A simple method to estimate the impact of different radiated emission limits on digital radio receiver performance

A simple model to estimate the bit error probability (BEP) for a digital radio receiver, co-located with an undesired radiated interference source, is proposed. Co-location is defined as the area around the receiver (radius r), where an interferer has a significant impact on the BEP. The interference source is approximated to be of Gaussian type. A comparison of the emission limits given in Euronorm EN55022, Classes A, B, and RE 102 in MIL-STD-461D on this radius r is presented. For differential phase-shift keying systems, assuming BEP<10/sup -3/, at SNR=12 dB, the model delivers for Class A: r/spl ap/70 m, for Class B: r/spl ap/35 m and for RE102: r/spl ap/10 m.