Sökning: "drop band"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden drop band.

1. 1. Filtering Pressure Oscillations in a Common Rail Pressure Signal with IIR Notch Filters for Injected Fuel Amount Estimation

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Marcus Akkila; Denis Ramsden; [2023]
   Nyckelord :DSP; Water hammer effect; IIR; Common-rail; Injected fuel amount estimation; Notch filter; Water hammer effect; IIR; Digital signalbehandling; Injektionsmängd; Common-rail; bandstoppfilter;

   Sammanfattning : This project concerns an inline six-cylinder (I6) diesel truck engine equipped with common-rail injection system. It has been done at the Swedish truck manufacturer Scania CV AB. The main focus is digital signal processing of the rail pressure sensor signal from the injection system. LÄS MER

3. 2. Magnetically tunable microwave resonator/filter

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Zhi Ye; [2022]
   Nyckelord :Magnetic tuning; Ferrite; Substrate integrated waveguide resonator; Substrate integrated waveguide filter; Magnetisk inställning; Ferrit; Substratintegrerad vågledarresonator; Substratintegrerad vågledarfilter;

   Sammanfattning : The magnetic tunability of ferrites has been studied and applied on many electric components for working in various frequency bands. Filters or resonators loaded by ferrites can thus work for different frequency requirements by tunning external biasing field. However, filters or resonators built by traditional waveguides are large in size. LÄS MER

4. 3. A Tension between the Early and Late Universe: Could Our Underdense Cosmic Neighbourhood Provide an Explanation?

   Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Sveva Castello; [2021]
   Nyckelord :Cosmology; Hubble tension; local void;

   Sammanfattning : In recent years, the increasingly precise constraints on the value of the Hubble constant, H0, have highlighted a discrepancy between the results arising from early-time and late-time measurements. A potential solution to this so-called Hubble tension is the hypothesis that we reside in a cosmic void, i.e. LÄS MER

5. 4. Geodesic Lens Antenna for sub-THz Imaging

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Joan Mitjans i Blasco; [2021]
   Nyckelord :;

   Sammanfattning : The Millimiter Wave (mmW) frequency band, characterized by a high atmospheric attenuation and wide available bandwidth has become of big interest for high accuracy radar imaging applications. The continuous development of the Monolithic Microwave Integrated Circuit (MMIC) technology yields to the appearance of different commercial-off-the-shelf (COTS) radar transceivers at that frequency band, where the antennas are fully integrated into the chip. LÄS MER

7. 5. Wi-Fi 6E Performance Evaluation in Industrial Scenarios

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Wenqi Rong; [2021]
   Nyckelord :Wi-Fi 6E; Industrial Wi-Fi; IEEE 802.11ax; Industry 4.0; Wireless local area networks; Industrial application; Wi-Fi 6E; Industrial Wi-Fi; IEEE 802.11ax; Industry 4.0; Trådlösa lokala nätverk; Industriell applikation;

   Sammanfattning : As Industry 4.0 keeps approaching, the quality of data communication in industrial scenarios is increasingly important to support a high degree of automation and intelligence in factories. LÄS MER