BINGO - A novel method to detect BAOs using a total-power radio
  telescope
  BINGO is a novel single-dish total-power telescope that will map the
redshifted HI sky in a ~15 degree strip, at frequencies of 960-1260 MHz
(z=0.12-0.48). BINGO will have the sensitivity to accurately measure the HI
power spectrum and to detect Baryon Acoustic Oscillations (BAOs) for the first
time at radio wavelengths. This will provide complementary cosmological
information to existing surveys and will measure the acoustic scale to ~2 %
precision. We provide an update on BINGO including an improved two-mirror
optical configuration, final site selection and foreground removal simulations.
