Results 61 to 70 of about 547 (145)
Information theoretic waveform design with applications to adaptive‐on‐transmit radar
IET Radar, Sonar &Navigation, Volume 18, Issue 1, Page 222-234, January 2024.The marginal Fisher information (MFI) metric is used to design waveforms for the sake of informationally optimal adaptive‐on‐transmit radar operation. The efficacy of the MFI waveform design and minimum mean square error (MMSE) estimation are experimentally demonstrated and extended into an adaptive and dynamic sensing paradigm.
Daniel B. Herr +2 more
wiley +1 more source
IEEE AccessSequences with low auto-correlation sidelobes are important in diverse fields, including communications, radar, sonar, and medical imaging. The task of finding binary sequences with low auto-correlation is known as a difficult optimization problem ...
Janez Brest +3 more
doaj +1 more source
Remote SensingWith the increasing complexity of the electromagnetic environment, radar waveform design needs to break through the limitation of traditional single-function architectures, prompting the emergence of integrated radar waveforms.
Haoting Guo +6 more
doaj +1 more source
Sparse Total Focus Imaging of Rail Transit Rail Defects Based on Grey Wolf Algorithm
Chengshi guidao jiaotong yanjiu[Objective] Using the ultrasonic phased array technology can realize high-precision imaging detection of rail transit rail defects. However, the widely used FMC-TFM (full matrix capture-total focusing method) has the disadvantages of long computation ...
Lubin QIAN +4 more
doaj +1 more source
Comparison of file sanitization techniques in usb based on average file entropy valves [PDF]
, 2018 Nowadays, the technology has become so advanced that many electronic gadgets are in every household today. The fast growth of technology today gives the ability for digital devices like smartphones and laptops to have a huge size of storage which is ...
Onn, Nur Amanina
core
Design of Wideband Multifunction Antenna Array Based on Multiple Interleaved Subarrays [PDF]
, 2016 A new Modified Iterative Fourier Technique (MIFT) is proposed for the design of interleaved linear antenna arrays which operate at different frequencies with no grating lobes, low-sidelobe levels, and wide bandwidths.
Buhong Wang, Longjun Li
core +2 more sources
ANALYSIS AND WAVEFORM DESIGN OF NON LINEAR FREQUENCY MODULATION (NLFM) TECHNIQUES FOR RADAR PULSE COMPRESSION [PDF]
, 2018 Pulse compression methods are used in the pulsed radar to overcome the problems between the parameters of range and resolution. Pulse compression is a technique of transmitting pulses with long durations for large range detection capability and then in ...
MUHAMAD RIDWAN WIDYANTARA
core
Advanced digital SAR processing study [PDF]
A highly programmable, land based, real time synthetic aperture radar (SAR) processor requiring a processed pixel rate of 2.75 MHz or more in a four look system was designed.
Gaffney, B. P. +4 more
core +1 more source
Development and saw device implementation of a new weighted stepped chirp code signal for direct sequence spread spectrum communications systems [PDF]
, 1998 This work introduces the new weighted stepped chirp code signal for direct sequence spread spectrum (DS/SS) communications systems. This code signal uses the truncated cosine series functions as the chip functions.
Carter, Scott Edward
core +1 more source
Applied SciencesThis study proposes a hybrid optimization algorithm (IFWA-SA) integrating an improved fireworks algorithm with simulated annealing for sparse array synthesis in multiple-input multiple-output (MIMO) radar systems.
Lifei Deng, Jinran Zhao, Yunqing Liu
doaj +1 more source