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Communications Library

Communications Library Communications Library The Communications Library models the transmission of signals through a series of hardware components and wireless radio frequency (RF) links. Accounting for the behavior of transmitter and receiver hardware, antenna gain patterns, the effects of wireless propagation and the effects of multiple interfering signals, the "link budget" can be evaluated to determine the times at which thresholds and figures of merit are satisfied. Additionally, with an extensible, open architecture, users can insert custom implementations virtually anywhere throughout a given communication system.

  • Antenna modeling (position, orientation, gain pattern, etc.)
  • Signal processing (amplifiers, filters, mixers, modulators and demodulators)
  • Wireless link propagation using standard and custom propagation models
  • Link budget and constraints (e.g. C/No, C/I, BER)

View online Communications Library documentation

If you are interested in trying our component technology, please visit the AGI Developer Network to download the free developer kit.

You can also contact us directy at 1.800.220.4785 or e-mail us at sales@agi.com

  • Highlights

    • Add transmitters and receivers to dynamic platforms
    • Model the antennas (position, orientation, gain pattern, etc.)
    • Account for the signal processing through amplifiers, filters, mixers, modulators and demodulators
    • Propagate wireless link using standard and custom propagation models
    • Evaluate link budget and constraints (e.g. C/No, C/I, BER)

  • Key Features

  • The Communications Library offers the following major capabilities:

    • Wireless links and support for platforms used as antennas
    • Antenna gain patterns
      • Isotropic gain pattern (omnidirectional)
      • Gaussian gain pattern
      • Helical gain pattern
      • Parabolic gain pattern
      • Square horn gain pattern

    • Wireless signal propagation
      • Light time delay and doppler shift taken into account for signal propagation
      • Free space path loss
      • Atmospheric attenuation from ITU-R P.676
      • Cloud and fog attenuation from ITU-R P.840
      • Rain attenuation from ITU-R P.618
      • Tropospheric scintillation from ITU-R P.618
      • Simple SATCOM attenuation model
      • Crane rain attenuation model

    • Signal processors modeling hardware behavior
      • Constant gain amplifier
      • Variable gain amplifier (IBO/OBO)
      • Constant frequency mixer
      • Variable frequency mixer
      • Signal source (analog/custom)
      • Digital data source (digital)
      • Digital modulator
      • Digital demodulator
      • Rectangular filter

    • Scalars representing link budget parameters
      • Effective isotropic radiated power (EIRP)
      • Received isotropic power (RIP)
      • Carrier to Noise (C/N)
      • Carrier to noise density (C/No)
      • Carrier to interference (C/I)
      • Carrier to noise + interference (C/(N+I))
      • Energy per bit to noise density (Eb/No)
      • Bit rrror rate (BER)
      • Antenna gain in link direction
      • Power at receiver output
      • Received power flux density
      • Propagation loss

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Supported OS and Hardware Requirements

Supported Operating Systems
  • Windows
  • XP Professional
  • Server 2003, 2008
  • Vista
  • Windows 7
  • Linux (TBA)
Minimum Hardware Requirements
  • 1.4 GHz Core Duo Processor
  • 2 GB RAM, 1 GB Disk Space for Installation
  • Dedicated Storage for Data, based on your needs
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