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742 results found

RF Dataset of Incumbent Radar Systems in the 3.5 GHz CBRS Band

Data provided by  National Institute of Standards and Technology

The RF dataset can be used to develop and test detection algorithms for the 3.5 GHz CBRS or similar bands where the primary users of the band are federal incumbent radar systems. The dataset consists of synthetically generated radar waveforms with added white Gaussian noise. The RF dataset is suitable for development and testing of machine/deep learning detection algorithms. A large number of parameters of the waveforms are randomized across the dataset. Due to its large size, the dataset is divided into groups, and each group consists of multiple files.

Tags: 3.5 GHz; CBRS; incumbent radar detection; RF dataset; classification; deep learning; machine learning; spectrum sharing,

Modified: 2024-02-22

NIST Nanocalorimeter DWG and DXF drawings for microfabrication mask generation

Data provided by  National Institute of Standards and Technology

Four files are included in this data set for mask generation that can be used to produce photolithography contact masks to create NIST nanocalorimeters. Two different designs are included, each in AutoCAD *.dwg format and a universal *.dxf format. The masks are intended to be printed on 5 inch masks blanks used to pattern 100 mm (4 inch) wafers.

Tags: nanocalorimeter,nanocalorimetry,microfabrication,photolithography,mask,NIST,

Modified: 2024-02-22

3D solid model of NIST Nanocalorimeter

Data provided by  National Institute of Standards and Technology

3D Solid Model of NIST Nanocalorimeter created in Solidworks 2019. The files include an assembly of three layers represented as part files - the silicon die layer, the silicon nitride membrane layer and the platinum metal layer. Please cite the related paper "Practical Guide to the Design, Fabrication and Calibration of NIST Nanocalorimeters" by Feng Yi, Michael D. Grapes, and David A. LaVan in the Journal of Research of the National Institute of Standards and Technology, Volume 124 (in press).

Tags: nanocalorimeter,nanocalorimetry,drawing,solid model,NIST,

Modified: 2024-02-22

Data from: Collaborative Guarded-Hot-Plate Tests between the National Institute of Standards and Technology and the National Physical Laboratory

Data provided by  National Institute of Standards and Technology

A bilateral study to compare guarded-hot-plate measurements at extended temperatures between laboratories at the National Institute of Standards and Technology (NIST) and the National Physical Laboratory (NPL) is presented. Measurements were conducted in accordance with standardized test methods (ISO 8302 or ASTM C177) over a temperature range from 20 °C to 160 °C (293 K to 433 K). Following a blind round-robin format, specimens of non-woven fibrous glass mat, approximately 22 mm thick and having a nominal bulk density of 200 kg/m3, were prepared and studied.

Tags: bilateral,comparison,fibrous glass mat,guarded hot plate,industrial insulation,interlaboratory,thermal conductivity,

Modified: 2024-02-22

Measurement Dataset for A Wireless Gantry System

Data provided by  National Institute of Standards and Technology

This dataset includes the position data of a two-dimensional gantry system experiment in which the G-code commands for the gantry were transmitted through a wireless communications link. The testbed is composed of four main components related to the operation of the gantry system. These components are the gantry system, the Wi-Fi network, the RF channel emulator, and the supervisory computer. In the experimental study, we run a scenario in which the gantry tool moves sequentially between four positions and has a preset dwell at each of the positions.

Tags: wireless,manufacturing,cyber-physical systems,robotics,gantry,

Modified: 2024-02-22

Optimal Bayesian Experimental Design

Data provided by  National Institute of Standards and Technology

Python module "optbayesexpt" uses optimal Bayesian experimental design methods to control measurement settings in order to efficiently determine model parameters. Given a parametric model - analogous to a fitting function - Bayesian inference uses each measurement "data point" to refine model parameters. Using this information, the software suggests measurement settings that are likely to efficiently reduce uncertainties. A TCP socket interface allows the software to be used from experimental control software written in other programming languages.

Tags: GitHub pages template,experimental design,Bayesian,optbayesexpt,python,measurement,

Modified: 2024-02-22

System Level Evaluation of UE-to-Network Relays in D2D-enabled LTE Networks

Data provided by  National Institute of Standards and Technology

The data in this document corresponds to the results presented in the paper entitled "System Level Evaluation of UE-to-Network Relays in D2D-enabled LTE Networks", to appear in the proceeding of the 2019 IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (IEEE CAMAD 2019)

Tags: public safety communication,device-to-device,D2D,UE-to-Network relay,wireless communication,

Modified: 2024-02-22

MCV QoE End to End Access Time Software Code

Data provided by  National Institute of Standards and Technology

This codeset was developed for the QoE MCV end to end access time measurement methodology.

Tags: Access Delay; Access Time; Articulation Band Correlation Modified Rhyme Test (ABC-MRT); Audio; Communications; Delay; Device to Device (D2D); Direct Mode; Handset;Key Performance Indicator (KPI); Land Mobile Radio (LMR); Latency; Mission CriticalPush To Talk (MCPTT); Mission Critical Voice (MCV); Modified Rhyme Test (MRT);Mouth-to-Ear (M2E); Project 25 (P25); Proximity Services (ProSe); Public Safety; PushTo Talk (PTT); Quality of Experience (QoE); Quality of Service (QoS); Repeater; RootMean Square Error (RMSE); Sidelink; Trunked Mode.,

Modified: 2024-02-22

MCV QoE Microcontroller Firmware

Data provided by  National Institute of Standards and Technology

Code for the TI MSP4030F5529LP board for PTT application with MCV QoE software

Tags: Ti Launch Pad,firmware,code Push to Talk,

Modified: 2024-02-22

MCV QoE End to End Access Time Measurement Data

Data provided by  National Institute of Standards and Technology

Data collected includes audio device characterization (latency/delay). End to end access time of Land Mobile Radios (LMR) including direct mode operation and trunked mode operation.

Tags: Access Delay; Access Time; Articulation Band Correlation Modified Rhyme Test (ABC-MRT); Audio; Communications; Delay; Device to Device (D2D); Direct Mode; Handset;Key Performance Indicator (KPI); Land Mobile Radio (LMR); Latency; Mission CriticalPush To Talk (MCPTT); Mission Critical Voice (MCV); Modified Rhyme Test (MRT);Mouth-to-Ear (M2E); Project 25 (P25); Proximity Services (ProSe); Public Safety; PushTo Talk (PTT); Quality of Experience (QoE); Quality of Service (QoS); Repeater; RootMean Square Error (RMSE); Sidelink; Trunked Mode.,

Modified: 2024-02-22