induced by mesolimbic CCK receptor stimulation with compounds designed to recognize CCKA or CCKB sites selectively." In Multiple Cholecystokinin Receptors in the CNS. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198577560.003.0006.

Full text
Abstract:
Abstract CCK-8, the sulphated octapeptide fragment of CCK, has been found in specific neuronal cells where it is concentrated in synaptic vesicles and released by a calcium-dependent mechanism to interact with a similar nanomolar affinity with at least two binding sites designated CCK8 (or central site) and CCKA (or peripheral site) (Vanderhaeghen and Crawley 1985; Chapter 5 of this volume). The former site resembles the gastrin receptor and the latter appears to be similar to the pancreatic receptor. High concentrations of CCK-8 have been found in brain regions such as the limbic lobe (hippocampus, amygdala, and temporal cortex) and the mesocorticolimbic pathway (ventral tegmental area (VTA), nucleus accumbens, and frontal cortex), raising interesting questions as to the possible role of this peptide in psychiatric disorders including schizophrenia, the etiopathology of which has been related to dopamine (DA) over activity (Chapters 36 and 37 of this volume). Schizophrenic patients with negative symptoms (poverty of speech and affective disinterest) are characterized by a reduction in hippocampal size associated with lower amounts of CCK-8 and CCK binding sites in the hippocampus and amygdala (Ferrier et al. 1985). Furthermore, reduced levels of CCK have been found in the cerebrospinal fluid of schizophrenics (Verbanck et al. 1983). Although there is some controversy about the reported antipsychotic action of the CCK analogue ceruletide (Chapter 36 of this volume), a direct CCK abnormality in the limbic system in which cognition, attention, and emotion are integrated was reported to be one of the possible biochemical bases of type II schizophrenia (Vanderhaeghen and Crawley 1985).
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Side lobe reduction"

1

Kumar, Satish, Gopi Ram, Durbadal Mandal, and Rajib Kar. "Side Lobe Reduction of Time Modulated Elliptical Antenna Array Using GA and PSO Algorithm." In 2024 IEEE Space, Aerospace and Defence Conference (SPACE). IEEE, 2024. http://dx.doi.org/10.1109/space63117.2024.10668271.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kumar, Satish, Gopi Ram, Durbadal Mandal, and Rajib Kar. "Optimization of Side Lobe and Side Band Reduction in Time-Modulated Elliptical Antenna Arrays Using CRPSO and NPSO Algorithms." In 2024 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON). IEEE, 2024. https://doi.org/10.1109/mapcon61407.2024.10923318.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Safaai-Jazi, Ahmad, and Warren L. Stutzman. "Side lobe reduction in uniformly excited linear arrays." In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2015. http://dx.doi.org/10.1109/aps.2015.7305613.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Balegh, Hadi, Bijan Abbasi Arand, and Leila Yousefi. "Side lobe level reduction in horn antennas using graphene." In 2016 24th Iranian Conference on Electrical Engineering (ICEE). IEEE, 2016. http://dx.doi.org/10.1109/iraniancee.2016.7585838.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Allayioti, Marion, and James R. Kelly. "Side lobe level reduction for beam steerable antenna design." In 2016 10th European Conference on Antennas and Propagation (EuCAP). IEEE, 2016. http://dx.doi.org/10.1109/eucap.2016.7481316.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Pires de Souza, Bruna Dias, Antonio Elcio Ferreira Junior, Marcelo Luis Francisco Abbade, and Ivan Aldaya. "Side-lobe level reduction in 1D photonic array antennas." In 2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC). IEEE, 2018. http://dx.doi.org/10.1109/sbfoton-iopc.2018.8610882.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mini, P. R., S. Mridula, and P. Mohanan. "An approach for side lobe reduction in conventional beamformers." In 2012 Annual IEEE India Conference (INDICON). IEEE, 2012. http://dx.doi.org/10.1109/indcon.2012.6420725.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sarker, Md Roman, Md Maynul Islam, Md Tanjilul Alam, and Mohammed Hossam-E-Haider. "Side lobe level reduction in antenna array using weighting function." In 2014 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT). IEEE, 2014. http://dx.doi.org/10.1109/iceeict.2014.6919117.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Xue, Li, Jiao Zhang, Yusheng Pan, and Yufeng Liu. "Particle Swarm Optimization for Side Lobe Reduction of Antenna Array." In 2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC). IEEE, 2019. http://dx.doi.org/10.1109/csqrwc.2019.8799242.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ye, Jianfeng, Weizheng Pang, and Jun Zhang. "Immune algorithm in array-pattern synthesis with side lobe reduction." In 2008 International Conference On Microwave and Millimeter Wave Technology. IEEE, 2008. http://dx.doi.org/10.1109/icmmt.2008.4540624.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Side lobe reduction' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography