Results 131 to 140 of about 993 (170)

Array antenna with series-fed configuration providing high radiation performances for automotive radar in IoT applications. [PDF]

Sci Rep
Zakeri H, Parvaneh M, Moradi G, Alibakhshikenari M, Virdee BS, Dalarsson M.   +5 more
europepmc   +1 more source

Flexible ultrasound array for subcortical brain stimulation in humans: a simulation study. [PDF]

NPJ Acoust
Huo H, DiSpirito A, Wang N, Li C, Moon S, Qiu C, Yin K, Wu H, Sun B, Horstmeyer R, Feng W, Jiang X, Ni X, Yao J.   +13 more
europepmc   +1 more source

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Binary Sequences With Small Peak Sidelobe Level

IEEE Transactions on Information Theory, 2012
A binary sequence of length n is an n-tuple with elements in {-1,1} and its peak sidelobe level is the largest absolute value of its aperiodic autocorrelations at nonzero shifts. A classical problem is to find binary sequences whose peak sidelobe level is small compared to the length of the sequence.
Kai-Uwe Schmidt
exaly   +2 more sources

Longest binary pulse compression codes with given peak sidelobe levels

Proceedings of the IEEE, 1986
For peak sidelobe levels of 3, 4, and 5, three new binary pulse compression codes are presented of lengths 51, 69, and 88, respectively.
A. M. Kerdock, R. Mayer, D. Bass
exaly   +2 more sources

SLOPE: A monotonic algorithm to design sequences with good autocorrelation properties by minimizing the peak sidelobe level

Digital Signal Processing, 2021
Abstract Sequences with low autocorrelation sidelobes has applications in various fields like wireless communications, radar, sonar, cryptography to name a few. In this paper, we propose an approach to construct sequences, in particular unimodular sequences, by directly minimizing the peak sidelobe level (PSL) metric.
Mohammad Alaee-Kerahroodi, R Jyothi, Prabhu Babu   +2 more
exaly   +3 more sources

Bounding the Peak Sidelobe Level of Binary Sequences of All Lengths

IEEE Transactions on Information Theory, 2016
Improving upon 2010 results of Alon et al. , it was shown in 2014 by Schmidt that asymptotically, almost all binary sequences of length $n$ have peak sidelobe level close to $({2n\log n})^{1/2}\vphantom {\sum ^{R^{R}}}$ . One specific result of Alon et al.
exaly   +2 more sources

Peak Sidelobe Level Gumbel Distribution of Antenna Arrays With Random Phase Centers

IEEE Transactions on Antennas and Propagation, 2019
The maximum value of an antenna array’s sidelobe beampattern, or radiation pattern in the power domain, is an important parameter determining its performance. In this paper, when array antenna elements have random phase centers, we approximate the maximum sidelobe value, or peak sidelobe level, as a Gumbel distribution using the extreme value theory ...
Vahid Tarokh, Siddhartha Krishnamurthy, Christ Richmond   +2 more
exaly   +2 more sources

Best-known autocorrelation peak sidelobe levels for binary codes of length 71 to 105

IEEE Transactions on Aerospace and Electronic Systems, 2008
Best-known binary code autocorrelation peak sidelobe levels (PSLs) are updated for lengths 71 to 105. For lengths 71 to 82, codes with PSL 4 are found, establishing 4 as almost certainly the optimal value for these lengths. PSL-5 codes are produced for all lengths from 83 to 105, in many cases improving on best-known values.
Gregory E Coxson
exaly   +2 more sources

Phase-Only Control of Peak Sidelobe Level and Pattern Nulls Using Iterative Phase Perturbations

IEEE Antennas and Wireless Propagation Letters, 2019
Minimization of the maximum sidelobe level for a given array geometry, amplitude distribution, and nulling sectors by phase-only adjustment of the element coefficients is studied. Nonlinear optimization problem for phase distribution is solved using a novel iterative convex optimization algorithm, which includes mutual coupling effects and exploits ...
Jan Puskely, Yanki Aslan, Antoine Roederer   +2 more
exaly   +4 more sources