% find the minimum of x or y
xymin = x;
if (xymin > y)
xymin = y;
end
if (xymin > 23)
xymin = 23;
end
note that xymin varies from zero to 22.5 degrees. If we multiply it by four, it will vary
from zero to 90 degrees, and can be used below.
In the front left quadrant
LRL = (cos(cs) – GS(lr))/(1+.29*sin(4*xymin))
LRR = (-sin(cs) – GR(lr))/(1+.29*sin(4*xymin))
In the front right quadrant,
LRL = cos(cs)
LRR = -sin(cs)
In Figure 16 these matrix elements
are multiplied by the "tv matrix"
correction. We will call the
correction for TV Matrix
tvcorr(|lr|+|cs|). Tvcorr(|lr|+|cs|) is -
3dB at zero, and 1 when the
argument is 22.5 degrees and
higher.
Figure 16: The square root of the sum of the squares of LRL and LRR using the new values for GR and GS.
Note that except for the valley created by the “tv matrix” correction, the sum of the squares is close to one
and continuous.
