Hello,

At line #108 of the file *ps_load_initial_gamma.m*, it says:

`bperp_mat(:,i)=bc.*cos(look)-bn.*sin(look); % Convert baselines from (T)CN to perp-para coordinates`

However, on the article

Bähr, H., Hanssen, R.F. Reliable estimation of orbit errors in spaceborne SAR interferometry. *J Geod* **86,** 1147–1164 (2012).

(Reliable estimation of orbit errors in spaceborne SAR interferometry - Journal of Geodesy)

on page 3 it says:

`B||(t, theta) = Bh(t)cos(theta)+Bv(t)sin(theta)`

where Bh stands for horizontal and Bv for vertical

Notice the +/- signs.

Is that a bug?

Oded Horowits