Accession Number:

ADA261810

Title:

A Channel Simulation Processor for the Multi-Node Tactical Network Simulator

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC INFORMATION TECHNOLOGY DIV

Personal Author(s):

Report Date:

1993-01-17

Pagination or Media Count:

27.0

Abstract:

The design and development of a digital signal processor DSP based groundwave and ionospheric communication channel simulator is described. The primary objective is to simulate communication channel perturbations for a network of communication via an array of DSP modules operating in real-time. This array of channel simulator processors is a subsystem of the multimode tactical network simulator TACNETSIM being developed by the Information Technology Division at the Naval Research LaboratoryNRL. The propagation model developed is based upon intra-battlegroup high frequency HF communications. The communication channel model consists of two modes of propagation HF groundwave and HF skywave. The HF skywave component is simulated via a Watterson ionospheric model. The real-time DSP implementation of the Watterson ionospheric model is described in terms of subprocesses. The performance of each subprocess is shown to be within established statistical parameters. Detailed specifications are given of both the hardware and software design. The simulator is designed for dynamic channel modeling and includes a data interface for real- time program control.... Watterson model, Digital signal processing, Propagation modelling.

Subject Categories:

  • Atmospheric Physics
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE