  Noise is the greatest obstacle in quantum metrology that limits it achievable
precision and sensitivity. There are many techniques to mitigate the effect of
noise, but this can never be done completely. One commonly proposed technique
is to repeatedly apply quantum error correction. Unfortunately, the required
repetition frequency needed to recover the Heisenberg limit is unachievable
with the existing quantum technologies. In this article we explore the discrete
application of quantum error correction with current technological limitations
in mind. We establish that quantum error correction can be beneficial and
highlight the factors which need to be improved so one can reliably reach the
Heisenberg limit level precision.
