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"Calibration System for High-Voltage Transformers With Multiharmonic Di" by Imanka Jayathilaka, Wei Yan et al.

Non-ideal frequency response (FR) and voltage non-linearity of high-voltage (HV) instrument transformers directly impact the accuracy of HV measurements in the presence of harmonics. Characterization of voltage instrument transformer FR is generally performed at low voltage (LV) with sinusoidal test signals. Those results may not accurately represent the response of the instrument transformer when subjected to distorted waveforms in modern power systems. This article presents a calibration system for the evaluation of harmonic measurement accuracy of single-phase instrument transformers with rated voltages up to 132/\surd 3 kV using multitone test signals containing a HV fundamental component and superimposed harmonics up to 10 kHz. Such signals would represent the realistic operating conditions of HV instrument transformers. The performance of the developed system was analyzed by obtaining the voltage ratio and phase displacement of the reference capacitive voltage divider (CVD) from ....

Discrete Fourier Transform , Requency Response Fr Measurement , Harmonic Analysis , Nstrument Voltage Transformers , Measurement Uncertainty , Power Quality ,

Electronics | Free Full-Text | MeMPA: A Memory Mapped M-SIMD Co-Processor to Cope with the Memory Wall Issue

The amazing development of transistor technology has been the main driving force behind modern electronics. Over time, this process has slowed down introducing performance bottlenecks in data-intensive applications. A main cause is the classical von Neumann architecture, which entails constant data exchanges between processing units and data memory, wasting time and power. As a possible alternative, the Beyond von Neumann approach is now rapidly spreading. Although architectures following this paradigm vary a lot in layout and functioning, they all share the same principle: bringing computing elements as near as possible to memory while inserting customized processing elements, able to elaborate more data. Thus, power and time are saved through parallel execution and usage of processing components with local memory elements, optimized for running data-intensive algorithms. Here, a new memory-mapped co-processor (MeMPA) is presented to boost systems performance. MeMPA relies on a progra ....

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DFT-S-OFDM Explained » Electronics Notes

DFT-S-OFDM is a form of orthogonal frequency division multiplexing used in advanced wireless systems to reduce the PAPR, enabling power amplifiers to operate more efficiently. ....

Discrete Fourier Transform Spread Orthogonal Frequency Division , Orthogonal Frequency Division , Orthogonal Frequency Division Multiplexing , Frequency Division Multiplexing Includes , Discrete Fourier Transform , New Radio ,

play(1) - Linux man page

Introduction SoX reads and writes audio files in most popular formats and can optionally apply effects to them; it can combine multiple input sources, . ....

United States , Scott Lehman , Lance Norskog , Chris Bagwell , Richard Furse , Steve Harris , Swiss Army , Free Software Foundation , Network Graphic , Compact Discs , Digital Audio Tape , Replay Gain , Replay Gain , Default Audio , Giving Sox , Input File Combining , Input File Balancing , Full Rate , Stopping Sox , Output Files , Discrete Fourier Transform , Compact Disc , Pink Floyd , Rectangular Probability Density Function , Linux Audio Developer , Simple Plugin ,

A Mechanistic Interpretability Analysis of Grokking

A significantly updated version of this work is now on Arxiv … ....

Janos Kramar , Martin Wattenberg , Vikrant Varma , Zac Kenton , Chris Olah , Jeff Wu , Noa Nabeshima , Jacob Steinhardt , Evan Hubinger , Jacob Hilton , Arthur Conmy , Tom Lieberum , Michela Paganini , John Wentworth , Rohin Shah , Kevin Wang , Yalex Ray , Nicholas Turner , Nick Cammarata , Tao Lin , David Lindner , Neel Nanda , David Bau , Lauro Langosco , Eric Michaud , Johannes Treutlein ,