An Empirical Self-Protection Chaff Model
Abstract
The purpose of this study was to develop a computer model to calculate the probability of attaining breaklock in an aircraft-chaff-tracking radar encounter, Although some of the assumptions made may seem to oversimplify the model, these were necessary to create the simple, quick running simulation that was desired. This thesis produced a simulation capable of charting the effectiveness of chaff used in the self-protective mode. Simulation results can be used to determine which type/design of chaff/chaff canister will produce a greater probability of breaklock for a given scenario. The radar included in this simulation is a Scan with Compensation tracking radar. Variable parameters include pulse width, beamwidth, pulse repetition frequency, and operation frequency. An 'ideal' MTI filter is incorporated into the model to negate the effect of MTI blind speeds. Results of several simulation runs illustrate the effects of varying chaff radar cross section and aircraft velocity on the probability of attaining breaklock, Although aircraft maneuvers are not included in the simulation, conclusions as to how the probability of breaklock is affected can be made by varying the velocity vector.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA151928
Entities
People
- Robert J. Rohrs
Organizations
- Air Force Institute of Technology