Essays about: "pass band digital data"

Found 5 essays containing the words pass band digital data.

  1. 1. Above-ground biomass estimation in boreal productive forests using Sentinel-1 data

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : David Roc Roc; [2019]
    Keywords : synthetic aperture radar SAR ; backscatter intensity; InSAR; interferometric coherence; LIDAR; above-ground biomass; forestry;

    Abstract : Estimation of biomass has high importance for economic, ecologic and climatic reasons due to the multiple ecosystem services offered by forested landscapes. Measurements that are taken in the field incur personal and economic costs. Nevertheless, biomass surveying based on remote sensing techniques offer efficiency thanks to covering large areas. READ MORE

  3. 2. Design and Simulation of Miscellaneous Blocks of an All-Digital PLL for the 60 GHz Band

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Hadiyah Butt; Manjularani Padala; [2013]
    Keywords : ADPLL; PLL; DCO; TDC;

    Abstract : A phase-locked loop commonly known as PLL is widely used in communication systems. A PLL is used in radio, telecommunications, modulation and demodulation. It can be used for clock generation, clock recovery from data signals, clock distribution and as a frequency synthesizer. Most electronic circuits encounter the problem of the clock skew. READ MORE

  4. 3. Digital Techniques for Compensation of Radio Frequency Impairments in Mobile Communication Terminals

    University essay from Elektroniska komponenter

    Author : Sudarshan Gandla; [2011]
    Keywords : ;

    Abstract : The 3G and 4G systems make use of spectrum efficient modulation techniques which has variable amplitude. The variable amplitude methods usually use carrier‘s amplitude and phase to carry the message signal. READ MORE

  5. 4. A Continuous-Time ADC and DSP for Smart Dust

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Dhurv Chhetri; Venkata Narasimha Manyam; [2011]
    Keywords : smart dust; Event-driven ED ; continuous time CT ; Delta-modulation DM ; segmented register string Digital to analog converter DAC ; digital signal processing DSP ;

    Abstract : Recently, smart dust or wireless sensor networks are gaining more attention.These autonomous, ultra-low power sensor-based electronic devices sense and process burst-type environmental variations and pass the data from one node (mote) to another in an ad-hoc network. READ MORE

  6. 5. RF Sampling by Low Pass ΣΔ Converter for Flexible Receiver Front End

    University essay from Institutionen för systemteknik

    Author : Fahad Qazi; [2009]
    Keywords : RF sampling; Sampling Mixer; Downconversion; Sigma Delta modulator; Low pass Sigma Delta ADC; Passive Sigma Delta ADC; Mixer inside the loop;

    Abstract : In today’s world the multi-standard wireless receivers are gaining more and more popularity. End-users want to access voice, data and streaming media from a single wireless terminal. An ideal approach for multi-standard receiver front-end is to digitize a wide band RF signal available from the antenna. READ MORE