  This paper deals with the problem of estimating the delays and amplitudes of
a weighted superposition of pulses, called stream of pulses. This problem is
motivated by a variety of applications, such as ultrasound and radar. This
paper shows that the recovery error of a tractable convex optimization problem
is proportional to the noise level. Additionally, the estimated delays are
clustered around the true delays. This holds provided that the pulse meets a
few mild localization properties and that a separation condition holds. If the
amplitudes are known to be positive, the separation is unnecessary. In this
case, the recovery error is proportional to the noise level and depends on the
maximal number of delays within a resolution cell.
