  The LOw Frequency ARray (LOFAR) is a next-generation radio telescope which
uses thousands of stationary dipoles to observe celestial phenomena. These
dipoles are grouped in various 'stations' which are centred on the Netherlands
with additional 'stations' across Europe. The telescope is designed to operate
at frequencies from 10 to 240\,MHz with very large fractional bandwidths
(25-100%). Several 'beam-formed' observing modes are now operational and the
system is designed to output data with high time and frequency resolution,
which are highly configurable. This makes LOFAR eminently suited for dynamic
spectrum measurements with applications in solar and planetary physics. In this
paper we describe progress in developing automated data analysis routines to
compute dynamic spectra from LOFAR time-frequency data, including correction
for the antenna response across the radio frequency pass-band and mitigation of
terrestrial radio-frequency interference (RFI). We apply these data routines to
observations of interplanetary scintillation (IPS), commonly used to infer
solar wind velocity and density information, and present initial science
results.
