Voici notre dernière sélection de publications et brevets mondiaux en anglais sur Exemples de transformée de Fourier rapide (FFT), parmi de nombreuses revues scientifiques en ligne, classées et centrées sur fast fourier, FFT, discrete fourier et Cooley-Tukey.
Doppler division multiplexing (ddm) multiple-input multiple-output (mimo) radar system and decoding method
Patent published on the 2025-02-19 in EP under Ref EP4509863 by NXP BV [NL] (Rosu Filip Alexandru [nl], Brigalda Adriana [nl], Silion Daniel [nl])
Abstract: A radar system may include transmitter modules configured to transmit multiple transmit signals in accordance with a Doppler Domain Multiplexing (DDM) scheme, receiver modules configured to receive reflections from the plurality of transmit signals reflected off an object and to generate corresponding digital signals, and a signal processor configured to generate a range-Doppler antenna cube representing the digital signals, and, for each of range bin of the cube, to generate a decoded range-Dop[...]
Our summary: Radar system with DDM and MIMO technology for signal processing and peak identification in range-Doppler antenna cube.
Doppler division multiplexing, multiple-input multiple-output, radar system, decoding method
Patent
Improved radar detection using prior tracked object information
Patent published on the 2025-02-19 in EP under Ref EP4509864 by NXP BV [NL] (Chan Lu Lu [nl], Gehrels Cornelis [nl], Sari Alp [nl], Kaneko Takeshi [nl], Paker ÖzgÜn [nl], Koppelaar Arie Geert Cornelis [nl])
Abstract: A system includes a processor and a non-transitory computer-readable medium storing machine instructions that cause the processor to perform a first fast Fourier transform (FFT) on received radar data to obtain a range-antenna data array and to perform a second FFT on the range-antenna data array to obtain a range-Doppler-antenna data cube. The processor performs peak detection on the range-Doppler-antenna data cube based on object information to obtain a subset that includes confirmed peaks and[...]
Our summary: Improved radar detection through peak detection and angle of arrival calculations using prior tracked object information for filtering candidate peaks.
radar detection, fast Fourier transform (FFT), peak detection, angle of arrival calculations
Patent
Automatic Configuration Search for Parameter-Efficient Fine-Tuning
Published on 2024-05-25 by Han Zhou, Xingchen Wan, Ivan Vuli?, Anna Korhonen @MIT
Abstract: Large pretrained language models are widely used in downstream NLP tasks via task-specific fine-tuning, but such procedures can be costly. Recently, Parameter-Efficient Fine-Tuning (PEFT) methods have achieved strong task performance while updating much fewer parameters than full model fine-tuning (FFT). However, it is non-trivial to make informed design choices on the PEFT configurations, such as their architecture, the number of tunable parameters, and even the layers in which the PEFT modules[...]
Our summary: Efficient fine-tuning method achieved with fewer parameters. AutoPEFT uses Bayesian optimization to discover optimal configurations. Outperforms existing methods on GLUE and SuperGLUE tasks. Pareto-optimal set balances performance and cost.
automatic configuration search, parameter-efficient fine-tuning, neural architecture search, pretrained language models, task-specific fine-tuning
Publication
Anyone else amazed at how FFT is revolutionizing tech? But how accessible will this be for smaller startups?
Interesting read! But isnt the radix-2 Cooley-Tukey FFT algorithm more efficient than the mixed-radix algorithm mentioned here? Curious to know your take.
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