Results 61 to 70 of about 356 (136)

LPI Sequences Optimization Method against Summation Detector Based on FFT Filter Bank

Remote Sensing
Waveform design is a crucial factor in electronic surveillance (ES) systems. In this paper, we introduce an algorithm that designs a low probability of intercept (LPI) radar waveform. Our approach directly minimizes the detection probability of summation
Qiang Liu, Fucheng Guo, Kunlai Xiong, Zhangmeng Liu, Weidong Hu   +4 more
doaj   +1 more source

Exploring Under‐Researched Operational Barriers Affecting Willingness to Work as Last‐Mile Crowdshippers: Evidence From Slovenia, the Czech Republic, and Ukraine

Journal of Advanced Transportation, Volume 2026, Issue 1, 2026.
Last‐mile crowdshipping, where individuals voluntarily transport parcels, offers solutions for urban logistics but struggles to recruit enough participants—termed ‘critical mass’—to serve as willing to work (WTW) crowdshippers. While previous studies have primarily focused on sociodemographic factors influencing WTW in Western and Southern Europe ...
Patricija Bajec, Halyna V. Pivtorak, Jaeyoung Jay Lee   +2 more
wiley   +1 more source

A Synchronization Approach Based on Bidirectional Correlation Search for Aperiodic Chaotic Direct Sequence Spread Spectrum Signals

IEEE Access, 2020
The chaotic direct sequence spread spectrum (CD3S) is one of the distinguished techniques providing physical layer secrecy and low probability of intercept (LPI) in wireless communication.
Guogang Yuan, Zili Chen, Xijun Gao, Jiangyan He, Hongxia Jia   +4 more
doaj   +1 more source

Multiloitering Munition Cooperative Surrounding and Attack Method Based on Wolf Pack Algorithm

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
Aiming at the optimization problem of multiloitering munitions cooperatively surrounding moving targets, this paper proposes a cooperative surrounding and attack method based on the wolf pack algorithm (WPA). Firstly, the relative kinematics model between the munitions and the target is established, and the cooperative surrounding task flow is analyzed
Zetian Zhang, Min Gao, Dan Fang, Chaowang Li, Mohammad Rezwan Habib   +4 more
wiley   +1 more source

Quantifying the differences in low probability of intercept radar waveforms using quadrature mirror filtering [PDF]

, 2002
Low Probability of Intercept (LPI) radars are a class of radar systems that possess certain performance characteristics causing them to be nearly undetectable by most modern digital intercept receivers.
Jarpa, Pedro F.
core  

LPI Radar Sinyallerinin Ozimge Yaklasimi ile Siniflandirilmasi Classification of LPI Radar Signals via Eigenimage Approach

, 2007
Low Probability of Intercept (LPI) Radar signals have the property of wide bandwidth, low peak power to make them difficult to be detected by Electronic Support Measures (ESM ...
Yacup Ozkcazanc, Engin Kocaadam, Oezkazanc, Yakup, Kocaadam, Engin   +3 more
core   +1 more source

Row Crops and the U.S. Agricultural Trade Deficit: Recent Trends and Policy Issues

Applied Economic Perspectives and Policy, Volume 47, Issue 5, Page 1759-1773, December 2025.
ABSTRACT Row crops such as soybeans, corn, wheat, and cotton are the backbone of the U.S. farm sector, accounting for around $60 billion of exports in 2023. While U.S. row crop exports remain robust, growing concerns over the rising U.S. agricultural trade deficit underscore the need to appraise the ongoing market and policy dynamics affecting the ...
William Ridley, Stephen Devadoss
wiley   +1 more source

Low Probability of Intercept-Based Optimal Power Allocation Scheme for an Integrated Multistatic Radar and Communication System [PDF]

, 2020
This paper investigates the problem of low probability of intercept-based optimal power allocation (LPI-OPA) for an integrated multistatic radar and communication system, which consists of multiple transmitters operating at different frequencies, a radar
Zhou, Jianjiang, Wang, Fei, Sellathurai, Mathini; id_orcid, Sellathurai, Mathini, Salous, Sana, Shi, Chenguang   +5 more
core   +1 more source

Intra-pulse Modulation Recognition of LPI Radar Signals Based on Improved MobileNet [PDF]

Radioengineering
Addressing the challenge of feature extraction for Low Probability of Intercept (LPI) radar signals under low signal-to-noise ratio conditions, this study introduces a new method for intra-pulse modulation recognition of LPI radar signals based on an ...
J. Wu, X. Wang, Y. Zhou, B. Chen, W. Li, L. Zhang   +5 more
doaj  

Low probability of intercept (LPI) free-space optical communication with wavelength diversity in strong atmospheric turbulence regime

Optics Express
In physical-layer security and cryptography we are concerned with the security of the transmitted data, while in low probability of intercept (LPI) communication with protecting the privacy of the end users. In our recent publications related to LPI communications and radars over free-space optical (FSO) links we proposed to hide the constant-amplitude
Vijay Nafria, Ivan B. Djordjevic
openaire   +1 more source