HFNOC/Signal-Server
2
0
Fork 0
forked from ExternalVendorCode/Signal-Server
Code Pull Requests Activity

2.75, Hata model enhancement for < 200MHz

Browse Source
This commit is contained in:
alex
2016-04-22 22:49:12 +01:00
parent 1216e66121
commit 7845afd2f0
9 changed files with 77 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
models/hata.cc
View File

@@ -27,17 +27,19 @@ mode 1 = URBAN
mode 2 = SUBURBAN
mode 3 = OPEN
*/
float lh_M;
float C_H;
float logf = log10(f);
float lh_M = log10(11.75 * h_M);
float C_H = 3.2 * lh_M * lh_M - 4.97;
if(f<200){
lh_M = log10(1.54 * h_M);
C_H = 8.29 * (lh_M * lh_M) - 1.1;
}else{
lh_M = log10(11.75 * h_M);
C_H = 3.2 * (lh_M * lh_M) - 4.97;
}
float logf = log10(f);
float L_u =
69.55 + 26.16 * logf - 13.82 * log10(h_B) - C_H + (44.9 -
6.55 *
log10(h_B)) *
log10(d);
float L_u = 69.55 + 26.16 * logf - 13.82 * log10(h_B) - C_H + (44.9 - 6.55 * log10(h_B)) * log10(d);
if (!mode || mode == 1) {
return L_u; //URBAN