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reinerh

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Everything posted by reinerh

  1. The WinProp 14.1 installer available on Connect at the moment will run after having installed the vcredist_x86.exe (MS Visual C++ Redistributables Update 3) available under: https://www.microsoft.com/en-us/download/details.aspx?id=53587
  2. Hello, you can use the DPM model even without preprocessing, i.e. by using the *odb file for an urban scenario or the *.idb file for an indoor scenario. Then the computation will be performed in the area defined under the Simulation tab. Best regards
  3. Hello, the breakpoint describes the physical phenomenon that from a certain distance on the received power decreases with 40∙log(distance) instead of 20∙log(distance) which is valid for the free space propagation. This is due to the superposition of the direct ray with a ground reflected contribution. The theoretical value of the breakpoint distance is calculated according to 4∙PI∙hTx∙hRx/λ. So depending on the used frequency you can compute the breakpoint distance in your case, e.g. for 2 GHz with 4.5m height for Tx and Rx the breakpoint distance is 1696m, i.e. far beyond the shown minima in the below figure (first 100m). Basically the increased propagation exponent after the breakpoint is because the last minima is asymptotically approached.
  4. Hello, the transmission matrix considers both polarization states (V and H) for the computations, which means it is independent of the assignment done at the transmitter in your project as both cases (V and H pol) will be computed in any case and provided in the corresponding results. For the interactions (reflections, transmissions, diffractions) the defined material properties are considered. Best regards
  5. Hello, there is no fix limitation in ProMan regarding the number of points which can be considered. The error 953 indicates that under the Parameters tab => IRT settings the number of (total) interactions (Max reflections AND diffractions) on the right is smaller than the number of reflections and/or diffractions defined on the left part of the settings dialogue. Best regards
  6. Hello, the phase information is not explicitly computed in ProMan, only the propagation delay which is saved in the ASCII *.str file for each ray (as well as the number and type of interactions for this ray). The phase information would need to be computed manually outside ProMan, based on the delay plus considering a phase shift of Pi for each reflection. Best regards Reiner Hoppe
  7. Hello, this problem was also reported by some other users and we fixed it in the meantime. Please download the updated WinProp V14 package which is available under Altair Connect. Thanks
  8. There are two ways to get the information about the max. building height plus topography in an urban scenario. First approach would be to run a preprocessing (e.g. for DPM model) with the urban building vector data (odb file) and the topo data (tdb file) in WallMan and activate here under the General tab of the WallMan preprocessing parameters the output of the "absolute building height". Then a corresponding height file will be generated in WallMan which can be displayed in ProMan. Second approach would be to use ProMan. When having the urban project loaded in ProMan the "Balloon tip" button can be used (2nd lowest button from the tool bar on the right side of the ProMan screen) to display the corresponding heights.
  9. Generally the indoor and outdoor pixels can be separated using a mask file (which is a WinProp binary result file including the value 1 for those locations/pixel which shall be considered and the value 0 for those locations/pixels which shall be skipt). For urban scenarios such a mask file can be generated at the preprocessing in WallMan. For this purpose you need to activate under the General tab of the urban prerpocessing parameters under the optional output files the morpho clutter data with height interval of e.g. 1000m (should be larger than the highest building). Then during the preprocessing an *.mdb file in the defined resolution will be generated with the value 1 for the indoor pixels and the value 0 for the outdoor pixels. Then just rename this *.mdb file to *.mas and use it for the masking in ProMan by loading e.g. an *.fpp result file and then select Edit => Mask Data => Mask Result file. After this only the indoor pixels will remain in the result.
  10. You can use the WinProp global material catalogue which includes the electrical properties for typical construction materials (brick, concrete, wood, ...) for a wide frequency range up to 75 GHz (including also 30 GHz). The latest catalogue is available for download on the WinProp homepage. Please send an e-mail to winprop@altair.de if you need the account information for the download.
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