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Predicting CNR Frequency Hopping Interference by Simulation

A computer model has been developed to enable studies of frequency hopping interference. The program is capable of accurately simulating the interference imposed on a frequency hopping or fixed frequency receiver when it is subjected to a multitude of interference sources, such as communication transmitters, jammers and ambient noise. The model handles extreme cosite situations as well as distant emitters. Results are presented as the cumulative distribution for the RF signal-to-interference ratio. The computed interference can also be imposed on a real RF link between a transmitter and the receiver being interfered. This is done under controlled laboratory conditions and enables realistic demonstrations of interference effects and measurements of performance parameters such as synchronization probability, bit error rate and speech intelligibility.