1.4.10 Interference calculation

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Last updated: Aug 18, 2016
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SEAMCAT calculates the probability of interference for generic (i.e. non-cellular) victim systems. Each sample of dRSS and iRSS generated during a simulation is compared against the relevant signal-to-noise criterion (specified in the scenario, such as C/N, C/N+I etc). The probability of interference is calculated for all events where the dRSS is greater than the sensitivity of the victim link receiver (dRSS > sens). This probability can be calculated for two different modes, as illustrated in Figure 271 of section 12.9.2.

  • Compatibility: This mode provides a single-figure estimate of the probability of interference in a given interference scenario;
  • Translation: This mode calculates probability of interference as a function of changing one of the following parameters:

 

  1. Transmitter power of the interefering link transmitter;
  2. Blocking response level of the victim link receiver;
  3. Intermodulation rejection level for the victim link receiver