Sökning: "Frequency shift keying"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Frequency shift keying.

  1. 1. Design of a Differential Cross-Coupled Power LC Oscillator with ASK Modulation

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Sanjay Sarker; [2023]
    Nyckelord :Cross-coupled LC Oscillator; Amplitude Shift Keying ASK Modulator; Spiral Inductor; MIM Capacitor; Current Mirror Switching;

    Sammanfattning : Rapid growth in the field of communications industry has led to newer opportunities and challenges in the design of CMOS based monolithic integrated circuits. ASK modulators are a class of digital modulators which are known for their relative simplicity of implementation for low cost applications in the industrial and biomedical domains. LÄS MER

  3. 2. Development of new criteria for train detection and evaluation in critical conditions

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

    Författare :Sofiane Kerbal; [2019]
    Nyckelord :railway signaling; train detection; track circuit; shunt; frequency modulation; frequency-shift keying modulation; third-order harmonic; short-time Fourier transform; power spectral density estimation; cross-correlation;

    Sammanfattning : Railway signaling is of paramount importance to ensure traffic management andsafety on the rail network. The main lines are divided into sections called ‘blocks’,which are governed by a fixed signal installation. To prevent trains from colliding,each block allows one train at once. LÄS MER

  4. 3. Vicinity Integrated Circuit Card Emulation of ISO15693 in NFC Devices

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Elmar Xander van Rijnswou; [2018]
    Nyckelord :;

    Sammanfattning : This thesis describes the work flow of integrating a new digital design in an existing integrated circuit, the SN100V designed by NXP. The new digital design enables theSN100V for emulating ISO 15693 card, which is not available yet in any near field radio device. LÄS MER

  5. 4. Frequency Tracking Using Digital Cavities

    Kandidat-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Fredrik Zetterblom; [2017]
    Nyckelord :Digital cavities; Frequency Tracking; Technology and Engineering;

    Sammanfattning : Digital cavities are efficient algorithms for comb filters with very low computational costs. They have been used to precisely measure the amplitude and phase of high frequency signals (few giga samples per second) from data acquired by high speed digitizers 80 GSps. LÄS MER

  7. 5. Modulation schemes in ambient backscatter communication

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Oliver Harms; [2017]
    Nyckelord :;

    Sammanfattning : This thesis presents a study of different modulation schemes in the context of backscatter communication. Backscatter communication is a way of wireless communication where no active signal is transmitted. Instead surrounding signals are modified to transmit data. LÄS MER