Coverage prediction in large scenarios based on the TLM method

Using Parseval's theorem it can be seen immediately that 〈\textbackslashtextbarE\textbackslashtextbar2〉 should give the same result in time domain and in frequency domain. Therefore, if in electrically large problems it can be assumed that the electromagnetic field distribution due to a finite bandwidth illumination can be described by average power density rather than interference phenomena, 〈\textbackslashtextbarE\textbackslashtextbar2〉 can also be obtained from a time domain simulation. If additionally the dominant scattering phenomena are approximately frequency independent, the time domain simulation may be carried out at lower frequencies than the actual signal frequency. This leads to larger cell size and therefore to a considerable reduction of computational cost. The results presented in this paper indicate, that the average power density in large scenarios is bandwidth independent. Further investigations with different bandwidths and center frequencies are planned in the future.     «

Using Parseval's theorem it can be seen immediately that 〈\textbackslashtextbarE\textbackslashtextbar2〉 should give the same result in time domain and in frequency domain. Therefore, if in electrically large problems it can be assumed that the electromagnetic field distribution due to a finite bandwidth illumination can be described by average power density rather than interference phenomena, 〈\textbackslashtextbarE\textbackslashtextbar2〉 can also be obtained from a time domain simulation. If ad...     »